Imported Upstream version 0.5
[pysam.git] / pysam / cvcf.c
index d194519d5e20e227a6c1d69ba9d9128e3f26b897..82eae7d1868ff4b1072995053ff6b22929a2d1c7 100644 (file)
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.14.1 on Sat Oct 15 05:27:48 2011 */
+/* Generated by Cython 0.13 on Thu May  5 15:40:49 2011 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
   #define PyBytes_Repr                 PyString_Repr
   #define PyBytes_Concat               PyString_Concat
   #define PyBytes_ConcatAndDel         PyString_ConcatAndDel
-#endif
-
-#if PY_VERSION_HEX < 0x02060000
   #define PySet_Check(obj)             PyObject_TypeCheck(obj, &PySet_Type)
   #define PyFrozenSet_Check(obj)       PyObject_TypeCheck(obj, &PyFrozenSet_Type)
 #endif
+
 #ifndef PySet_CheckExact
-  #define PySet_CheckExact(obj)        (Py_TYPE(obj) == &PySet_Type)
+#  define PySet_CheckExact(obj)          (Py_TYPE(obj) == &PySet_Type)
 #endif
 
-#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
-
 #if PY_MAJOR_VERSION >= 3
-  #define PyIntObject                  PyLongObject
   #define PyInt_Type                   PyLong_Type
   #define PyInt_Check(op)              PyLong_Check(op)
   #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
 #endif
 
 #if PY_MAJOR_VERSION >= 3
-  #define PyBoolObject                 PyLongObject
+  #define PyBoolObject PyLongObject
 #endif
 
 
   #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
 #endif
 
-#if (PY_MAJOR_VERSION < 3) || (PY_VERSION_HEX >= 0x03010300)
-  #define __Pyx_PySequence_GetSlice(obj, a, b) PySequence_GetSlice(obj, a, b)
-  #define __Pyx_PySequence_SetSlice(obj, a, b, value) PySequence_SetSlice(obj, a, b, value)
-  #define __Pyx_PySequence_DelSlice(obj, a, b) PySequence_DelSlice(obj, a, b)
-#else
-  #define __Pyx_PySequence_GetSlice(obj, a, b) (unlikely(!(obj)) ? \
-        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), (PyObject*)0) : \
-        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_GetSlice(obj, a, b)) : \
-            (PyErr_Format(PyExc_TypeError, "'%.200s' object is unsliceable", (obj)->ob_type->tp_name), (PyObject*)0)))
-  #define __Pyx_PySequence_SetSlice(obj, a, b, value) (unlikely(!(obj)) ? \
-        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), -1) : \
-        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_SetSlice(obj, a, b, value)) : \
-            (PyErr_Format(PyExc_TypeError, "'%.200s' object doesn't support slice assignment", (obj)->ob_type->tp_name), -1)))
-  #define __Pyx_PySequence_DelSlice(obj, a, b) (unlikely(!(obj)) ? \
-        (PyErr_SetString(PyExc_SystemError, "null argument to internal routine"), -1) : \
-        (likely((obj)->ob_type->tp_as_mapping) ? (PySequence_DelSlice(obj, a, b)) : \
-            (PyErr_Format(PyExc_TypeError, "'%.200s' object doesn't support slice deletion", (obj)->ob_type->tp_name), -1)))
-#endif
-
 #if PY_MAJOR_VERSION >= 3
   #define PyMethod_New(func, self, klass) ((self) ? PyMethod_New(func, self) : PyInstanceMethod_New(func))
 #endif
 #include "bgzf.h"
 #include "tabix.h"
 
-#ifdef PYREX_WITHOUT_ASSERTIONS
-#define CYTHON_WITHOUT_ASSERTIONS
-#endif
-
-
 /* inline attribute */
 #ifndef CYTHON_INLINE
   #if defined(__GNUC__)
   #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
     #define CYTHON_INLINE inline
   #else
-    #define CYTHON_INLINE
+    #define CYTHON_INLINE 
   #endif
 #endif
 
 #ifndef CYTHON_UNUSED
 # if defined(__GNUC__)
 #   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
-#     define CYTHON_UNUSED __attribute__ ((__unused__))
+#     define CYTHON_UNUSED __attribute__ ((__unused__)) 
 #   else
 #     define CYTHON_UNUSED
 #   endif
 # elif defined(__ICC) || defined(__INTEL_COMPILER)
-#   define CYTHON_UNUSED __attribute__ ((__unused__))
+#   define CYTHON_UNUSED __attribute__ ((__unused__)) 
 # else
-#   define CYTHON_UNUSED
+#   define CYTHON_UNUSED 
 # endif
 #endif
 
@@ -286,7 +257,7 @@ static CYTHON_INLINE size_t __Pyx_PyInt_AsSize_t(PyObject*);
 
 #ifdef __GNUC__
 /* Test for GCC > 2.95 */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95))
+#if __GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)) 
 #define likely(x)   __builtin_expect(!!(x), 1)
 #define unlikely(x) __builtin_expect(!!(x), 0)
 #else /* __GNUC__ > 2 ... */
@@ -316,7 +287,7 @@ static const char *__pyx_f[] = {
 
 /* Type declarations */
 
-/* "TabProxies.pxd":42
+/* "pysam/TabProxies.pxd":42
  *   ctypedef int uint64_t
  * 
  * cdef class TupleProxy:             # <<<<<<<<<<<<<<
@@ -336,7 +307,7 @@ struct __pyx_obj_10TabProxies_TupleProxy {
   int is_modified;
 };
 
-/* "TabProxies.pxd":77
+/* "pysam/TabProxies.pxd":77
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class NamedTupleProxy( TupleProxy) :             # <<<<<<<<<<<<<<
@@ -348,7 +319,7 @@ struct __pyx_obj_10TabProxies_NamedTupleProxy {
   struct __pyx_obj_10TabProxies_TupleProxy __pyx_base;
 };
 
-/* "TabProxies.pxd":80
+/* "pysam/TabProxies.pxd":80
  *     pass
  * 
  * cdef class BedProxy( NamedTupleProxy) :             # <<<<<<<<<<<<<<
@@ -364,7 +335,7 @@ struct __pyx_obj_10TabProxies_BedProxy {
   int bedfields;
 };
 
-/* "cvcf.pyx":94
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":94
  * ###########################################################################################################
  * 
  * cdef class VCFRecord( TabProxies.TupleProxy):             # <<<<<<<<<<<<<<
@@ -379,7 +350,7 @@ struct __pyx_obj_4cvcf_VCFRecord {
   uint32_t pos;
 };
 
-/* "TabProxies.pxd":91
+/* "pysam/TabProxies.pxd":91
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class VCFProxy( NamedTupleProxy) :             # <<<<<<<<<<<<<<
@@ -393,7 +364,7 @@ struct __pyx_obj_10TabProxies_VCFProxy {
   uint32_t pos;
 };
 
-/* "ctabix.pxd":178
+/* "pysam/ctabix.pxd":178
  *     cdef tabix_t * tabixfile
  * 
  * cdef class Parser:             # <<<<<<<<<<<<<<
@@ -404,7 +375,7 @@ struct __pyx_obj_6ctabix_Parser {
   PyObject_HEAD
 };
 
-/* "TabProxies.pxd":60
+/* "pysam/TabProxies.pxd":60
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class GTFProxy( TupleProxy) :             # <<<<<<<<<<<<<<
@@ -426,7 +397,7 @@ struct __pyx_obj_10TabProxies_GTFProxy {
   int hasOwnAttributes;
 };
 
-/* "cvcf.pyx":221
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":221
  * 
  * 
  * cdef class asVCFRecord( ctabix.Parser ):             # <<<<<<<<<<<<<<
@@ -439,7 +410,7 @@ struct __pyx_obj_4cvcf_asVCFRecord {
   PyObject *vcffile;
 };
 
-/* "ctabix.pxd":172
+/* "pysam/ctabix.pxd":172
  *   # char *ti_iter_read(BGZF *fp, ti_iter_t iter, int *len)
  * 
  * cdef class Tabixfile:             # <<<<<<<<<<<<<<
@@ -454,7 +425,7 @@ struct __pyx_obj_6ctabix_Tabixfile {
 };
 
 
-/* "TabProxies.pxd":42
+/* "pysam/TabProxies.pxd":42
  *   ctypedef int uint64_t
  * 
  * cdef class TupleProxy:             # <<<<<<<<<<<<<<
@@ -472,7 +443,7 @@ struct __pyx_vtabstruct_10TabProxies_TupleProxy {
 static struct __pyx_vtabstruct_10TabProxies_TupleProxy *__pyx_vtabptr_10TabProxies_TupleProxy;
 
 
-/* "TabProxies.pxd":77
+/* "pysam/TabProxies.pxd":77
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class NamedTupleProxy( TupleProxy) :             # <<<<<<<<<<<<<<
@@ -486,7 +457,7 @@ struct __pyx_vtabstruct_10TabProxies_NamedTupleProxy {
 static struct __pyx_vtabstruct_10TabProxies_NamedTupleProxy *__pyx_vtabptr_10TabProxies_NamedTupleProxy;
 
 
-/* "TabProxies.pxd":91
+/* "pysam/TabProxies.pxd":91
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class VCFProxy( NamedTupleProxy) :             # <<<<<<<<<<<<<<
@@ -500,7 +471,7 @@ struct __pyx_vtabstruct_10TabProxies_VCFProxy {
 static struct __pyx_vtabstruct_10TabProxies_VCFProxy *__pyx_vtabptr_10TabProxies_VCFProxy;
 
 
-/* "TabProxies.pxd":60
+/* "pysam/TabProxies.pxd":60
  *     cdef update( self, char * buffer, size_t nbytes )
  * 
  * cdef class GTFProxy( TupleProxy) :             # <<<<<<<<<<<<<<
@@ -514,7 +485,7 @@ struct __pyx_vtabstruct_10TabProxies_GTFProxy {
 static struct __pyx_vtabstruct_10TabProxies_GTFProxy *__pyx_vtabptr_10TabProxies_GTFProxy;
 
 
-/* "cvcf.pyx":94
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":94
  * ###########################################################################################################
  * 
  * cdef class VCFRecord( TabProxies.TupleProxy):             # <<<<<<<<<<<<<<
@@ -528,7 +499,7 @@ struct __pyx_vtabstruct_4cvcf_VCFRecord {
 static struct __pyx_vtabstruct_4cvcf_VCFRecord *__pyx_vtabptr_4cvcf_VCFRecord;
 
 
-/* "TabProxies.pxd":80
+/* "pysam/TabProxies.pxd":80
  *     pass
  * 
  * cdef class BedProxy( NamedTupleProxy) :             # <<<<<<<<<<<<<<
@@ -589,12 +560,12 @@ static struct __pyx_vtabstruct_10TabProxies_BedProxy *__pyx_vtabptr_10TabProxies
 
 static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name); /*proto*/
 
-static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
-    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found); /*proto*/
-
 static void __Pyx_RaiseDoubleKeywordsError(
     const char* func_name, PyObject* kw_name); /*proto*/
 
+static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
+    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found); /*proto*/
+
 static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject **argnames[],     PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,     const char* function_name); /*proto*/
 
 
@@ -673,11 +644,6 @@ static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i)
 
 static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb); /*proto*/
 
-static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
-static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb); /*proto*/
-
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
-
 static double __Pyx__PyObject_AsDouble(PyObject* obj); /* proto */
 
 #define __Pyx_PyObject_AsDouble(obj) \
@@ -686,6 +652,7 @@ static double __Pyx__PyObject_AsDouble(PyObject* obj); /* proto */
 
 static CYTHON_INLINE void __Pyx_RaiseNoneIndexingError(void);
 
+
 #if PY_MAJOR_VERSION >= 3
 static PyObject *__Pyx_PyDict_GetItem(PyObject *d, PyObject* key) {
     PyObject *value;
@@ -856,24 +823,12 @@ static void __Pyx_ExceptionReset(PyObject *type, PyObject *value, PyObject *tb);
 
 static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list); /*proto*/
 
-static PyObject *__Pyx_FindPy2Metaclass(PyObject *bases); /*proto*/
-
-static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name,
-                                   PyObject *modname); /*proto*/
+static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name, const char *modname); /*proto*/
 
-#define __pyx_binding_PyCFunctionType_USED 1
-
-typedef struct {
-    PyCFunctionObject func;
-} __pyx_binding_PyCFunctionType_object;
-
-static PyTypeObject __pyx_binding_PyCFunctionType_type;
-static PyTypeObject *__pyx_binding_PyCFunctionType = NULL;
-
-static PyObject *__pyx_binding_PyCFunctionType_NewEx(PyMethodDef *ml, PyObject *self, PyObject *module); /* proto */
-#define __pyx_binding_PyCFunctionType_New(ml, self) __pyx_binding_PyCFunctionType_NewEx(ml, self, NULL)
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb); /*proto*/
 
-static int __pyx_binding_PyCFunctionType_init(void); /* proto */
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
 
 static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_uint32_t(uint32_t);
 
@@ -913,7 +868,7 @@ static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class
 
 static PyObject *__Pyx_ImportModule(const char *name); /*proto*/
 
-static void* __Pyx_GetVtable(PyObject *dict); /*proto*/
+static int __Pyx_GetVtable(PyObject *dict, void *vtabptr); /*proto*/
 
 static int __Pyx_SetVtable(PyObject *dict, void *vtable); /*proto*/
 
@@ -936,7 +891,7 @@ static PyTypeObject *__pyx_ptype_10TabProxies_VCFProxy = 0;
 static PyTypeObject *__pyx_ptype_4cvcf_VCFRecord = 0;
 static PyTypeObject *__pyx_ptype_4cvcf_asVCFRecord = 0;
 #define __Pyx_MODULE_NAME "cvcf"
-static int __pyx_module_is_main_cvcf = 0;
+int __pyx_module_is_main_cvcf = 0;
 
 /* Implementation of cvcf */
 static PyObject *__pyx_builtin_object;
@@ -952,108 +907,126 @@ static PyObject *__pyx_builtin_KeyError;
 static PyObject *__pyx_builtin_NotImplementedError;
 static char __pyx_k_1[] = "";
 static char __pyx_k_2[] = ",";
-static char __pyx_k_4[] = ":";
-static char __pyx_k_6[] = "-";
-static char __pyx_k_8[] = "Don't understand region string '%s'";
-static char __pyx_k_9[] = ".";
-static char __pyx_k_11[] = ";";
-static char __pyx_k_14[] = "=";
-static char __pyx_k_18[] = "BAD_NUMBER_OF_VALUES";
-static char __pyx_k_19[] = "(found %s values in element %s; expected %s)";
-static char __pyx_k_20[] = "BAD_NUMBER_OF_PARAMETERS";
-static char __pyx_k_21[] = "id=%s, expected %s parameters, got %s";
-static char __pyx_k_25[] = "Line %s: '%s'\n%s %s: %s\n";
-static char __pyx_k_27[] = "<";
-static char __pyx_k_29[] = "V40_MISSING_ANGLE_BRACKETS";
-static char __pyx_k_30[] = ">";
-static char __pyx_k_34[] = "\"";
-static char __pyx_k_38[] = "V40_FORMAT_MUST_HAVE_NAMED_FIELDS";
-static char __pyx_k_39[] = "BADLY_FORMATTED_FORMAT_STRING";
-static char __pyx_k_40[] = "ID=";
-static char __pyx_k_41[] = "Number=";
-static char __pyx_k_42[] = "Type=";
-static char __pyx_k_43[] = "Description=";
-static char __pyx_k_52[] = "FORMAT_MISSING_QUOTES";
-static char __pyx_k_55[] = "<none>";
-static char __pyx_k_56[] = "#alleles";
-static char __pyx_k_57[] = "#nonref_alleles";
-static char __pyx_k_58[] = "#genotypes";
-static char __pyx_k_59[] = "#phased_genotypes";
-static char __pyx_k_61[] = "Unknown number type encountered: %s";
-static char __pyx_k_62[] = "%s=%s";
-static char __pyx_k_63[] = "(Undefined tag)";
-static char __pyx_k_66[] = "(output)";
-static char __pyx_k_69[] = "Genotype Quality";
-static char __pyx_k_70[] = "Read depth at this position for this sample";
-static char __pyx_k_71[] = "Haplotype Quality";
-static char __pyx_k_72[] = "Sample Genotype Filter";
-static char __pyx_k_73[] = "##";
-static char __pyx_k_76[] = "VCFv3.3";
-static char __pyx_k_77[] = "VCFv4.0";
-static char __pyx_k_78[] = "VCFv4.1";
-static char __pyx_k_79[] = "UNKNOWN_FORMAT_STRING";
-static char __pyx_k_80[] = "##fileformat=VCFv%s.%s\n";
-static char __pyx_k_81[] = "##%s=%s\n";
-static char __pyx_k_82[] = "#";
-static char __pyx_k_85[] = "\t";
-static char __pyx_k_87[] = "HEADING_NOT_SEPARATED_BY_TABS";
-static char __pyx_k_88[] = "(%sth entry not found)";
-static char __pyx_k_89[] = "(found %s, expected %s)";
-static char __pyx_k_90[] = "BADLY_FORMATTED_HEADING";
-static char __pyx_k_91[] = "\n";
-static char __pyx_k_92[] = "|";
-static char __pyx_k_93[] = "ERROR_FLAG_HAS_VALUE";
-static char __pyx_k_97[] = "ERROR_FORMAT_NOT_NUMERICAL";
-static char __pyx_k_98[] = "ERROR_FORMAT_NOT_CHAR";
+static char __pyx_k_3[] = ":";
+static char __pyx_k_4[] = "-";
+static char __pyx_k_5[] = "Don't understand region string '%s'";
+static char __pyx_k_6[] = ".";
+static char __pyx_k_7[] = ";";
+static char __pyx_k_8[] = "=";
+static char __pyx_k_9[] = "BAD_NUMBER_OF_VALUES";
+static char __pyx_k_10[] = "(found %s values in element %s; expected %s)";
+static char __pyx_k_11[] = "BAD_NUMBER_OF_PARAMETERS";
+static char __pyx_k_12[] = "id=%s, expected %s parameters, got %s";
+static char __pyx_k_14[] = "Line %s: '%s'\n%s %s: %s\n";
+static char __pyx_k_16[] = "<";
+static char __pyx_k_17[] = "V40_MISSING_ANGLE_BRACKETS";
+static char __pyx_k_18[] = ">";
+static char __pyx_k_19[] = "\"";
+static char __pyx_k_20[] = "V40_FORMAT_MUST_HAVE_NAMED_FIELDS";
+static char __pyx_k_21[] = "BADLY_FORMATTED_FORMAT_STRING";
+static char __pyx_k_22[] = "ID=";
+static char __pyx_k_23[] = "Number=";
+static char __pyx_k_24[] = "Type=";
+static char __pyx_k_25[] = "Description=";
+static char __pyx_k_26[] = "FORMAT_MISSING_QUOTES";
+static char __pyx_k_27[] = "<none>";
+static char __pyx_k_28[] = "#alleles";
+static char __pyx_k_29[] = "#nonref_alleles";
+static char __pyx_k_30[] = "#genotypes";
+static char __pyx_k_31[] = "#phased_genotypes";
+static char __pyx_k_33[] = "Unknown number type encountered: %s";
+static char __pyx_k_34[] = "%s=%s";
+static char __pyx_k_35[] = "(Undefined tag)";
+static char __pyx_k_38[] = "(output)";
+static char __pyx_k_39[] = "Genotype Quality";
+static char __pyx_k_40[] = "Read depth at this position for this sample";
+static char __pyx_k_41[] = "Haplotype Quality";
+static char __pyx_k_42[] = "Sample Genotype Filter";
+static char __pyx_k_43[] = "##";
+static char __pyx_k_44[] = "VCFv3.3";
+static char __pyx_k_45[] = "VCFv4.0";
+static char __pyx_k_46[] = "VCFv4.1";
+static char __pyx_k_47[] = "UNKNOWN_FORMAT_STRING";
+static char __pyx_k_48[] = "##fileformat=VCFv%s.%s\n";
+static char __pyx_k_49[] = "##%s=%s\n";
+static char __pyx_k_50[] = "#";
+static char __pyx_k_51[] = "\t";
+static char __pyx_k_52[] = "HEADING_NOT_SEPARATED_BY_TABS";
+static char __pyx_k_53[] = "(%sth entry not found)";
+static char __pyx_k_54[] = "(found %s, expected %s)";
+static char __pyx_k_55[] = "BADLY_FORMATTED_HEADING";
+static char __pyx_k_56[] = "\n";
+static char __pyx_k_57[] = "|";
+static char __pyx_k_58[] = "ERROR_FLAG_HAS_VALUE";
+static char __pyx_k_59[] = "ERROR_FORMAT_NOT_NUMERICAL";
+static char __pyx_k_60[] = "ERROR_FORMAT_NOT_CHAR";
+static char __pyx_k_62[] = "BAD_NUMBER_OF_COLUMNS";
+static char __pyx_k_63[] = "expected %s for %s samples (%s), got %s";
+static char __pyx_k_64[] = "(reference is %s, VCF says %s)";
+static char __pyx_k_65[] = "V33_UNMATCHED_DELETION";
+static char __pyx_k_66[] = "(deletion is %s, reference is %s)";
+static char __pyx_k_67[] = "MISSING_INDEL_ALLELE_REF_BASE";
+static char __pyx_k_68[] = "Required key %s not found in data";
+static char __pyx_k_69[] = "enter_default_format";
+static char __pyx_k_70[] = "Can only handle v3.3 and v4.0 VCF files";
+static char __pyx_k_71[] = "Invalid error string: %s";
+static char __pyx_k_72[] = "needs to be checked";
+static char __pyx_k_73[] = "[|/\\\\]";
+static char __pyx_k_74[] = "^[ACGTN]+$";
+static char __pyx_k_75[] = "id numbertype number type description missingvalue";
+static char __pyx_k_76[] = "UNKNOWN_FORMAT_STRING:Unknown file format identifier";
+static char __pyx_k_77[] = "BADLY_FORMATTED_FORMAT_STRING:Formatting error in the format string";
+static char __pyx_k_78[] = "BADLY_FORMATTED_HEADING:Did not find 9 required headings (CHROM, POS, ..., FORMAT) %s";
+static char __pyx_k_79[] = "BAD_NUMBER_OF_COLUMNS:Wrong number of columns found (%s)";
+static char __pyx_k_80[] = "POS_NOT_NUMERICAL:Position column is not numerical";
+static char __pyx_k_81[] = "UNKNOWN_CHAR_IN_REF:Unknown character in reference field";
+static char __pyx_k_82[] = "V33_BAD_REF:Reference should be single-character in v3.3 VCF";
+static char __pyx_k_83[] = "V33_BAD_ALLELE:Cannot interpret allele for v3.3 VCF";
+static char __pyx_k_84[] = "POS_NOT_POSITIVE:Position field must be >0";
+static char __pyx_k_85[] = "QUAL_NOT_NUMERICAL:Quality field must be numerical, or '.'";
+static char __pyx_k_86[] = "ERROR_INFO_STRING:Error while parsing info field";
+static char __pyx_k_87[] = "ERROR_UNKNOWN_KEY:Unknown key (%s) found in formatted field (info; format; or filter)";
+static char __pyx_k_88[] = "ERROR_FORMAT_NOT_NUMERICAL:Expected integer or float in formatted field; got %s";
+static char __pyx_k_89[] = "ERROR_FORMAT_NOT_CHAR:Eexpected character in formatted field; got string";
+static char __pyx_k_90[] = "FILTER_NOT_DEFINED:Identifier (%s) in filter found which was not defined in header";
+static char __pyx_k_91[] = "FORMAT_NOT_DEFINED:Identifier (%s) in format found which was not defined in header";
+static char __pyx_k_92[] = "BAD_NUMBER_OF_VALUES:Found too many of values in sample column (%s)";
+static char __pyx_k_93[] = "BAD_NUMBER_OF_PARAMETERS:Found unexpected number of parameters (%s)";
+static char __pyx_k_94[] = "BAD_GENOTYPE:Cannot parse genotype (%s)";
+static char __pyx_k_95[] = "V40_BAD_ALLELE:Bad allele found for v4.0 VCF (%s)";
+static char __pyx_k_96[] = "MISSING_REF:Reference allele missing";
+static char __pyx_k_97[] = "V33_UNMATCHED_DELETION:Deleted sequence does not match reference (%s)";
+static char __pyx_k_98[] = "V40_MISSING_ANGLE_BRACKETS:Format definition is not deliminted by angular brackets";
+static char __pyx_k_99[] = "FORMAT_MISSING_QUOTES:Description field in format definition is not surrounded by quotes";
 static char __pyx_k__0[] = "0";
 static char __pyx_k__D[] = "D";
 static char __pyx_k__I[] = "I";
 static char __pyx_k__N[] = "N";
-static char __pyx_k_101[] = "BAD_NUMBER_OF_COLUMNS";
-static char __pyx_k_102[] = "expected %s for %s samples (%s), got %s";
-static char __pyx_k_103[] = "(reference is %s, VCF says %s)";
-static char __pyx_k_111[] = "V33_UNMATCHED_DELETION";
-static char __pyx_k_112[] = "(deletion is %s, reference is %s)";
-static char __pyx_k_113[] = "MISSING_INDEL_ALLELE_REF_BASE";
-static char __pyx_k_115[] = "Required key %s not found in data";
-static char __pyx_k_118[] = "enter_default_format";
-static char __pyx_k_119[] = "Can only handle v3.3 and v4.0 VCF files";
-static char __pyx_k_121[] = "Invalid error string: %s";
-static char __pyx_k_122[] = "needs to be checked";
-static char __pyx_k_126[] = "[|/\\\\]";
-static char __pyx_k_128[] = "^[ACGTN]+$";
-static char __pyx_k_130[] = "id numbertype number type description missingvalue";
-static char __pyx_k_132[] = "UNKNOWN_FORMAT_STRING:Unknown file format identifier";
-static char __pyx_k_133[] = "BADLY_FORMATTED_FORMAT_STRING:Formatting error in the format string";
-static char __pyx_k_134[] = "BADLY_FORMATTED_HEADING:Did not find 9 required headings (CHROM, POS, ..., FORMAT) %s";
-static char __pyx_k_135[] = "BAD_NUMBER_OF_COLUMNS:Wrong number of columns found (%s)";
-static char __pyx_k_136[] = "POS_NOT_NUMERICAL:Position column is not numerical";
-static char __pyx_k_137[] = "UNKNOWN_CHAR_IN_REF:Unknown character in reference field";
-static char __pyx_k_138[] = "V33_BAD_REF:Reference should be single-character in v3.3 VCF";
-static char __pyx_k_139[] = "V33_BAD_ALLELE:Cannot interpret allele for v3.3 VCF";
-static char __pyx_k_140[] = "POS_NOT_POSITIVE:Position field must be >0";
-static char __pyx_k_141[] = "QUAL_NOT_NUMERICAL:Quality field must be numerical, or '.'";
-static char __pyx_k_142[] = "ERROR_INFO_STRING:Error while parsing info field";
-static char __pyx_k_143[] = "ERROR_UNKNOWN_KEY:Unknown key (%s) found in formatted field (info; format; or filter)";
-static char __pyx_k_144[] = "ERROR_FORMAT_NOT_NUMERICAL:Expected integer or float in formatted field; got %s";
-static char __pyx_k_145[] = "ERROR_FORMAT_NOT_CHAR:Eexpected character in formatted field; got string";
-static char __pyx_k_146[] = "FILTER_NOT_DEFINED:Identifier (%s) in filter found which was not defined in header";
-static char __pyx_k_147[] = "FORMAT_NOT_DEFINED:Identifier (%s) in format found which was not defined in header";
-static char __pyx_k_148[] = "BAD_NUMBER_OF_VALUES:Found too many of values in sample column (%s)";
-static char __pyx_k_149[] = "BAD_NUMBER_OF_PARAMETERS:Found unexpected number of parameters (%s)";
-static char __pyx_k_150[] = "BAD_GENOTYPE:Cannot parse genotype (%s)";
-static char __pyx_k_151[] = "V40_BAD_ALLELE:Bad allele found for v4.0 VCF (%s)";
-static char __pyx_k_152[] = "MISSING_REF:Reference allele missing";
-static char __pyx_k_153[] = "V33_UNMATCHED_DELETION:Deleted sequence does not match reference (%s)";
-static char __pyx_k_154[] = "V40_MISSING_ANGLE_BRACKETS:Format definition is not deliminted by angular brackets";
-static char __pyx_k_155[] = "FORMAT_MISSING_QUOTES:Description field in format definition is not surrounded by quotes";
-static char __pyx_k_156[] = "V40_FORMAT_MUST_HAVE_NAMED_FIELDS:Fields in v4.0 VCF format definition must have named fields";
-static char __pyx_k_157[] = "HEADING_NOT_SEPARATED_BY_TABS:Heading line appears separated by spaces, not tabs";
-static char __pyx_k_158[] = "WRONG_REF:Wrong reference %s";
-static char __pyx_k_159[] = "ERROR_TRAILING_DATA:Numerical field ('%s') has semicolon-separated trailing data";
-static char __pyx_k_160[] = "BAD_CHR_TAG:Error calculating chr tag for %s";
-static char __pyx_k_161[] = "ZERO_LENGTH_ALLELE:Found zero-length allele";
-static char __pyx_k_162[] = "MISSING_INDEL_ALLELE_REF_BASE:Indel alleles must begin with single reference base";
+static char __pyx_k_100[] = "V40_FORMAT_MUST_HAVE_NAMED_FIELDS:Fields in v4.0 VCF format definition must have named fields";
+static char __pyx_k_101[] = "HEADING_NOT_SEPARATED_BY_TABS:Heading line appears separated by spaces, not tabs";
+static char __pyx_k_102[] = "WRONG_REF:Wrong reference %s";
+static char __pyx_k_103[] = "ERROR_TRAILING_DATA:Numerical field ('%s') has semicolon-separated trailing data";
+static char __pyx_k_104[] = "BAD_CHR_TAG:Error calculating chr tag for %s";
+static char __pyx_k_105[] = "ZERO_LENGTH_ALLELE:Found zero-length allele";
+static char __pyx_k_106[] = "MISSING_INDEL_ALLELE_REF_BASE:Indel alleles must begin with single reference base";
+static char __pyx_k_107[] = "VCF.getsamples (line 880)";
+static char __pyx_k_108[] = "VCF.setsamples (line 884)";
+static char __pyx_k_109[] = "VCF.getheader (line 888)";
+static char __pyx_k_110[] = "VCF.setheader (line 892)";
+static char __pyx_k_111[] = "VCF.getinfo (line 896)";
+static char __pyx_k_112[] = "VCF.setinfo (line 900)";
+static char __pyx_k_113[] = "VCF.getformat (line 904)";
+static char __pyx_k_114[] = "VCF.setformat (line 908)";
+static char __pyx_k_115[] = "VCF.getfilter (line 912)";
+static char __pyx_k_116[] = "VCF.setfilter (line 916)";
+static char __pyx_k_117[] = "VCF.setreference (line 927)";
+static char __pyx_k_118[] = "VCF.parse (line 939)";
+static char __pyx_k_119[] = "VCF.write (line 946)";
+static char __pyx_k_120[] = "VCF.writeheader (line 952)";
+static char __pyx_k_121[] = "VCF.compare_calls (line 957)";
+static char __pyx_k_122[] = "VCF.connect (line 979)";
+static char __pyx_k_123[] = "VCF.fetch (line 984)";
+static char __pyx_k_124[] = "VCF.validate (line 993)";
 static char __pyx_k__DP[] = "DP";
 static char __pyx_k__FT[] = "FT";
 static char __pyx_k__GQ[] = "GQ";
@@ -1090,7 +1063,6 @@ static char __pyx_k__Type[] = "Type";
 static char __pyx_k__alt1[] = "alt1";
 static char __pyx_k__alt2[] = "alt2";
 static char __pyx_k__copy[] = "copy";
-static char __pyx_k__cvcf[] = "cvcf";
 static char __pyx_k__data[] = "data";
 static char __pyx_k__find[] = "find";
 static char __pyx_k__info[] = "info";
@@ -1133,7 +1105,6 @@ static char __pyx_k__Number[] = "Number";
 static char __pyx_k__String[] = "String";
 static char __pyx_k___lines[] = "_lines";
 static char __pyx_k___parse[] = "_parse";
-static char __pyx_k__append[] = "append";
 static char __pyx_k__bisect[] = "bisect";
 static char __pyx_k__buffer[] = "buffer";
 static char __pyx_k__contig[] = "contig";
@@ -1251,7 +1222,6 @@ static char __pyx_k__convertGTback[] = "convertGTback";
 static char __pyx_k__datagenerator[] = "datagenerator";
 static char __pyx_k__format_format[] = "format_format";
 static char __pyx_k__parse_heading[] = "parse_heading";
-static char __pyx_k__parse_regions[] = "parse_regions";
 static char __pyx_k__write_heading[] = "write_heading";
 static char __pyx_k__V33_BAD_ALLELE[] = "V33_BAD_ALLELE";
 static char __pyx_k__V40_BAD_ALLELE[] = "V40_BAD_ALLELE";
@@ -1273,107 +1243,124 @@ static char __pyx_k__NT_PHASED_GENOTYPES[] = "NT_PHASED_GENOTYPES";
 static char __pyx_k__NotImplementedError[] = "NotImplementedError";
 static char __pyx_k__UNKNOWN_CHAR_IN_REF[] = "UNKNOWN_CHAR_IN_REF";
 static PyObject *__pyx_kp_s_1;
-static PyObject *__pyx_n_s_101;
+static PyObject *__pyx_kp_s_10;
+static PyObject *__pyx_kp_s_100;
+static PyObject *__pyx_kp_s_101;
 static PyObject *__pyx_kp_s_102;
 static PyObject *__pyx_kp_s_103;
-static PyObject *__pyx_kp_s_11;
-static PyObject *__pyx_n_s_111;
-static PyObject *__pyx_kp_s_112;
-static PyObject *__pyx_n_s_113;
-static PyObject *__pyx_kp_s_115;
-static PyObject *__pyx_n_s_118;
-static PyObject *__pyx_kp_s_119;
-static PyObject *__pyx_kp_s_121;
-static PyObject *__pyx_kp_s_122;
-static PyObject *__pyx_kp_s_126;
-static PyObject *__pyx_kp_s_128;
-static PyObject *__pyx_kp_s_130;
-static PyObject *__pyx_kp_s_132;
-static PyObject *__pyx_kp_s_133;
-static PyObject *__pyx_kp_s_134;
-static PyObject *__pyx_kp_s_135;
-static PyObject *__pyx_kp_s_136;
-static PyObject *__pyx_kp_s_137;
-static PyObject *__pyx_kp_s_138;
-static PyObject *__pyx_kp_s_139;
+static PyObject *__pyx_kp_s_104;
+static PyObject *__pyx_kp_s_105;
+static PyObject *__pyx_kp_s_106;
+static PyObject *__pyx_kp_u_107;
+static PyObject *__pyx_kp_u_108;
+static PyObject *__pyx_kp_u_109;
+static PyObject *__pyx_n_s_11;
+static PyObject *__pyx_kp_u_110;
+static PyObject *__pyx_kp_u_111;
+static PyObject *__pyx_kp_u_112;
+static PyObject *__pyx_kp_u_113;
+static PyObject *__pyx_kp_u_114;
+static PyObject *__pyx_kp_u_115;
+static PyObject *__pyx_kp_u_116;
+static PyObject *__pyx_kp_u_117;
+static PyObject *__pyx_kp_u_118;
+static PyObject *__pyx_kp_u_119;
+static PyObject *__pyx_kp_s_12;
+static PyObject *__pyx_kp_u_120;
+static PyObject *__pyx_kp_u_121;
+static PyObject *__pyx_kp_u_122;
+static PyObject *__pyx_kp_u_123;
+static PyObject *__pyx_kp_u_124;
 static PyObject *__pyx_kp_s_14;
-static PyObject *__pyx_kp_s_140;
-static PyObject *__pyx_kp_s_141;
-static PyObject *__pyx_kp_s_142;
-static PyObject *__pyx_kp_s_143;
-static PyObject *__pyx_kp_s_144;
-static PyObject *__pyx_kp_s_145;
-static PyObject *__pyx_kp_s_146;
-static PyObject *__pyx_kp_s_147;
-static PyObject *__pyx_kp_s_148;
-static PyObject *__pyx_kp_s_149;
-static PyObject *__pyx_kp_s_150;
-static PyObject *__pyx_kp_s_151;
-static PyObject *__pyx_kp_s_152;
-static PyObject *__pyx_kp_s_153;
-static PyObject *__pyx_kp_s_154;
-static PyObject *__pyx_kp_s_155;
-static PyObject *__pyx_kp_s_156;
-static PyObject *__pyx_kp_s_157;
-static PyObject *__pyx_kp_s_158;
-static PyObject *__pyx_kp_s_159;
-static PyObject *__pyx_kp_s_160;
-static PyObject *__pyx_kp_s_161;
-static PyObject *__pyx_kp_s_162;
-static PyObject *__pyx_n_s_18;
+static PyObject *__pyx_kp_s_16;
+static PyObject *__pyx_n_s_17;
+static PyObject *__pyx_kp_s_18;
 static PyObject *__pyx_kp_s_19;
 static PyObject *__pyx_kp_s_2;
 static PyObject *__pyx_n_s_20;
-static PyObject *__pyx_kp_s_21;
+static PyObject *__pyx_n_s_21;
+static PyObject *__pyx_kp_s_22;
+static PyObject *__pyx_kp_s_23;
+static PyObject *__pyx_kp_s_24;
 static PyObject *__pyx_kp_s_25;
+static PyObject *__pyx_n_s_26;
 static PyObject *__pyx_kp_s_27;
-static PyObject *__pyx_n_s_29;
+static PyObject *__pyx_kp_s_28;
+static PyObject *__pyx_kp_s_29;
+static PyObject *__pyx_kp_s_3;
 static PyObject *__pyx_kp_s_30;
+static PyObject *__pyx_kp_s_31;
+static PyObject *__pyx_kp_s_33;
 static PyObject *__pyx_kp_s_34;
-static PyObject *__pyx_n_s_38;
-static PyObject *__pyx_n_s_39;
+static PyObject *__pyx_kp_s_35;
+static PyObject *__pyx_kp_s_38;
+static PyObject *__pyx_kp_s_39;
 static PyObject *__pyx_kp_s_4;
 static PyObject *__pyx_kp_s_40;
 static PyObject *__pyx_kp_s_41;
 static PyObject *__pyx_kp_s_42;
 static PyObject *__pyx_kp_s_43;
+static PyObject *__pyx_kp_s_44;
+static PyObject *__pyx_kp_s_45;
+static PyObject *__pyx_kp_s_46;
+static PyObject *__pyx_n_s_47;
+static PyObject *__pyx_kp_s_48;
+static PyObject *__pyx_kp_s_49;
+static PyObject *__pyx_kp_s_5;
+static PyObject *__pyx_kp_s_50;
+static PyObject *__pyx_kp_s_51;
 static PyObject *__pyx_n_s_52;
-static PyObject *__pyx_kp_s_55;
+static PyObject *__pyx_kp_s_53;
+static PyObject *__pyx_kp_s_54;
+static PyObject *__pyx_n_s_55;
 static PyObject *__pyx_kp_s_56;
 static PyObject *__pyx_kp_s_57;
-static PyObject *__pyx_kp_s_58;
-static PyObject *__pyx_kp_s_59;
+static PyObject *__pyx_n_s_58;
+static PyObject *__pyx_n_s_59;
+static PyObject *__pyx_kp_b_6;
 static PyObject *__pyx_kp_s_6;
-static PyObject *__pyx_kp_s_61;
-static PyObject *__pyx_kp_s_62;
+static PyObject *__pyx_n_s_60;
+static PyObject *__pyx_n_s_62;
 static PyObject *__pyx_kp_s_63;
+static PyObject *__pyx_kp_s_64;
+static PyObject *__pyx_n_s_65;
 static PyObject *__pyx_kp_s_66;
-static PyObject *__pyx_kp_s_69;
+static PyObject *__pyx_n_s_67;
+static PyObject *__pyx_kp_s_68;
+static PyObject *__pyx_n_s_69;
+static PyObject *__pyx_kp_s_7;
 static PyObject *__pyx_kp_s_70;
 static PyObject *__pyx_kp_s_71;
 static PyObject *__pyx_kp_s_72;
 static PyObject *__pyx_kp_s_73;
+static PyObject *__pyx_kp_s_74;
+static PyObject *__pyx_kp_s_75;
 static PyObject *__pyx_kp_s_76;
 static PyObject *__pyx_kp_s_77;
 static PyObject *__pyx_kp_s_78;
-static PyObject *__pyx_n_s_79;
+static PyObject *__pyx_kp_s_79;
 static PyObject *__pyx_kp_s_8;
 static PyObject *__pyx_kp_s_80;
 static PyObject *__pyx_kp_s_81;
 static PyObject *__pyx_kp_s_82;
+static PyObject *__pyx_kp_s_83;
+static PyObject *__pyx_kp_s_84;
 static PyObject *__pyx_kp_s_85;
-static PyObject *__pyx_n_s_87;
+static PyObject *__pyx_kp_s_86;
+static PyObject *__pyx_kp_s_87;
 static PyObject *__pyx_kp_s_88;
 static PyObject *__pyx_kp_s_89;
-static PyObject *__pyx_kp_b_9;
-static PyObject *__pyx_kp_s_9;
-static PyObject *__pyx_n_s_90;
+static PyObject *__pyx_n_s_9;
+static PyObject *__pyx_kp_s_90;
 static PyObject *__pyx_kp_s_91;
 static PyObject *__pyx_kp_s_92;
-static PyObject *__pyx_n_s_93;
-static PyObject *__pyx_n_s_97;
-static PyObject *__pyx_n_s_98;
-static PyObject *__pyx_kp_b__0;
+static PyObject *__pyx_kp_s_93;
+static PyObject *__pyx_kp_s_94;
+static PyObject *__pyx_kp_s_95;
+static PyObject *__pyx_kp_s_96;
+static PyObject *__pyx_kp_s_97;
+static PyObject *__pyx_kp_s_98;
+static PyObject *__pyx_kp_s_99;
 static PyObject *__pyx_kp_s__0;
 static PyObject *__pyx_n_s__ACGTN;
 static PyObject *__pyx_n_s__ALT;
@@ -1415,7 +1402,6 @@ static PyObject *__pyx_n_s__NT_PHASED_GENOTYPES;
 static PyObject *__pyx_n_s__NT_UNKNOWN;
 static PyObject *__pyx_n_s__NotImplementedError;
 static PyObject *__pyx_n_s__Number;
-static PyObject *__pyx_n_b__PASS;
 static PyObject *__pyx_n_s__PASS;
 static PyObject *__pyx_n_s__POS;
 static PyObject *__pyx_n_s__POS_NOT_NUMERICAL;
@@ -1468,7 +1454,6 @@ static PyObject *__pyx_n_s__alleleRegEx;
 static PyObject *__pyx_n_s__alt;
 static PyObject *__pyx_n_s__alt1;
 static PyObject *__pyx_n_s__alt2;
-static PyObject *__pyx_n_s__append;
 static PyObject *__pyx_n_s__bisect;
 static PyObject *__pyx_n_s__buffer;
 static PyObject *__pyx_n_s__chrom;
@@ -1480,7 +1465,6 @@ static PyObject *__pyx_n_s__contig;
 static PyObject *__pyx_n_s__convertGT;
 static PyObject *__pyx_n_s__convertGTback;
 static PyObject *__pyx_n_s__copy;
-static PyObject *__pyx_n_s__cvcf;
 static PyObject *__pyx_n_s__data;
 static PyObject *__pyx_n_s__datagenerator;
 static PyObject *__pyx_n_s__deepcopy;
@@ -1547,7 +1531,6 @@ static PyObject *__pyx_n_s__parse_format;
 static PyObject *__pyx_n_s__parse_formatdata;
 static PyObject *__pyx_n_s__parse_header;
 static PyObject *__pyx_n_s__parse_heading;
-static PyObject *__pyx_n_s__parse_regions;
 static PyObject *__pyx_n_s__parser;
 static PyObject *__pyx_n_s__pos;
 static PyObject *__pyx_n_s__pos1;
@@ -1633,70 +1616,14 @@ static PyObject *__pyx_int_33;
 static PyObject *__pyx_int_40;
 static PyObject *__pyx_int_100;
 static PyObject *__pyx_int_3000000000;
-static PyObject *__pyx_k_22;
-static PyObject *__pyx_k_26;
-static PyObject *__pyx_k_60;
-static PyObject *__pyx_k_64;
-static PyObject *__pyx_k_65;
-static PyObject *__pyx_k_99;
-static PyObject *__pyx_k_tuple_3;
-static PyObject *__pyx_k_tuple_5;
-static PyObject *__pyx_k_tuple_7;
-static PyObject *__pyx_k_tuple_10;
-static PyObject *__pyx_k_tuple_12;
-static PyObject *__pyx_k_tuple_13;
-static PyObject *__pyx_k_tuple_15;
-static PyObject *__pyx_k_tuple_16;
-static PyObject *__pyx_k_tuple_17;
-static PyObject *__pyx_k_tuple_23;
-static PyObject *__pyx_k_tuple_24;
-static PyObject *__pyx_k_tuple_28;
-static PyObject *__pyx_k_tuple_31;
-static PyObject *__pyx_k_tuple_32;
-static PyObject *__pyx_k_tuple_33;
-static PyObject *__pyx_k_tuple_35;
-static PyObject *__pyx_k_tuple_36;
-static PyObject *__pyx_k_tuple_37;
-static PyObject *__pyx_k_tuple_44;
-static PyObject *__pyx_k_tuple_45;
-static PyObject *__pyx_k_tuple_46;
-static PyObject *__pyx_k_tuple_47;
-static PyObject *__pyx_k_tuple_48;
-static PyObject *__pyx_k_tuple_49;
-static PyObject *__pyx_k_tuple_50;
-static PyObject *__pyx_k_tuple_51;
-static PyObject *__pyx_k_tuple_53;
-static PyObject *__pyx_k_tuple_54;
-static PyObject *__pyx_k_tuple_67;
-static PyObject *__pyx_k_tuple_68;
-static PyObject *__pyx_k_tuple_74;
-static PyObject *__pyx_k_tuple_75;
-static PyObject *__pyx_k_tuple_83;
-static PyObject *__pyx_k_tuple_84;
-static PyObject *__pyx_k_tuple_86;
-static PyObject *__pyx_k_tuple_94;
-static PyObject *__pyx_k_tuple_95;
-static PyObject *__pyx_k_tuple_96;
-static PyObject *__pyx_k_tuple_100;
-static PyObject *__pyx_k_tuple_104;
-static PyObject *__pyx_k_tuple_105;
-static PyObject *__pyx_k_tuple_106;
-static PyObject *__pyx_k_tuple_107;
-static PyObject *__pyx_k_tuple_108;
-static PyObject *__pyx_k_tuple_109;
-static PyObject *__pyx_k_tuple_110;
-static PyObject *__pyx_k_tuple_114;
-static PyObject *__pyx_k_tuple_116;
-static PyObject *__pyx_k_tuple_117;
-static PyObject *__pyx_k_tuple_120;
-static PyObject *__pyx_k_tuple_123;
-static PyObject *__pyx_k_tuple_124;
-static PyObject *__pyx_k_tuple_125;
-static PyObject *__pyx_k_tuple_127;
-static PyObject *__pyx_k_tuple_129;
-static PyObject *__pyx_k_tuple_131;
-
-/* "cvcf.pyx":58
+static PyObject *__pyx_k_13;
+static PyObject *__pyx_k_15;
+static PyObject *__pyx_k_32;
+static PyObject *__pyx_k_36;
+static PyObject *__pyx_k_37;
+static PyObject *__pyx_k_61;
+
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":58
  * 
  * # Utility function.  Uses 0-based coordinates
  * def get_sequence(chrom, start, end, fa):             # <<<<<<<<<<<<<<
@@ -1705,7 +1632,6 @@ static PyObject *__pyx_k_tuple_131;
  */
 
 static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_get_sequence = {__Pyx_NAMESTR("get_sequence"), (PyCFunction)__pyx_pf_4cvcf_get_sequence, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
 static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_chrom = 0;
   PyObject *__pyx_v_start = 0;
@@ -1783,7 +1709,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_sequence = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":60
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":60
  * def get_sequence(chrom, start, end, fa):
  *     # obtain sequence from .fa file, without truncation
  *     if end<=start: return ""             # <<<<<<<<<<<<<<
@@ -1803,7 +1729,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":61
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":61
  *     # obtain sequence from .fa file, without truncation
  *     if end<=start: return ""
  *     if not fa: return "N"*(end-start)             # <<<<<<<<<<<<<<
@@ -1826,7 +1752,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   }
   __pyx_L7:;
 
-  /* "cvcf.pyx":62
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":62
  *     if end<=start: return ""
  *     if not fa: return "N"*(end-start)
  *     if start<0: return "N"*(-start) + get_sequence(chrom, 0, end, fa).upper()             # <<<<<<<<<<<<<<
@@ -1847,7 +1773,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
     __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_5 = PyTuple_New(4); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_INCREF(__pyx_v_chrom);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_chrom);
     __Pyx_GIVEREF(__pyx_v_chrom);
@@ -1860,10 +1786,10 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
     __Pyx_INCREF(__pyx_v_fa);
     PyTuple_SET_ITEM(__pyx_t_5, 3, __pyx_v_fa);
     __Pyx_GIVEREF(__pyx_v_fa);
-    __pyx_t_6 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Call(__pyx_t_4, __pyx_t_5, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __pyx_t_5 = PyObject_GetAttr(__pyx_t_6, __pyx_n_s__upper); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 62; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
@@ -1881,7 +1807,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":63
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":63
  *     if not fa: return "N"*(end-start)
  *     if start<0: return "N"*(-start) + get_sequence(chrom, 0, end, fa).upper()
  *     sequence = fa.fetch(chrom, start, end).upper()             # <<<<<<<<<<<<<<
@@ -1891,7 +1817,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   __pyx_t_5 = PyObject_GetAttr(__pyx_v_fa, __pyx_n_s__fetch); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __pyx_t_6 = PyTuple_New(3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+  __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(__pyx_v_chrom);
   PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_chrom);
   __Pyx_GIVEREF(__pyx_v_chrom);
@@ -1901,10 +1827,10 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   __Pyx_INCREF(__pyx_v_end);
   PyTuple_SET_ITEM(__pyx_t_6, 2, __pyx_v_end);
   __Pyx_GIVEREF(__pyx_v_end);
-  __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_5, __pyx_t_6, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
   __pyx_t_6 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__upper); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 63; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -1915,7 +1841,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   __pyx_v_sequence = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":64
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":64
  *     if start<0: return "N"*(-start) + get_sequence(chrom, 0, end, fa).upper()
  *     sequence = fa.fetch(chrom, start, end).upper()
  *     if len(sequence) < end-start: sequence += "N"*(end-start-len(sequence))             # <<<<<<<<<<<<<<
@@ -1956,7 +1882,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   }
   __pyx_L9:;
 
-  /* "cvcf.pyx":65
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":65
  *     sequence = fa.fetch(chrom, start, end).upper()
  *     if len(sequence) < end-start: sequence += "N"*(end-start-len(sequence))
  *     return sequence             # <<<<<<<<<<<<<<
@@ -1984,7 +1910,7 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
   return __pyx_r;
 }
 
-/* "cvcf.pyx":68
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":68
  * 
  * # Utility function.  Parses a region string
  * def parse_regions( string ):             # <<<<<<<<<<<<<<
@@ -1992,9 +1918,8 @@ static PyObject *__pyx_pf_4cvcf_get_sequence(PyObject *__pyx_self, PyObject *__p
  *     for r in string.split(','):
  */
 
-static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_1parse_regions = {__Pyx_NAMESTR("parse_regions"), (PyCFunction)__pyx_pf_4cvcf_1parse_regions, METH_O, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *__pyx_v_string) {
+static PyObject *__pyx_pf_4cvcf_parse_regions(PyObject *__pyx_self, PyObject *__pyx_v_string); /*proto*/
+static PyObject *__pyx_pf_4cvcf_parse_regions(PyObject *__pyx_self, PyObject *__pyx_v_string) {
   PyObject *__pyx_v_result;
   PyObject *__pyx_v_r;
   PyObject *__pyx_v_elts;
@@ -2015,7 +1940,7 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
   int __pyx_t_10;
   __Pyx_RefNannySetupContext("parse_regions");
   __pyx_self = __pyx_self;
-  __pyx_v_result = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_result = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_r = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_elts = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_chrom = Py_None; __Pyx_INCREF(Py_None);
@@ -2023,7 +1948,7 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
   __pyx_v_end = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_ielts = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":69
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":69
  * # Utility function.  Parses a region string
  * def parse_regions( string ):
  *     result = []             # <<<<<<<<<<<<<<
@@ -2036,7 +1961,7 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
   __pyx_v_result = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":70
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":70
  * def parse_regions( string ):
  *     result = []
  *     for r in string.split(','):             # <<<<<<<<<<<<<<
@@ -2045,75 +1970,87 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
  */
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_string, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_3), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_2));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+  __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (PyList_CheckExact(__pyx_t_3) || PyTuple_CheckExact(__pyx_t_3)) {
-    __pyx_t_2 = 0; __pyx_t_1 = __pyx_t_3; __Pyx_INCREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyList_CheckExact(__pyx_t_4) || PyTuple_CheckExact(__pyx_t_4)) {
+    __pyx_t_2 = 0; __pyx_t_3 = __pyx_t_4; __Pyx_INCREF(__pyx_t_3);
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-    __pyx_t_2 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
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-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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-    if (likely(PyList_CheckExact(__pyx_t_1))) {
-      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_1)) break;
-      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++;
-    } else if (likely(PyTuple_CheckExact(__pyx_t_1))) {
-      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
-      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_2); __Pyx_INCREF(__pyx_t_3); __pyx_t_2++;
+    if (likely(PyList_CheckExact(__pyx_t_3))) {
+      if (__pyx_t_2 >= PyList_GET_SIZE(__pyx_t_3)) break;
+      __pyx_t_4 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
+    } else if (likely(PyTuple_CheckExact(__pyx_t_3))) {
+      if (__pyx_t_2 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_2); __Pyx_INCREF(__pyx_t_4); __pyx_t_2++;
     } else {
-      __pyx_t_3 = PyIter_Next(__pyx_t_1);
-      if (!__pyx_t_3) {
+      __pyx_t_4 = PyIter_Next(__pyx_t_3);
+      if (!__pyx_t_4) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
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-      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_GOTREF(__pyx_t_4);
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     __Pyx_DECREF(__pyx_v_r);
-    __pyx_v_r = __pyx_t_3;
-    __pyx_t_3 = 0;
+    __pyx_v_r = __pyx_t_4;
+    __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":71
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":71
  *     result = []
  *     for r in string.split(','):
  *         elts = r.split(':')             # <<<<<<<<<<<<<<
  *         chrom, start, end = elts[0], 0, 3000000000
  *         if len(elts)==1: pass
  */
-    __pyx_t_3 = PyObject_GetAttr(__pyx_v_r, __pyx_n_s__split); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_3);
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_k_tuple_5), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_r, __pyx_n_s__split); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_3));
+    PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_3));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_3));
+    __pyx_t_5 = PyObject_Call(__pyx_t_4, __pyx_t_1, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_elts);
-    __pyx_v_elts = __pyx_t_4;
-    __pyx_t_4 = 0;
+    __pyx_v_elts = __pyx_t_5;
+    __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":72
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":72
  *     for r in string.split(','):
  *         elts = r.split(':')
  *         chrom, start, end = elts[0], 0, 3000000000             # <<<<<<<<<<<<<<
  *         if len(elts)==1: pass
  *         elif len(elts)==2:
  */
-    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = __pyx_int_0;
-    __Pyx_INCREF(__pyx_t_3);
-    __pyx_t_5 = __pyx_int_3000000000;
-    __Pyx_INCREF(__pyx_t_5);
+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 72; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_1 = __pyx_int_0;
+    __Pyx_INCREF(__pyx_t_1);
+    __pyx_t_4 = __pyx_int_3000000000;
+    __Pyx_INCREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_v_chrom);
-    __pyx_v_chrom = __pyx_t_4;
-    __pyx_t_4 = 0;
+    __pyx_v_chrom = __pyx_t_5;
+    __pyx_t_5 = 0;
     __Pyx_DECREF(__pyx_v_start);
-    __pyx_v_start = __pyx_t_3;
-    __pyx_t_3 = 0;
+    __pyx_v_start = __pyx_t_1;
+    __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_end);
-    __pyx_v_end = __pyx_t_5;
-    __pyx_t_5 = 0;
+    __pyx_v_end = __pyx_t_4;
+    __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":73
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":73
  *         elts = r.split(':')
  *         chrom, start, end = elts[0], 0, 3000000000
  *         if len(elts)==1: pass             # <<<<<<<<<<<<<<
@@ -2126,7 +2063,7 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":74
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":74
  *         chrom, start, end = elts[0], 0, 3000000000
  *         if len(elts)==1: pass
  *         elif len(elts)==2:             # <<<<<<<<<<<<<<
@@ -2137,40 +2074,46 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
     __pyx_t_7 = (__pyx_t_6 == 2);
     if (__pyx_t_7) {
 
-      /* "cvcf.pyx":75
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":75
  *         if len(elts)==1: pass
  *         elif len(elts)==2:
  *             if len(elts[1])>0:             # <<<<<<<<<<<<<<
  *                 ielts = elts[1].split('-')
  *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)
  */
-      __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 75; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_6 = PyObject_Length(__pyx_t_5); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 75; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 75; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_6 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 75; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_7 = (__pyx_t_6 > 0);
       if (__pyx_t_7) {
 
-        /* "cvcf.pyx":76
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":76
  *         elif len(elts)==2:
  *             if len(elts[1])>0:
  *                 ielts = elts[1].split('-')             # <<<<<<<<<<<<<<
  *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)
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-        __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_3 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__split); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_3);
-        __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __pyx_t_5 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_k_tuple_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_1 = PyObject_GetAttr(__pyx_t_4, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
+        PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_4));
+        __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
+        __pyx_t_5 = PyObject_Call(__pyx_t_1, __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __Pyx_DECREF(__pyx_v_ielts);
         __pyx_v_ielts = __pyx_t_5;
         __pyx_t_5 = 0;
 
-        /* "cvcf.pyx":77
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":77
  *             if len(elts[1])>0:
  *                 ielts = elts[1].split('-')
  *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)             # <<<<<<<<<<<<<<
@@ -2180,22 +2123,22 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
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         __pyx_t_7 = (__pyx_t_6 != 2);
         if (__pyx_t_7) {
-          __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_8), __pyx_v_r); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_5), __pyx_v_r); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-          __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-          PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_5));
+          __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_4);
+          PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_5));
           __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
           __pyx_t_5 = 0;
-          __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_5);
-          __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+          __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
           __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
           goto __pyx_L9;
         }
         __pyx_L9:;
 
-        /* "cvcf.pyx":78
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":78
  *                 ielts = elts[1].split('-')
  *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)
  *                 try:    start, end = int(ielts[0])-1, int(ielts[1])             # <<<<<<<<<<<<<<
@@ -2211,30 +2154,30 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
           /*try:*/ {
             __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_ielts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
             __Pyx_GOTREF(__pyx_t_5);
-            __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-            PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_5);
+            __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
+            __Pyx_GOTREF(__pyx_t_4);
+            PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
             __Pyx_GIVEREF(__pyx_t_5);
             __pyx_t_5 = 0;
-            __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
+            __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
             __Pyx_GOTREF(__pyx_t_5);
-            __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-            __pyx_t_3 = PyNumber_Subtract(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
-            __Pyx_GOTREF(__pyx_t_3);
+            __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+            __pyx_t_4 = PyNumber_Subtract(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
+            __Pyx_GOTREF(__pyx_t_4);
             __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
             __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_ielts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
             __Pyx_GOTREF(__pyx_t_5);
-            __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-            PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
+            __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
+            __Pyx_GOTREF(__pyx_t_1);
+            PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_5);
             __Pyx_GIVEREF(__pyx_t_5);
             __pyx_t_5 = 0;
-            __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
+            __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 78; __pyx_clineno = __LINE__; goto __pyx_L10_error;}
             __Pyx_GOTREF(__pyx_t_5);
-            __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+            __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
             __Pyx_DECREF(__pyx_v_start);
-            __pyx_v_start = __pyx_t_3;
-            __pyx_t_3 = 0;
+            __pyx_v_start = __pyx_t_4;
+            __pyx_t_4 = 0;
             __Pyx_DECREF(__pyx_v_end);
             __pyx_v_end = __pyx_t_5;
             __pyx_t_5 = 0;
@@ -2244,11 +2187,11 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
           __Pyx_XDECREF(__pyx_save_exc_tb); __pyx_save_exc_tb = 0;
           goto __pyx_L17_try_end;
           __pyx_L10_error:;
+          __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
           __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
-          __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-          /* "cvcf.pyx":79
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":79
  *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)
  *                 try:    start, end = int(ielts[0])-1, int(ielts[1])
  *                 except: raise ValueError("Don't understand region string '%s'" % r)             # <<<<<<<<<<<<<<
@@ -2257,26 +2200,26 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
  */
           /*except:*/ {
             __Pyx_AddTraceback("cvcf.parse_regions");
-            if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_3, &__pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
+            if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_4, &__pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
             __Pyx_GOTREF(__pyx_t_5);
-            __Pyx_GOTREF(__pyx_t_3);
             __Pyx_GOTREF(__pyx_t_4);
-            __pyx_t_8 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_8), __pyx_v_r); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
+            __Pyx_GOTREF(__pyx_t_1);
+            __pyx_t_8 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_5), __pyx_v_r); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
             __Pyx_GOTREF(((PyObject *)__pyx_t_8));
             __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+            __Pyx_GOTREF(__pyx_t_9);
             PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_t_8));
             __Pyx_GIVEREF(((PyObject *)__pyx_t_8));
             __pyx_t_8 = 0;
-            __pyx_t_8 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
+            __pyx_t_8 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_9, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
             __Pyx_GOTREF(__pyx_t_8);
-            __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+            __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
             __Pyx_Raise(__pyx_t_8, 0, 0);
             __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
             {__pyx_filename = __pyx_f[0]; __pyx_lineno = 79; __pyx_clineno = __LINE__; goto __pyx_L12_except_error;}
             __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-            __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+            __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
             goto __pyx_L11_exception_handled;
           }
           __pyx_L12_except_error:;
@@ -2299,30 +2242,30 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
     }
     /*else*/ {
 
-      /* "cvcf.pyx":81
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":81
  *                 except: raise ValueError("Don't understand region string '%s'" % r)
  *         else:
  *             raise ValueError("Don't understand region string '%s'" % r)             # <<<<<<<<<<<<<<
  *         result.append( (chrom,start,end) )
  *     return result
  */
-      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_8), __pyx_v_r); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-      PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_4));
-      __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
-      __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_5), __pyx_v_r); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-      __Pyx_Raise(__pyx_t_4, 0, 0);
+      PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_1));
+      __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
+      __pyx_t_1 = 0;
+      __pyx_t_1 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __Pyx_Raise(__pyx_t_1, 0, 0);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       {__pyx_filename = __pyx_f[0]; __pyx_lineno = 81; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     __pyx_L7:;
 
-    /* "cvcf.pyx":82
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":82
  *         else:
  *             raise ValueError("Don't understand region string '%s'" % r)
  *         result.append( (chrom,start,end) )             # <<<<<<<<<<<<<<
@@ -2332,23 +2275,23 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
     if (unlikely(__pyx_v_result == Py_None)) {
       PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
     }
-    __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+    __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(__pyx_v_chrom);
-    PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_chrom);
+    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_chrom);
     __Pyx_GIVEREF(__pyx_v_chrom);
     __Pyx_INCREF(__pyx_v_start);
-    PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_v_start);
+    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_start);
     __Pyx_GIVEREF(__pyx_v_start);
     __Pyx_INCREF(__pyx_v_end);
-    PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_end);
+    PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_v_end);
     __Pyx_GIVEREF(__pyx_v_end);
-    __pyx_t_10 = PyList_Append(__pyx_v_result, ((PyObject *)__pyx_t_4)); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+    __pyx_t_10 = PyList_Append(((PyObject *)__pyx_v_result), __pyx_t_1); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 82; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   }
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":83
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":83
  *             raise ValueError("Don't understand region string '%s'" % r)
  *         result.append( (chrom,start,end) )
  *     return result             # <<<<<<<<<<<<<<
@@ -2384,7 +2327,7 @@ static PyObject *__pyx_pf_4cvcf_1parse_regions(PyObject *__pyx_self, PyObject *_
   return __pyx_r;
 }
 
-/* "cvcf.pyx":104
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":104
  *     cdef uint32_t pos
  * 
  *     def __init__(self, vcf):             # <<<<<<<<<<<<<<
@@ -2430,7 +2373,7 @@ static int __pyx_pf_4cvcf_9VCFRecord___init__(PyObject *__pyx_v_self, PyObject *
   return -1;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":105
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":105
  * 
  *     def __init__(self, vcf):
  *         self.vcf = vcf             # <<<<<<<<<<<<<<
@@ -2448,7 +2391,7 @@ static int __pyx_pf_4cvcf_9VCFRecord___init__(PyObject *__pyx_v_self, PyObject *
   return __pyx_r;
 }
 
-/* "cvcf.pyx":115
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":115
  *         #                     len(data)))
  * 
  *     def __cinit__(self, vcf ):             # <<<<<<<<<<<<<<
@@ -2456,8 +2399,8 @@ static int __pyx_pf_4cvcf_9VCFRecord___init__(PyObject *__pyx_v_self, PyObject *
  *         self.offset = 9
  */
 
-static int __pyx_pf_4cvcf_9VCFRecord_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static int __pyx_pf_4cvcf_9VCFRecord_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static int __pyx_pf_4cvcf_9VCFRecord___cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static int __pyx_pf_4cvcf_9VCFRecord___cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_vcf = 0;
   int __pyx_r;
   static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__vcf,0};
@@ -2494,7 +2437,7 @@ static int __pyx_pf_4cvcf_9VCFRecord_1__cinit__(PyObject *__pyx_v_self, PyObject
   return -1;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":117
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":117
  *     def __cinit__(self, vcf ):
  *         # start indexed access at genotypes
  *         self.offset = 9             # <<<<<<<<<<<<<<
@@ -2503,7 +2446,7 @@ static int __pyx_pf_4cvcf_9VCFRecord_1__cinit__(PyObject *__pyx_v_self, PyObject
  */
   ((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_v_self)->__pyx_base.offset = 9;
 
-  /* "cvcf.pyx":119
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":119
  *         self.offset = 9
  * 
  *         self.vcf = vcf             # <<<<<<<<<<<<<<
@@ -2521,7 +2464,7 @@ static int __pyx_pf_4cvcf_9VCFRecord_1__cinit__(PyObject *__pyx_v_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":121
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":121
  *         self.vcf = vcf
  * 
  *     cdef update( self, char * buffer, size_t nbytes ):             # <<<<<<<<<<<<<<
@@ -2534,7 +2477,7 @@ static  PyObject *__pyx_f_4cvcf_9VCFRecord_update(struct __pyx_obj_4cvcf_VCFReco
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("update");
 
-  /* "cvcf.pyx":126
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":126
  *         nbytes does not include the terminal '\0'.
  *         '''
  *         TabProxies.TupleProxy.update( self, buffer, nbytes )             # <<<<<<<<<<<<<<
@@ -2545,7 +2488,7 @@ static  PyObject *__pyx_f_4cvcf_9VCFRecord_update(struct __pyx_obj_4cvcf_VCFReco
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":128
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":128
  *         TabProxies.TupleProxy.update( self, buffer, nbytes )
  * 
  *         self.contig = self.fields[0]             # <<<<<<<<<<<<<<
@@ -2554,7 +2497,7 @@ static  PyObject *__pyx_f_4cvcf_9VCFRecord_update(struct __pyx_obj_4cvcf_VCFReco
  */
   __pyx_v_self->contig = (__pyx_v_self->__pyx_base.fields[0]);
 
-  /* "cvcf.pyx":130
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":130
  *         self.contig = self.fields[0]
  *         # vcf counts from 1 - correct here
  *         self.pos = atoi( self.fields[1] ) - 1             # <<<<<<<<<<<<<<
@@ -2575,7 +2518,7 @@ static  PyObject *__pyx_f_4cvcf_9VCFRecord_update(struct __pyx_obj_4cvcf_VCFReco
   return __pyx_r;
 }
 
-/* "cvcf.pyx":132
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":132
  *         self.pos = atoi( self.fields[1] ) - 1
  * 
  *     def __len__(self):             # <<<<<<<<<<<<<<
@@ -2583,15 +2526,15 @@ static  PyObject *__pyx_f_4cvcf_9VCFRecord_update(struct __pyx_obj_4cvcf_VCFReco
  * 
  */
 
-static Py_ssize_t __pyx_pf_4cvcf_9VCFRecord_2__len__(PyObject *__pyx_v_self); /*proto*/
-static Py_ssize_t __pyx_pf_4cvcf_9VCFRecord_2__len__(PyObject *__pyx_v_self) {
+static Py_ssize_t __pyx_pf_4cvcf_9VCFRecord___len__(PyObject *__pyx_v_self); /*proto*/
+static Py_ssize_t __pyx_pf_4cvcf_9VCFRecord___len__(PyObject *__pyx_v_self) {
   Py_ssize_t __pyx_r;
   long __pyx_t_1;
   long __pyx_t_2;
   long __pyx_t_3;
   __Pyx_RefNannySetupContext("__len__");
 
-  /* "cvcf.pyx":133
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":133
  * 
  *     def __len__(self):
  *         return max(0, self.nfields - 9)             # <<<<<<<<<<<<<<
@@ -2614,7 +2557,7 @@ static Py_ssize_t __pyx_pf_4cvcf_9VCFRecord_2__len__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "cvcf.pyx":136
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":136
  * 
  *     property contig:
  *         def __get__(self): return self.contig             # <<<<<<<<<<<<<<
@@ -2646,7 +2589,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_6contig___get__(PyObject *__pyx_v_sel
   return __pyx_r;
 }
 
-/* "cvcf.pyx":139
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":139
  * 
  *     property pos:
  *         def __get__(self): return self.pos             # <<<<<<<<<<<<<<
@@ -2678,7 +2621,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3pos___get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "cvcf.pyx":142
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":142
  * 
  *     property id:
  *         def __get__(self): return self.fields[2]             # <<<<<<<<<<<<<<
@@ -2710,7 +2653,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_2id___get__(PyObject *__pyx_v_self) {
   return __pyx_r;
 }
 
-/* "cvcf.pyx":145
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":145
  * 
  *     property ref:
  *         def __get__(self): return self.fields[3]             # <<<<<<<<<<<<<<
@@ -2742,7 +2685,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3ref___get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "cvcf.pyx":148
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":148
  * 
  *     property alt:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -2757,10 +2700,11 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
   PyObject *__pyx_t_1 = NULL;
   int __pyx_t_2;
   PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_4 = NULL;
   __Pyx_RefNannySetupContext("__get__");
   __pyx_v_alt = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":150
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":150
  *         def __get__(self):
  *             # convert v3.3 to v4.0 alleles below
  *             alt = self.fields[4]             # <<<<<<<<<<<<<<
@@ -2773,14 +2717,14 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
   __pyx_v_alt = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":151
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":151
  *             # convert v3.3 to v4.0 alleles below
  *             alt = self.fields[4]
  *             if alt == ".": alt = []             # <<<<<<<<<<<<<<
  *             else: alt = alt.upper().split(',')
  *             return alt
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_alt, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_alt, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 151; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2794,7 +2738,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
   }
   /*else*/ {
 
-    /* "cvcf.pyx":152
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":152
  *             alt = self.fields[4]
  *             if alt == ".": alt = []
  *             else: alt = alt.upper().split(',')             # <<<<<<<<<<<<<<
@@ -2809,16 +2753,22 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
     __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_10), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+    PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_2));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+    __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_alt);
-    __pyx_v_alt = __pyx_t_3;
-    __pyx_t_3 = 0;
+    __pyx_v_alt = __pyx_t_4;
+    __pyx_t_4 = 0;
   }
   __pyx_L5:;
 
-  /* "cvcf.pyx":153
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":153
  *             if alt == ".": alt = []
  *             else: alt = alt.upper().split(',')
  *             return alt             # <<<<<<<<<<<<<<
@@ -2835,6 +2785,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_4);
   __Pyx_AddTraceback("cvcf.VCFRecord.alt.__get__");
   __pyx_r = NULL;
   __pyx_L0:;
@@ -2844,7 +2795,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3alt___get__(PyObject *__pyx_v_self)
   return __pyx_r;
 }
 
-/* "cvcf.pyx":156
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":156
  * 
  *     property qual:
  *         def __get__(self):             # <<<<<<<<<<<<<<
@@ -2868,7 +2819,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_4qual___get__(PyObject *__pyx_v_self)
   __Pyx_RefNannySetupContext("__get__");
   __pyx_v_qual = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":157
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":157
  *     property qual:
  *         def __get__(self):
  *             qual = self.fields[5]             # <<<<<<<<<<<<<<
@@ -2881,14 +2832,14 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_4qual___get__(PyObject *__pyx_v_self)
   __pyx_v_qual = ((PyObject *)__pyx_t_1);
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":158
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":158
  *         def __get__(self):
  *             qual = self.fields[5]
  *             if qual == b".": qual = -1             # <<<<<<<<<<<<<<
  *             else:
  *                 try:    qual = float(qual)
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_qual, ((PyObject *)__pyx_kp_b_9), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_qual, ((PyObject *)__pyx_kp_b_6), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 158; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -2900,7 +2851,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_4qual___get__(PyObject *__pyx_v_self)
   }
   /*else*/ {
 
-    /* "cvcf.pyx":160
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":160
  *             if qual == b".": qual = -1
  *             else:
  *                 try:    qual = float(qual)             # <<<<<<<<<<<<<<
@@ -2928,7 +2879,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_4qual___get__(PyObject *__pyx_v_self)
       __pyx_L6_error:;
       __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "cvcf.pyx":161
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":161
  *             else:
  *                 try:    qual = float(qual)
  *                 except: self.vcf.error(str(self),self.QUAL_NOT_NUMERICAL)             # <<<<<<<<<<<<<<
@@ -2944,27 +2895,27 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_4qual___get__(PyObject *__pyx_v_self)
         __pyx_t_6 = PyObject_GetAttr(((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_v_self)->vcf, __pyx_n_s__error); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+        __Pyx_GOTREF(__pyx_t_7);
         __Pyx_INCREF(__pyx_v_self);
         PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_self);
         __Pyx_GIVEREF(__pyx_v_self);
-        __pyx_t_8 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+        __pyx_t_8 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_7, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__QUAL_NOT_NUMERICAL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+        __Pyx_GOTREF(__pyx_t_9);
         PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_8);
         __Pyx_GIVEREF(__pyx_t_8);
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         __Pyx_GIVEREF(__pyx_t_7);
         __pyx_t_8 = 0;
         __pyx_t_7 = 0;
-        __pyx_t_7 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+        __pyx_t_7 = PyObject_Call(__pyx_t_6, __pyx_t_9, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 161; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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   return __pyx_r;
 }
 
-/* "cvcf.pyx":164
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":164
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  *     property filter:
  *         def __get__(self):             # <<<<<<<<<<<<<<
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   char *__pyx_v_f;
   PyObject *__pyx_r = NULL;
-  PyObject *__pyx_t_1 = NULL;
-  PyObject *__pyx_t_2 = NULL;
+  int __pyx_t_1;
+  int __pyx_t_2;
   int __pyx_t_3;
   int __pyx_t_4;
-  int __pyx_t_5;
-  int __pyx_t_6;
+  PyObject *__pyx_t_5 = NULL;
+  PyObject *__pyx_t_6 = NULL;
+  PyObject *__pyx_t_7 = NULL;
   __Pyx_RefNannySetupContext("__get__");
 
-  /* "cvcf.pyx":165
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":165
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  *         def __get__(self):
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-  /* "cvcf.pyx":167
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":167
  *             f = self.fields[6]
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-  __pyx_t_1 = PyBytes_FromString(__pyx_v_f); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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-    __pyx_t_4 = __pyx_t_6;
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-    __pyx_t_4 = __pyx_t_3;
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-    __pyx_r = ((PyObject *)__pyx_t_2);
-    __pyx_t_2 = 0;
+    __pyx_t_5 = PyList_New(0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 167; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
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-    /* "cvcf.pyx":168
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":168
  *             # postpone checking that filters exist.  Encode missing filter or no filtering as empty list
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
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+    __pyx_t_5 = PyBytes_FromString(__pyx_v_f); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_7));
+    PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_kp_s_7));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_7));
+    __pyx_t_7 = PyObject_Call(__pyx_t_6, __pyx_t_5, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __pyx_r = __pyx_t_7;
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     goto __pyx_L0;
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-  __Pyx_XDECREF(__pyx_t_1);
-  __Pyx_XDECREF(__pyx_t_2);
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   return __pyx_r;
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+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":171
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   PyObject *__pyx_v_v;
   PyObject *__pyx_r = NULL;
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-  PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
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-  Py_ssize_t __pyx_t_6;
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   __pyx_v_v = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":172
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":172
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-  /* "cvcf.pyx":174
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":174
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+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":175
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  *                 for blurp in col.split(';'):
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-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-    /* "cvcf.pyx":176
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+      __pyx_t_3 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_5); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+        if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_1)) break;
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       } else {
-        __pyx_t_2 = PyIter_Next(__pyx_t_1);
-        if (!__pyx_t_2) {
+        __pyx_t_5 = PyIter_Next(__pyx_t_1);
+        if (!__pyx_t_5) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
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-        __Pyx_GOTREF(__pyx_t_2);
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       __Pyx_DECREF(__pyx_v_blurp);
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-      /* "cvcf.pyx":177
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":177
  *             if col != b".":
  *                 for blurp in col.split(';'):
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-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_blurp, __pyx_n_s__split); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_15), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetAttr(__pyx_v_blurp, __pyx_n_s__split); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
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+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
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+      __Pyx_GOTREF(__pyx_t_6);
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       __Pyx_DECREF(__pyx_v_elts);
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-      /* "cvcf.pyx":178
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":178
  *                 for blurp in col.split(';'):
  *                     elts = blurp.split('=')
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-      __pyx_t_6 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_3 = (__pyx_t_6 == 1);
-      if (__pyx_t_3) {
+      __pyx_t_7 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 178; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = (__pyx_t_7 == 1);
+      if (__pyx_t_2) {
         __Pyx_INCREF(Py_None);
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       }
 
-      /* "cvcf.pyx":179
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":179
  *                     elts = blurp.split('=')
  *                     if len(elts) == 1: v = None
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-      __pyx_t_6 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_3 = (__pyx_t_6 == 2);
-      if (__pyx_t_3) {
-        __pyx_t_5 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_7 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 179; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = (__pyx_t_7 == 2);
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+        __Pyx_GOTREF(__pyx_t_6);
         __Pyx_DECREF(__pyx_v_v);
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         goto __pyx_L8;
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       /*else*/ {
 
-        /* "cvcf.pyx":180
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":180
  *                     if len(elts) == 1: v = None
  *                     elif len(elts) == 2: v = elts[1]
  *                     else: self.vcf.error(str(self),self.ERROR_INFO_STRING)             # <<<<<<<<<<<<<<
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-        __Pyx_GOTREF(__pyx_t_5);
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
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+        __Pyx_GOTREF(__pyx_t_6);
+        __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
         __Pyx_INCREF(__pyx_v_self);
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         __Pyx_GIVEREF(__pyx_v_self);
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-        __Pyx_GOTREF(__pyx_t_7);
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-        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_5);
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+        __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-        __Pyx_GOTREF(__pyx_t_2);
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-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_GOTREF(__pyx_t_8);
+        PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_t_5);
+        __Pyx_GIVEREF(__pyx_t_5);
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+        __Pyx_GIVEREF(__pyx_t_4);
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+        __pyx_t_4 = PyObject_Call(__pyx_t_6, __pyx_t_8, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 180; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
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       __pyx_L8:;
 
-      /* "cvcf.pyx":181
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":181
  *                     elif len(elts) == 2: v = elts[1]
  *                     else: self.vcf.error(str(self),self.ERROR_INFO_STRING)
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-      __Pyx_GOTREF(__pyx_t_2);
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+      __Pyx_GOTREF(__pyx_t_4);
       __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_8) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 181; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_8);
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       __Pyx_GOTREF(__pyx_t_5);
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       __Pyx_INCREF(__pyx_v_self);
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+      __Pyx_GOTREF(__pyx_t_5);
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-  /* "cvcf.pyx":182
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":182
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   return __pyx_r;
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-/* "cvcf.pyx":185
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":185
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-  /* "cvcf.pyx":186
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":186
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  * 
  *     property samples:
  *         def __get__(self):             # <<<<<<<<<<<<<<
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+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":190
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   return __pyx_r;
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  *     def __getitem__(self, key):             # <<<<<<<<<<<<<<
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+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-  __pyx_t_2 = 0;
+  __pyx_v_values = __pyx_t_4;
+  __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":196
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":196
  *         # parse sample columns
  *         values = self.fields[self.vcf._sample2column[key]].split(':')
  *         alt = self.alt             # <<<<<<<<<<<<<<
  *         format = self.format
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-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__alt); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 196; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":197
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":197
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  *         alt = self.alt
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-  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__format); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 197; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_v_format);
-  __pyx_v_format = __pyx_t_2;
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+  __pyx_v_format = __pyx_t_4;
+  __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":199
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":199
  *         format = self.format
  * 
  *         if len(values) > len(format):             # <<<<<<<<<<<<<<
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-  __pyx_t_5 = (__pyx_t_3 > __pyx_t_4);
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+  __pyx_t_6 = (__pyx_t_3 > __pyx_t_5);
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+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-    PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_1);
-    __Pyx_GIVEREF(__pyx_t_1);
-    __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
+    __Pyx_GIVEREF(__pyx_t_2);
+    __pyx_t_2 = 0;
+    __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_9); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_6 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_18); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_6);
 
-    /* "cvcf.pyx":201
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":201
  *         if len(values) > len(format):
  *             self.error(str(self.line),self.BAD_NUMBER_OF_VALUES,"(found %s values in element %s; expected %s)" %\
  *                            (len(values),key,len(format)))             # <<<<<<<<<<<<<<
  * 
  *         result = {}
  */
-    __pyx_t_4 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_4 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 201; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+    __Pyx_GOTREF(__pyx_t_9);
     PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_7);
     __Pyx_GIVEREF(__pyx_t_7);
     __Pyx_INCREF(__pyx_v_key);
@@ -3634,30 +3595,30 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
     __Pyx_GIVEREF(__pyx_t_8);
     __pyx_t_7 = 0;
     __pyx_t_8 = 0;
-    __pyx_t_8 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_19), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_10), __pyx_t_9); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_8));
-    __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-    PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_1);
+    __Pyx_GOTREF(__pyx_t_9);
+    PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_2);
+    __Pyx_GIVEREF(__pyx_t_2);
+    PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
-    PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_6);
-    __Pyx_GIVEREF(__pyx_t_6);
     PyTuple_SET_ITEM(__pyx_t_9, 2, ((PyObject *)__pyx_t_8));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_8));
+    __pyx_t_2 = 0;
     __pyx_t_1 = 0;
-    __pyx_t_6 = 0;
     __pyx_t_8 = 0;
-    __pyx_t_8 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyObject_Call(__pyx_t_4, __pyx_t_9, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 200; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     goto __pyx_L5;
   }
   __pyx_L5:;
 
-  /* "cvcf.pyx":203
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":203
  *                            (len(values),key,len(format)))
  * 
  *         result = {}             # <<<<<<<<<<<<<<
@@ -3670,18 +3631,18 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
   __pyx_v_result = __pyx_t_8;
   __pyx_t_8 = 0;
 
-  /* "cvcf.pyx":204
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":204
  * 
  *         result = {}
  *         for idx in range(len(format)):             # <<<<<<<<<<<<<<
  *             expected = self.vcf.get_expected(format[idx], self.vcf._format, alt)
  *             if idx < len(values): value = values[idx]
  */
-  __pyx_t_4 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_4; __pyx_t_3+=1) {
+  __pyx_t_5 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 204; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_5; __pyx_t_3+=1) {
     __pyx_v_idx = __pyx_t_3;
 
-    /* "cvcf.pyx":205
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":205
  *         result = {}
  *         for idx in range(len(format)):
  *             expected = self.vcf.get_expected(format[idx], self.vcf._format, alt)             # <<<<<<<<<<<<<<
@@ -3692,28 +3653,28 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
     __Pyx_GOTREF(__pyx_t_8);
     __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_2 = PyObject_GetAttr(((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_v_self)->vcf, __pyx_n_s___format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_6 = PyTuple_New(3); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-    PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_9);
+    __pyx_t_4 = PyObject_GetAttr(((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_v_self)->vcf, __pyx_n_s___format); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_9);
     __Pyx_GIVEREF(__pyx_t_9);
-    PyTuple_SET_ITEM(__pyx_t_6, 1, __pyx_t_2);
-    __Pyx_GIVEREF(__pyx_t_2);
+    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_4);
+    __Pyx_GIVEREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_alt);
-    PyTuple_SET_ITEM(__pyx_t_6, 2, __pyx_v_alt);
+    PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_v_alt);
     __Pyx_GIVEREF(__pyx_v_alt);
     __pyx_t_9 = 0;
-    __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_4 = 0;
+    __pyx_t_4 = PyObject_Call(__pyx_t_8, __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 205; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_expected);
-    __pyx_v_expected = __pyx_t_2;
-    __pyx_t_2 = 0;
+    __pyx_v_expected = __pyx_t_4;
+    __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":206
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":206
  *         for idx in range(len(format)):
  *             expected = self.vcf.get_expected(format[idx], self.vcf._format, alt)
  *             if idx < len(values): value = values[idx]             # <<<<<<<<<<<<<<
@@ -3721,62 +3682,62 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
  *                 if expected == -1: value = "."
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     __pyx_t_10 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_5 = (__pyx_v_idx < __pyx_t_10);
-    if (__pyx_t_5) {
-      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_values, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_6 = (__pyx_v_idx < __pyx_t_10);
+    if (__pyx_t_6) {
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_values, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 206; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_value);
-      __pyx_v_value = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_value = __pyx_t_4;
+      __pyx_t_4 = 0;
       goto __pyx_L8;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":208
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":208
  *             if idx < len(values): value = values[idx]
  *             else:
  *                 if expected == -1: value = "."             # <<<<<<<<<<<<<<
  *                 else: value = ",".join(["."]*expected)
  * 
  */
-      __pyx_t_2 = PyObject_RichCompare(__pyx_v_expected, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      if (__pyx_t_5) {
-        __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
+      __pyx_t_4 = PyObject_RichCompare(__pyx_v_expected, __pyx_int_neg_1, Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 208; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      if (__pyx_t_6) {
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
         __Pyx_DECREF(__pyx_v_value);
-        __pyx_v_value = ((PyObject *)__pyx_kp_s_9);
+        __pyx_v_value = ((PyObject *)__pyx_kp_s_6);
         goto __pyx_L9;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":209
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":209
  *             else:
  *                 if expected == -1: value = "."
  *                 else: value = ",".join(["."]*expected)             # <<<<<<<<<<<<<<
  * 
  *             result[format[idx]] = self.vcf.parse_formatdata(format[idx], value, self.vcf._format, str(self.data))
  */
-        __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_2), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_6 = PyList_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-        __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
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-        __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
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+        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
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+        __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-        PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_8);
+        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_8);
         __Pyx_GIVEREF(__pyx_t_8);
         __pyx_t_8 = 0;
-        __pyx_t_8 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_Call(__pyx_t_4, __pyx_t_1, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 209; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-    /* "cvcf.pyx":211
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":211
  *                 else: value = ",".join(["."]*expected)
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     __Pyx_GOTREF(__pyx_t_8);
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-    __Pyx_GOTREF(__pyx_t_6);
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-    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_9 = PyBytes_FromString(((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_v_self)->__pyx_base.data); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_9));
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_9));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
     __pyx_t_9 = 0;
-    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_2, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_6);
-    __Pyx_GIVEREF(__pyx_t_6);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+    __Pyx_GIVEREF(__pyx_t_1);
     __Pyx_INCREF(__pyx_v_value);
-    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_value);
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     __Pyx_GIVEREF(__pyx_v_value);
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-    __Pyx_GIVEREF(__pyx_t_2);
-    PyTuple_SET_ITEM(__pyx_t_1, 3, __pyx_t_9);
+    PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_4);
+    __Pyx_GIVEREF(__pyx_t_4);
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     __Pyx_GIVEREF(__pyx_t_9);
-    __pyx_t_6 = 0;
-    __pyx_t_2 = 0;
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+    __pyx_t_4 = 0;
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+    __pyx_t_9 = PyObject_Call(__pyx_t_8, __pyx_t_2, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-    __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    if (PyDict_SetItem(((PyObject *)__pyx_v_result), __pyx_t_1, __pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+    __Pyx_GOTREF(__pyx_t_2);
+    if (PyDict_SetItem(((PyObject *)__pyx_v_result), __pyx_t_2, __pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 211; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
 
-    /* "cvcf.pyx":212
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":212
  * 
  *             result[format[idx]] = self.vcf.parse_formatdata(format[idx], value, self.vcf._format, str(self.data))
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@@ -3841,30 +3802,30 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
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     __pyx_t_9 = PyObject_RichCompare(__pyx_v_expected, __pyx_int_neg_1, Py_NE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    if (__pyx_t_5) {
+    if (__pyx_t_6) {
       __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
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-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_result), __pyx_t_9); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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+      __pyx_t_10 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_10 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_10); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, __pyx_v_expected, Py_NE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 212; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __pyx_t_12 = __pyx_t_11;
     } else {
-      __pyx_t_12 = __pyx_t_5;
+      __pyx_t_12 = __pyx_t_6;
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     if (__pyx_t_12) {
 
-      /* "cvcf.pyx":213
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":213
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       __Pyx_GOTREF(__pyx_t_9);
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
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+      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
       __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 213; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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       __Pyx_GOTREF(__pyx_t_8);
 
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       __Pyx_GIVEREF(__pyx_t_8);
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       __Pyx_GIVEREF(((PyObject *)__pyx_t_7));
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+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":215
  *                 self.error(str(self.data),self.BAD_NUMBER_OF_PARAMETERS,
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       __Pyx_GOTREF(__pyx_t_7);
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+        __pyx_t_9 = PyNumber_Multiply(((PyObject *)__pyx_t_1), __pyx_t_7); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __pyx_t_7 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_7);
+        __pyx_t_1 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_result), __pyx_t_7); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
+        __pyx_t_8 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_t_9); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-        __pyx_t_9 = PyNumber_InPlaceAdd(__pyx_t_6, __pyx_t_1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        if (PyDict_SetItem(((PyObject *)__pyx_v_result), __pyx_t_7, __pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        if (PyDict_SetItem(((PyObject *)__pyx_v_result), __pyx_t_7, __pyx_t_8) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 215; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         goto __pyx_L11;
       }
       __pyx_L11:;
 
-      /* "cvcf.pyx":216
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":216
  *                            "id=%s, expected %s parameters, got %s" % (format[idx],expected,result[format[idx]]))
  *                 if len(result[format[idx]] ) < expected: result[format[idx]] += [result[format[idx]][-1]]*(expected-len(result[format[idx]]))
  *                 result[format[idx]] = result[format[idx]][:expected]             # <<<<<<<<<<<<<<
@@ -4006,24 +3967,24 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
  */
       __pyx_t_7 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_9 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_result), __pyx_t_7); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_8 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_result), __pyx_t_7); if (!__pyx_t_8) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_8);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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-      __pyx_t_7 = __Pyx_PySequence_GetSlice(__pyx_t_9, 0, __pyx_t_10); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PySequence_GetSlice(__pyx_t_8, 0, __pyx_t_10); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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-      __Pyx_GOTREF(__pyx_t_9);
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-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+      __pyx_t_8 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_8) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_8);
+      if (PyDict_SetItem(((PyObject *)__pyx_v_result), __pyx_t_8, __pyx_t_7) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 216; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       goto __pyx_L10;
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     __pyx_L10:;
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-  /* "cvcf.pyx":218
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":218
  *                 result[format[idx]] = result[format[idx]][:expected]
  * 
  *         return result             # <<<<<<<<<<<<<<
@@ -4040,7 +4001,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_7);
   __Pyx_XDECREF(__pyx_t_8);
   __Pyx_XDECREF(__pyx_t_9);
@@ -4058,7 +4019,7 @@ static PyObject *__pyx_pf_4cvcf_9VCFRecord_3__getitem__(PyObject *__pyx_v_self,
   return __pyx_r;
 }
 
-/* "cvcf.pyx":224
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":224
  *     '''converts a :term:`tabix row` into a VCF record.'''
  *     cdef vcffile
  *     def __init__(self, vcffile ):             # <<<<<<<<<<<<<<
@@ -4104,7 +4065,7 @@ static int __pyx_pf_4cvcf_11asVCFRecord___init__(PyObject *__pyx_v_self, PyObjec
   return -1;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":225
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":225
  *     cdef vcffile
  *     def __init__(self, vcffile ):
  *         self.vcffile = vcffile             # <<<<<<<<<<<<<<
@@ -4122,7 +4083,7 @@ static int __pyx_pf_4cvcf_11asVCFRecord___init__(PyObject *__pyx_v_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":226
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":226
  *     def __init__(self, vcffile ):
  *         self.vcffile = vcffile
  *     def __call__(self, char * buffer, int len ):             # <<<<<<<<<<<<<<
@@ -4130,8 +4091,8 @@ static int __pyx_pf_4cvcf_11asVCFRecord___init__(PyObject *__pyx_v_self, PyObjec
  *         r = VCFRecord( self.vcffile )
  */
 
-static PyObject *__pyx_pf_4cvcf_11asVCFRecord_1__call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyObject *__pyx_pf_4cvcf_11asVCFRecord_1__call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_11asVCFRecord___call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_pf_4cvcf_11asVCFRecord___call__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   char *__pyx_v_buffer;
   int __pyx_v_len;
   struct __pyx_obj_4cvcf_VCFRecord *__pyx_v_r;
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   __pyx_v_r = ((struct __pyx_obj_4cvcf_VCFRecord *)Py_None); __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":228
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":228
  *     def __call__(self, char * buffer, int len ):
  *         cdef VCFRecord r
  *         r = VCFRecord( self.vcffile )             # <<<<<<<<<<<<<<
@@ -4190,18 +4151,18 @@ static PyObject *__pyx_pf_4cvcf_11asVCFRecord_1__call__(PyObject *__pyx_v_self,
  *         return r
  */
   __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((struct __pyx_obj_4cvcf_asVCFRecord *)__pyx_v_self)->vcffile);
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((struct __pyx_obj_4cvcf_asVCFRecord *)__pyx_v_self)->vcffile);
   __Pyx_GIVEREF(((struct __pyx_obj_4cvcf_asVCFRecord *)__pyx_v_self)->vcffile);
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cvcf_VCFRecord)), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cvcf_VCFRecord)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 228; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_v_r));
   __pyx_v_r = ((struct __pyx_obj_4cvcf_VCFRecord *)__pyx_t_2);
   __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":229
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":229
  *         cdef VCFRecord r
  *         r = VCFRecord( self.vcffile )
  *         r.copy( buffer, len )             # <<<<<<<<<<<<<<
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   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":230
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":230
  *         r = VCFRecord( self.vcffile )
  *         r.copy( buffer, len )
  *         return r             # <<<<<<<<<<<<<<
@@ -4238,7 +4199,7 @@ static PyObject *__pyx_pf_4cvcf_11asVCFRecord_1__call__(PyObject *__pyx_v_self,
   return __pyx_r;
 }
 
-/* "cvcf.pyx":306
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":306
  *     _lines = None
  * 
  *     def __init__(self, _copy=None, reference=None, regions=None, lines=None, leftalign=False):             # <<<<<<<<<<<<<<
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   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
   PyObject *__pyx_t_5 = NULL;
-  int __pyx_t_6;
+  PyObject *__pyx_t_6 = NULL;
+  int __pyx_t_7;
   static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__self,&__pyx_n_s___copy,&__pyx_n_s__reference,&__pyx_n_s__regions,&__pyx_n_s__lines,&__pyx_n_s__leftalign,0};
   __Pyx_RefNannySetupContext("__init__");
   __pyx_self = __pyx_self;
@@ -4273,7 +4235,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
     values[2] = ((PyObject *)Py_None);
     values[3] = ((PyObject *)Py_None);
     values[4] = ((PyObject *)Py_None);
-    values[5] = __pyx_k_22;
+    values[5] = __pyx_k_13;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  6: values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
       case  5: values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
@@ -4329,7 +4291,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
     __pyx_v_reference = ((PyObject *)Py_None);
     __pyx_v_regions = ((PyObject *)Py_None);
     __pyx_v_lines = ((PyObject *)Py_None);
-    __pyx_v_leftalign = __pyx_k_22;
+    __pyx_v_leftalign = __pyx_k_13;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  6: __pyx_v_leftalign = PyTuple_GET_ITEM(__pyx_args, 5);
       case  5: __pyx_v_lines = PyTuple_GET_ITEM(__pyx_args, 4);
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   __pyx_v_id = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":308
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":308
  *     def __init__(self, _copy=None, reference=None, regions=None, lines=None, leftalign=False):
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     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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+    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_3));
+    PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_kp_s_3));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_3));
+    __pyx_t_6 = PyObject_Call(__pyx_t_4, __pyx_t_5, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_4);
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+    __pyx_t_5 = __Pyx_GetItemInt(__pyx_t_6, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    if (PyObject_SetItem(__pyx_t_2, __pyx_t_5, __pyx_v_id) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":309
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":309
  *         # make error identifiers accessible by name
  *         for id in self._errors.keys(): self.__dict__[self._errors[id].split(':')[0]] = id
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@@ -4422,11 +4390,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
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+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 309; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  if (__pyx_t_6) {
+  if (__pyx_t_7) {
 
-    /* "cvcf.pyx":310
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":310
  *         for id in self._errors.keys(): self.__dict__[self._errors[id].split(':')[0]] = id
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     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":311
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":311
  *         if _copy != None:
  *             self._leftalign = _copy._leftalign
  *             self._header = _copy._header[:]             # <<<<<<<<<<<<<<
@@ -4447,118 +4415,118 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
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-    __Pyx_GOTREF(__pyx_t_4);
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+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":312
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":312
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  *             self._header = _copy._header[:]
  *             self._version = _copy._version             # <<<<<<<<<<<<<<
  *             self._info = copy.deepcopy(_copy._info)
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-    __pyx_t_4 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___version); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___version, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_5 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___version); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 312; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
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+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":313
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":313
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  *             self._version = _copy._version
  *             self._info = copy.deepcopy(_copy._info)             # <<<<<<<<<<<<<<
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+    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
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-    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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+    __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 313; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_4);
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+    __Pyx_GIVEREF(__pyx_t_5);
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     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":314
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":314
  *             self._version = _copy._version
  *             self._info = copy.deepcopy(_copy._info)
  *             self._filter = copy.deepcopy(_copy._filter)             # <<<<<<<<<<<<<<
  *             self._format = copy.deepcopy(_copy._format)
  *             self._samples = _copy._samples[:]
  */
-    __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = PyObject_GetAttr(__pyx_t_4, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_2 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
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-    __Pyx_GOTREF(__pyx_t_4);
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+    __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 314; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_GOTREF(__pyx_t_3);
+    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
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+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
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-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":315
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":315
  *             self._info = copy.deepcopy(_copy._info)
  *             self._filter = copy.deepcopy(_copy._filter)
  *             self._format = copy.deepcopy(_copy._format)             # <<<<<<<<<<<<<<
  *             self._samples = _copy._samples[:]
  *             self._sample2column = copy.deepcopy(_copy._sample2column)
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-    __pyx_t_3 = PyObject_GetAttr(__pyx_t_4, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
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     __Pyx_GOTREF(__pyx_t_3);
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-    __Pyx_GOTREF(__pyx_t_4);
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+    __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4);
-    __Pyx_GIVEREF(__pyx_t_4);
-    __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_GOTREF(__pyx_t_2);
+    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
+    __pyx_t_5 = 0;
+    __pyx_t_5 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-    if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___format, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___format, __pyx_t_5) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 315; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":316
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":316
  *             self._filter = copy.deepcopy(_copy._filter)
  *             self._format = copy.deepcopy(_copy._format)
  *             self._samples = _copy._samples[:]             # <<<<<<<<<<<<<<
  *             self._sample2column = copy.deepcopy(_copy._sample2column)
  *             self._ignored_errors = copy.deepcopy(_copy._ignored_errors)
  */
-    __pyx_t_4 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___samples); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_t_4, 0, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___samples); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_2 = PySequence_GetSlice(__pyx_t_5, 0, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___samples, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 316; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":317
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":317
  *             self._format = copy.deepcopy(_copy._format)
  *             self._samples = _copy._samples[:]
  *             self._sample2column = copy.deepcopy(_copy._sample2column)             # <<<<<<<<<<<<<<
@@ -4567,24 +4535,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
  */
     __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_5 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___sample2column); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_5, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___sample2column, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 317; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":318
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":318
  *             self._samples = _copy._samples[:]
  *             self._sample2column = copy.deepcopy(_copy._sample2column)
  *             self._ignored_errors = copy.deepcopy(_copy._ignored_errors)             # <<<<<<<<<<<<<<
@@ -4598,19 +4566,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___ignored_errors); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-    PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
+    __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
+    PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_3, __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___ignored_errors, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 318; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":319
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":319
  *             self._sample2column = copy.deepcopy(_copy._sample2column)
  *             self._ignored_errors = copy.deepcopy(_copy._ignored_errors)
  *             self._warn_errors = copy.deepcopy(_copy._warn_errors)             # <<<<<<<<<<<<<<
@@ -4619,24 +4587,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
  */
     __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__copy); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_4 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_5 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__deepcopy); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = PyObject_GetAttr(__pyx_v__copy, __pyx_n_s___warn_errors); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_5, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___warn_errors, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 319; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":320
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":320
  *             self._ignored_errors = copy.deepcopy(_copy._ignored_errors)
  *             self._warn_errors = copy.deepcopy(_copy._warn_errors)
  *             self._reference = _copy._reference             # <<<<<<<<<<<<<<
@@ -4648,7 +4616,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___reference, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 320; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":321
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":321
  *             self._warn_errors = copy.deepcopy(_copy._warn_errors)
  *             self._reference = _copy._reference
  *             self._regions = _copy._regions             # <<<<<<<<<<<<<<
@@ -4663,49 +4631,49 @@ static PyObject *__pyx_pf_4cvcf_3VCF___init__(PyObject *__pyx_self, PyObject *__
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":322
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":322
  *             self._reference = _copy._reference
  *             self._regions = _copy._regions
  *         if reference: self._reference = reference             # <<<<<<<<<<<<<<
  *         if regions: self._regions = regions
  *         if leftalign: self._leftalign = leftalign
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_reference); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 322; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__pyx_t_6) {
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_v_reference); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 322; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_t_7) {
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___reference, __pyx_v_reference) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 322; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L9;
   }
   __pyx_L9:;
 
-  /* "cvcf.pyx":323
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":323
  *             self._regions = _copy._regions
  *         if reference: self._reference = reference
  *         if regions: self._regions = regions             # <<<<<<<<<<<<<<
  *         if leftalign: self._leftalign = leftalign
  *         self._lines = lines
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_regions); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 323; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__pyx_t_6) {
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_v_regions); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 323; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_t_7) {
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___regions, __pyx_v_regions) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 323; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L10;
   }
   __pyx_L10:;
 
-  /* "cvcf.pyx":324
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":324
  *         if reference: self._reference = reference
  *         if regions: self._regions = regions
  *         if leftalign: self._leftalign = leftalign             # <<<<<<<<<<<<<<
  *         self._lines = lines
  * 
  */
-  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_leftalign); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 324; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__pyx_t_6) {
+  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_v_leftalign); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 324; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_t_7) {
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___leftalign, __pyx_v_leftalign) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 324; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L11;
   }
   __pyx_L11:;
 
-  /* "cvcf.pyx":325
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":325
  *         if regions: self._regions = regions
  *         if leftalign: self._leftalign = leftalign
  *         self._lines = lines             # <<<<<<<<<<<<<<
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   __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_6);
   __Pyx_AddTraceback("cvcf.VCF.__init__");
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   return __pyx_r;
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-/* "cvcf.pyx":327
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":327
  *         self._lines = lines
  * 
  *     def error(self,line,error,opt=None):             # <<<<<<<<<<<<<<
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  *         errorlabel, errorstring = self._errors[error].split(':')
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-static PyObject *__pyx_pf_4cvcf_3VCF_1error(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
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   PyObject *__pyx_v_self = 0;
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   __pyx_v_errwarn = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":328
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":328
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+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":329
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+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_3));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_3));
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+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+    __Pyx_GOTREF(__pyx_t_3);
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     if (__Pyx_EndUnpack(__pyx_t_5, 2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __Pyx_DECREF(__pyx_v_errorlabel);
-    __pyx_v_errorlabel = __pyx_t_1;
-    __pyx_t_1 = 0;
+    __pyx_v_errorlabel = __pyx_t_3;
+    __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_errorstring);
-    __pyx_v_errorstring = __pyx_t_4;
-    __pyx_t_4 = 0;
+    __pyx_v_errorstring = __pyx_t_1;
+    __pyx_t_1 = 0;
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-  /* "cvcf.pyx":330
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":330
  *         if error in self._ignored_errors: return
  *         errorlabel, errorstring = self._errors[error].split(':')
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@@ -4899,100 +4874,100 @@ static PyObject *__pyx_pf_4cvcf_3VCF_1error(PyObject *__pyx_self, PyObject *__py
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-    __pyx_t_3 = PyNumber_Remainder(__pyx_v_errorstring, __pyx_v_opt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 330; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_4 = PyNumber_Remainder(__pyx_v_errorstring, __pyx_v_opt); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 330; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_v_errorstring);
-    __pyx_v_errorstring = __pyx_t_3;
-    __pyx_t_3 = 0;
+    __pyx_v_errorstring = __pyx_t_4;
+    __pyx_t_4 = 0;
     goto __pyx_L7;
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   __pyx_L7:;
 
-  /* "cvcf.pyx":331
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":331
  *         errorlabel, errorstring = self._errors[error].split(':')
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-  __pyx_t_3 = PyList_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 331; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  __pyx_t_4 = PyList_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 331; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Error));
-  PyList_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_n_s__Error));
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   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Error));
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+  __Pyx_GOTREF(__pyx_t_1);
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   __Pyx_GIVEREF(__pyx_v_errorlabel);
   __Pyx_INCREF(__pyx_v_errorstring);
-  PyTuple_SET_ITEM(__pyx_t_1, 4, __pyx_v_errorstring);
+  PyTuple_SET_ITEM(__pyx_t_3, 4, __pyx_v_errorstring);
   __Pyx_GIVEREF(__pyx_v_errorstring);
-  __pyx_t_3 = 0;
-  __pyx_t_3 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_25), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
-  __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_14), __pyx_t_3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_4));
+  __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 332; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":333
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":333
  *         errwarn = ["Error","Warning"][error in self._warn_errors]
  *         sys.stderr.write("Line %s: '%s'\n%s %s: %s\n" % (self._lineno,line,errwarn,errorlabel,errorstring))
  *         if error in self._warn_errors: return             # <<<<<<<<<<<<<<
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  * 
  */
-  __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___warn_errors); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_2 = ((PySequence_Contains(__pyx_t_3, __pyx_v_error))); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___warn_errors); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_2 = ((PySequence_Contains(__pyx_t_4, __pyx_v_error))); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 333; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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     __Pyx_XDECREF(__pyx_r);
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@@ -5001,23 +4976,23 @@ static PyObject *__pyx_pf_4cvcf_3VCF_1error(PyObject *__pyx_self, PyObject *__py
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":334
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":334
  *         sys.stderr.write("Line %s: '%s'\n%s %s: %s\n" % (self._lineno,line,errwarn,errorlabel,errorstring))
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  *         raise ValueError(errorstring)             # <<<<<<<<<<<<<<
  * 
  *     def parse_format(self,line,format,filter=False):
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-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(__pyx_v_errorstring);
-  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_errorstring);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_errorstring);
   __Pyx_GIVEREF(__pyx_v_errorstring);
-  __pyx_t_1 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  __Pyx_Raise(__pyx_t_1, 0, 0);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_4, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __Pyx_Raise(__pyx_t_3, 0, 0);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   {__pyx_filename = __pyx_f[0]; __pyx_lineno = 334; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -5038,7 +5013,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_1error(PyObject *__pyx_self, PyObject *__py
   return __pyx_r;
 }
 
-/* "cvcf.pyx":336
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":336
  *         raise ValueError(errorstring)
  * 
  *     def parse_format(self,line,format,filter=False):             # <<<<<<<<<<<<<<
@@ -5046,9 +5021,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_1error(PyObject *__pyx_self, PyObject *__py
  *             if not format.startswith('<'):
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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-static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse_format = {__Pyx_NAMESTR("parse_format"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse_format, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_line = 0;
   PyObject *__pyx_v_format = 0;
@@ -5064,8 +5039,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
   int __pyx_t_3;
-  int __pyx_t_4;
-  PyObject *__pyx_t_5 = NULL;
+  PyObject *__pyx_t_4 = NULL;
+  int __pyx_t_5;
   Py_ssize_t __pyx_t_6;
   PyObject *__pyx_t_7 = NULL;
   int __pyx_t_8;
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     Py_ssize_t kw_args = PyDict_Size(__pyx_kwds);
     PyObject* values[4] = {0,0,0,0};
-    values[3] = __pyx_k_26;
+    values[3] = __pyx_k_15;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  4: values[3] = PyTuple_GET_ITEM(__pyx_args, 3);
       case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
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     __pyx_v_format = values[2];
     __pyx_v_filter = values[3];
   } else {
-    __pyx_v_filter = __pyx_k_26;
+    __pyx_v_filter = __pyx_k_15;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  4:
       __pyx_v_filter = PyTuple_GET_ITEM(__pyx_args, 3);
@@ -5140,7 +5115,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   return NULL;
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   __Pyx_INCREF(__pyx_v_format);
-  __pyx_v_data = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_data = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_idx = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_elts = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_first = Py_None; __Pyx_INCREF(Py_None);
@@ -5148,7 +5123,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __pyx_v_n = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_t = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":337
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":337
  * 
  *     def parse_format(self,line,format,filter=False):
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   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":338
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":338
  *     def parse_format(self,line,format,filter=False):
  *         if self._version == 40:
  *             if not format.startswith('<'):             # <<<<<<<<<<<<<<
@@ -5173,105 +5148,117 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
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     __pyx_t_2 = PyObject_GetAttr(__pyx_v_format, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_28), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_16));
+    PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_16));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_16));
+    __pyx_t_4 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __pyx_t_4 = (!__pyx_t_3);
-    if (__pyx_t_4) {
+    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_5 = (!__pyx_t_3);
+    if (__pyx_t_5) {
 
-      /* "cvcf.pyx":339
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":339
  *         if self._version == 40:
  *             if not format.startswith('<'):
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+      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 339; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
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       __Pyx_GOTREF(__pyx_t_1);
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+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 339; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
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       __Pyx_INCREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_line);
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       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_2);
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-      __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+      PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
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+      __pyx_t_1 = 0;
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+      __Pyx_GOTREF(__pyx_t_1);
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       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-      /* "cvcf.pyx":340
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":340
  *             if not format.startswith('<'):
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  *                 format = "<"+format             # <<<<<<<<<<<<<<
  *             if not format.endswith('>'):
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  */
-      __pyx_t_2 = PyNumber_Add(((PyObject *)__pyx_kp_s_27), __pyx_v_format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 340; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_1 = PyNumber_Add(((PyObject *)__pyx_kp_s_16), __pyx_v_format); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 340; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_v_format);
-      __pyx_v_format = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_format = __pyx_t_1;
+      __pyx_t_1 = 0;
       goto __pyx_L7;
     }
     __pyx_L7:;
 
-    /* "cvcf.pyx":341
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":341
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  *                 format = "<"+format
  *             if not format.endswith('>'):             # <<<<<<<<<<<<<<
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  *                 format += ">"
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-    __pyx_t_2 = PyObject_GetAttr(__pyx_v_format, __pyx_n_s__endswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_format, __pyx_n_s__endswith); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_18));
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_18));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_18));
+    __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_3 = (!__pyx_t_4);
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_3 = (!__pyx_t_5);
     if (__pyx_t_3) {
 
-      /* "cvcf.pyx":342
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":342
  *                 format = "<"+format
  *             if not format.endswith('>'):
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)             # <<<<<<<<<<<<<<
  *                 format += ">"
  *             format = format[1:-1]
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-      __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_29); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_17); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_t_4, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 342; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":343
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":343
  *             if not format.endswith('>'):
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  *                 format += ">"             # <<<<<<<<<<<<<<
  *             format = format[1:-1]
  *         data = {'id':None,'number':None,'type':None,'descr':None}
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-      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_format, ((PyObject *)__pyx_kp_s_30)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 343; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_format, ((PyObject *)__pyx_kp_s_18)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 343; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_v_format);
       __pyx_v_format = __pyx_t_2;
@@ -5280,14 +5267,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     }
     __pyx_L8:;
 
-    /* "cvcf.pyx":344
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":344
  *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
  *                 format += ">"
  *             format = format[1:-1]             # <<<<<<<<<<<<<<
  *         data = {'id':None,'number':None,'type':None,'descr':None}
  *         idx = 0
  */
-    __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_format, 1, -1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 344; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PySequence_GetSlice(__pyx_v_format, 1, -1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 344; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_v_format);
     __pyx_v_format = __pyx_t_2;
@@ -5296,7 +5283,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":345
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":345
  *                 format += ">"
  *             format = format[1:-1]
  *         data = {'id':None,'number':None,'type':None,'descr':None}             # <<<<<<<<<<<<<<
@@ -5313,7 +5300,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __pyx_v_data = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":346
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":346
  *             format = format[1:-1]
  *         data = {'id':None,'number':None,'type':None,'descr':None}
  *         idx = 0             # <<<<<<<<<<<<<<
@@ -5324,7 +5311,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __Pyx_DECREF(__pyx_v_idx);
   __pyx_v_idx = __pyx_int_0;
 
-  /* "cvcf.pyx":347
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":347
  *         data = {'id':None,'number':None,'type':None,'descr':None}
  *         idx = 0
  *         while len(format.strip())>0:             # <<<<<<<<<<<<<<
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     __pyx_t_3 = (__pyx_t_6 > 0);
     if (!__pyx_t_3) break;
 
-    /* "cvcf.pyx":348
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":348
  *         idx = 0
  *         while len(format.strip())>0:
  *             elts = format.strip().split(',')             # <<<<<<<<<<<<<<
@@ -5357,317 +5344,395 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
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     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_32), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 348; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 348; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_2));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+    __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 348; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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     __Pyx_DECREF(__pyx_v_elts);
-    __pyx_v_elts = __pyx_t_2;
-    __pyx_t_2 = 0;
+    __pyx_v_elts = __pyx_t_4;
+    __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":349
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":349
  *         while len(format.strip())>0:
  *             elts = format.strip().split(',')
  *             first, rest = elts[0], ','.join(elts[1:])             # <<<<<<<<<<<<<<
  *             if first.find('=') == -1 or (first.find('"')>=0 and first.find('=') > first.find('"')):
  *                 if self._version == 40: self.error(line,self.V40_FORMAT_MUST_HAVE_NAMED_FIELDS)
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-    __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_2), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_2), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PySequence_GetSlice(__pyx_v_elts, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_7));
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-    __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+    __Pyx_GOTREF(__pyx_t_7);
+    PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_1);
+    __Pyx_GIVEREF(__pyx_t_1);
+    __pyx_t_1 = 0;
+    __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 349; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_v_first);
-    __pyx_v_first = __pyx_t_2;
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+    __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_v_rest);
-    __pyx_v_rest = __pyx_t_5;
-    __pyx_t_5 = 0;
+    __pyx_v_rest = __pyx_t_1;
+    __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":350
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":350
  *             elts = format.strip().split(',')
  *             first, rest = elts[0], ','.join(elts[1:])
  *             if first.find('=') == -1 or (first.find('"')>=0 and first.find('=') > first.find('"')):             # <<<<<<<<<<<<<<
  *                 if self._version == 40: self.error(line,self.V40_FORMAT_MUST_HAVE_NAMED_FIELDS)
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+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":351
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-      /* "cvcf.pyx":352
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":352
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-      /* "cvcf.pyx":353
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":353
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       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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+      __Pyx_GOTREF(__pyx_t_4);
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       __Pyx_DECREF(__pyx_v_first);
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       goto __pyx_L11;
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-    /* "cvcf.pyx":354
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":354
  *                 if idx == 4: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *                 first = ["ID=","Number=","Type=","Description="][idx] + first
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     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_44), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 354; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_22));
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     __Pyx_GOTREF(__pyx_t_7);
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     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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       __pyx_t_7 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__split); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 354; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
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       __Pyx_GOTREF(__pyx_t_2);
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       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+      __Pyx_GOTREF(__pyx_t_2);
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-    /* "cvcf.pyx":355
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     __Pyx_GOTREF(__pyx_t_2);
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+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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+      __pyx_t_7 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__split); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
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+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
+      PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_8));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
+      __pyx_t_2 = PyObject_Call(__pyx_t_7, __pyx_t_4, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       goto __pyx_L14;
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-    /* "cvcf.pyx":356
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":356
  *             if first.startswith('ID='):            data['id'] = first.split('=')[1]
  *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]
  *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]             # <<<<<<<<<<<<<<
  *             elif first.startswith('Description='):
  *                 elts = format.split('"')
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-    __pyx_t_2 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__startswith); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_48), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_24));
+    PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_24));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_24));
+    __pyx_t_7 = PyObject_Call(__pyx_t_4, __pyx_t_2, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    if (__pyx_t_4) {
+    if (__pyx_t_5) {
       __pyx_t_7 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__split); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_k_tuple_49), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_8));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
+      __pyx_t_4 = PyObject_Call(__pyx_t_7, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_7 = __Pyx_GetItemInt(__pyx_t_2, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_t_4, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 356; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L14;
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-    /* "cvcf.pyx":357
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":357
  *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]
  *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
  *             elif first.startswith('Description='):             # <<<<<<<<<<<<<<
  *                 elts = format.split('"')
  *                 if len(elts)<3:
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-    __pyx_t_7 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__startswith); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_2 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_k_tuple_50), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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+    __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_25));
+    PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_25));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_25));
+    __pyx_t_7 = PyObject_Call(__pyx_t_2, __pyx_t_4, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    if (__pyx_t_4) {
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+    if (__pyx_t_5) {
 
-      /* "cvcf.pyx":358
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":358
  *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
  *             elif first.startswith('Description='):
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  *                 if len(elts)<3:
  *                     self.error(line,self.FORMAT_MISSING_QUOTES)
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-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_format, __pyx_n_s__split); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_51), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetAttr(__pyx_v_format, __pyx_n_s__split); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_19));
+      PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_kp_s_19));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_19));
+      __pyx_t_2 = PyObject_Call(__pyx_t_7, __pyx_t_4, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_v_elts);
-      __pyx_v_elts = __pyx_t_7;
-      __pyx_t_7 = 0;
+      __pyx_v_elts = __pyx_t_2;
+      __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":359
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":359
  *             elif first.startswith('Description='):
  *                 elts = format.split('"')
  *                 if len(elts)<3:             # <<<<<<<<<<<<<<
@@ -5675,118 +5740,130 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
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       __pyx_t_6 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 359; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_4 = (__pyx_t_6 < 3);
-      if (__pyx_t_4) {
+      __pyx_t_5 = (__pyx_t_6 < 3);
+      if (__pyx_t_5) {
 
-        /* "cvcf.pyx":360
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":360
  *                 elts = format.split('"')
  *                 if len(elts)<3:
  *                     self.error(line,self.FORMAT_MISSING_QUOTES)             # <<<<<<<<<<<<<<
  *                     elts = first.split('=') + [rest]
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-        __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_52); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+        __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_26); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_7);
         __Pyx_INCREF(__pyx_v_line);
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         __Pyx_GIVEREF(__pyx_v_line);
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-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+        PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_4);
+        __Pyx_GIVEREF(__pyx_t_4);
+        __pyx_t_4 = 0;
+        __pyx_t_4 = PyObject_Call(__pyx_t_2, __pyx_t_7, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 360; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-        /* "cvcf.pyx":361
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":361
  *                 if len(elts)<3:
  *                     self.error(line,self.FORMAT_MISSING_QUOTES)
  *                     elts = first.split('=') + [rest]             # <<<<<<<<<<<<<<
  *                 data['descr'] = elts[1]
  *                 rest = '"'.join(elts[2:])
  */
-        __pyx_t_2 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__split); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_GetAttr(__pyx_v_first, __pyx_n_s__split); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_7);
+        __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
+        PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_kp_s_8));
+        __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
+        __pyx_t_2 = PyObject_Call(__pyx_t_4, __pyx_t_7, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
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-        __Pyx_GOTREF(__pyx_t_5);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __pyx_t_7 = PyList_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_7));
         __Pyx_INCREF(__pyx_v_rest);
-        PyList_SET_ITEM(__pyx_t_2, 0, __pyx_v_rest);
+        PyList_SET_ITEM(__pyx_t_7, 0, __pyx_v_rest);
         __Pyx_GIVEREF(__pyx_v_rest);
-        __pyx_t_7 = PyNumber_Add(__pyx_t_5, ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_7);
-        __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+        __pyx_t_4 = PyNumber_Add(__pyx_t_2, ((PyObject *)__pyx_t_7)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_v_elts);
-        __pyx_v_elts = __pyx_t_7;
-        __pyx_t_7 = 0;
+        __pyx_v_elts = __pyx_t_4;
+        __pyx_t_4 = 0;
         goto __pyx_L15;
       }
       __pyx_L15:;
 
-      /* "cvcf.pyx":362
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":362
  *                     self.error(line,self.FORMAT_MISSING_QUOTES)
  *                     elts = first.split('=') + [rest]
  *                 data['descr'] = elts[1]             # <<<<<<<<<<<<<<
  *                 rest = '"'.join(elts[2:])
  *                 if rest.startswith(','): rest = rest[1:]
  */
-      __pyx_t_7 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr), __pyx_t_7) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr), __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 362; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "cvcf.pyx":363
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":363
  *                     elts = first.split('=') + [rest]
  *                 data['descr'] = elts[1]
  *                 rest = '"'.join(elts[2:])             # <<<<<<<<<<<<<<
  *                 if rest.startswith(','): rest = rest[1:]
  *             else:
  */
-      __pyx_t_7 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_34), __pyx_n_s__join); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_19), __pyx_n_s__join); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_7 = PySequence_GetSlice(__pyx_v_elts, 2, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_elts, 2, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-      PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_2);
-      __Pyx_GIVEREF(__pyx_t_2);
-      __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_7);
+      __Pyx_GIVEREF(__pyx_t_7);
+      __pyx_t_7 = 0;
+      __pyx_t_7 = PyObject_Call(__pyx_t_4, __pyx_t_2, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 363; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_DECREF(__pyx_v_rest);
-      __pyx_v_rest = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_rest = __pyx_t_7;
+      __pyx_t_7 = 0;
 
-      /* "cvcf.pyx":364
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":364
  *                 data['descr'] = elts[1]
  *                 rest = '"'.join(elts[2:])
  *                 if rest.startswith(','): rest = rest[1:]             # <<<<<<<<<<<<<<
  *             else:
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
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-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_rest, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_GetAttr(__pyx_v_rest, __pyx_n_s__startswith); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_54), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_5);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_2));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+      __pyx_t_4 = PyObject_Call(__pyx_t_7, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      if (__pyx_t_4) {
-        __pyx_t_5 = __Pyx_PySequence_GetSlice(__pyx_v_rest, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      if (__pyx_t_5) {
+        __pyx_t_4 = PySequence_GetSlice(__pyx_v_rest, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_v_rest);
-        __pyx_v_rest = __pyx_t_5;
-        __pyx_t_5 = 0;
+        __pyx_v_rest = __pyx_t_4;
+        __pyx_t_4 = 0;
         goto __pyx_L16;
       }
       __pyx_L16:;
@@ -5794,34 +5871,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     }
     /*else*/ {
 
-      /* "cvcf.pyx":366
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":366
  *                 if rest.startswith(','): rest = rest[1:]
  *             else:
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
  *             format = rest
  *             idx += 1
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-      __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_5);
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+      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+      __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_t_4, __pyx_t_7, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 366; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     }
     __pyx_L14:;
 
-    /* "cvcf.pyx":367
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":367
  *             else:
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *             format = rest             # <<<<<<<<<<<<<<
@@ -5832,7 +5909,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __Pyx_DECREF(__pyx_v_format);
     __pyx_v_format = __pyx_v_rest;
 
-    /* "cvcf.pyx":368
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":368
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *             format = rest
  *             idx += 1             # <<<<<<<<<<<<<<
@@ -5845,22 +5922,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_v_idx = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":369
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":369
  *             format = rest
  *             idx += 1
  *             if filter and idx==1: idx=3  # skip number and type fields for FILTER format strings             # <<<<<<<<<<<<<<
  *         if not data['id']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         if not data['descr']:
  */
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_v_filter); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    if (__pyx_t_4) {
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_filter); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__pyx_t_5) {
       __pyx_t_2 = PyObject_RichCompare(__pyx_v_idx, __pyx_int_1, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 369; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_9 = __pyx_t_3;
     } else {
-      __pyx_t_9 = __pyx_t_4;
+      __pyx_t_9 = __pyx_t_5;
     }
     if (__pyx_t_9) {
       __Pyx_INCREF(__pyx_int_3);
@@ -5871,7 +5948,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_L17:;
   }
 
-  /* "cvcf.pyx":370
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":370
  *             idx += 1
  *             if filter and idx==1: idx=3  # skip number and type fields for FILTER format strings
  *         if not data['id']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
@@ -5882,30 +5959,30 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = (!__pyx_t_9);
-  if (__pyx_t_4) {
+  __pyx_t_5 = (!__pyx_t_9);
+  if (__pyx_t_5) {
     __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_39); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_line);
+    PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_7);
+    PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_7);
     __Pyx_GIVEREF(__pyx_t_7);
     __pyx_t_7 = 0;
-    __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_7 = PyObject_Call(__pyx_t_2, __pyx_t_4, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 370; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     goto __pyx_L18;
   }
   __pyx_L18:;
 
-  /* "cvcf.pyx":371
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":371
  *             if filter and idx==1: idx=3  # skip number and type fields for FILTER format strings
  *         if not data['id']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         if not data['descr']:             # <<<<<<<<<<<<<<
@@ -5914,12 +5991,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
   __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 371; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __pyx_t_9 = (!__pyx_t_4);
+  __pyx_t_9 = (!__pyx_t_5);
   if (__pyx_t_9) {
 
-    /* "cvcf.pyx":372
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":372
  *         if not data['id']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         if not data['descr']:
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
@@ -5928,59 +6005,59 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
     __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_39); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
-    __Pyx_GIVEREF(__pyx_t_5);
-    __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
+    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_4);
+    __Pyx_GIVEREF(__pyx_t_4);
+    __pyx_t_4 = 0;
+    __pyx_t_4 = PyObject_Call(__pyx_t_7, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 372; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":373
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":373
  *         if not data['descr']:
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *             data['descr'] = '<none>'             # <<<<<<<<<<<<<<
  *         if not data['type'] and not data['number']:
  *             # fine, ##filter format
  */
-    if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr), ((PyObject *)__pyx_kp_s_55)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 373; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr), ((PyObject *)__pyx_kp_s_27)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 373; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L19;
   }
   __pyx_L19:;
 
-  /* "cvcf.pyx":374
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":374
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *             data['descr'] = '<none>'
  *         if not data['type'] and not data['number']:             # <<<<<<<<<<<<<<
  *             # fine, ##filter format
  *             return FORMAT(data['id'],self.NT_NUMBER,0,"Flag",data['descr'],'.')
  */
-  __pyx_t_5 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__type)); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_4 = (!__pyx_t_9);
-  if (__pyx_t_4) {
-    __pyx_t_5 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+  __pyx_t_4 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__type)); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __pyx_t_5 = (!__pyx_t_9);
+  if (__pyx_t_5) {
+    __pyx_t_4 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 374; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_3 = (!__pyx_t_9);
     __pyx_t_9 = __pyx_t_3;
   } else {
-    __pyx_t_9 = __pyx_t_4;
+    __pyx_t_9 = __pyx_t_5;
   }
   if (__pyx_t_9) {
 
-    /* "cvcf.pyx":376
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":376
  *         if not data['type'] and not data['number']:
  *             # fine, ##filter format
  *             return FORMAT(data['id'],self.NT_NUMBER,0,"Flag",data['descr'],'.')             # <<<<<<<<<<<<<<
@@ -5988,8 +6065,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  */
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__FORMAT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = __Pyx_GetName(__pyx_m, __pyx_n_s__FORMAT); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__id)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -5997,7 +6074,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_t_1 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_10 = PyTuple_New(6); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+    __Pyx_GOTREF(__pyx_t_10);
     PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_7);
@@ -6010,16 +6087,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Flag));
     PyTuple_SET_ITEM(__pyx_t_10, 4, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-    PyTuple_SET_ITEM(__pyx_t_10, 5, ((PyObject *)__pyx_kp_s_9));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+    PyTuple_SET_ITEM(__pyx_t_10, 5, ((PyObject *)__pyx_kp_s_6));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
     __pyx_t_2 = 0;
     __pyx_t_7 = 0;
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_4, __pyx_t_10, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 376; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     __pyx_r = __pyx_t_1;
     __pyx_t_1 = 0;
     goto __pyx_L0;
@@ -6027,7 +6104,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   }
   __pyx_L20:;
 
-  /* "cvcf.pyx":377
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":377
  *             # fine, ##filter format
  *             return FORMAT(data['id'],self.NT_NUMBER,0,"Flag",data['descr'],'.')
  *         if not data['type'] in ["Integer","Float","Character","String","Flag"]:             # <<<<<<<<<<<<<<
@@ -6040,8 +6117,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __Pyx_GOTREF(__pyx_t_10);
   __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_4 = __pyx_t_9;
-  if (!__pyx_t_4) {
+  __pyx_t_5 = __pyx_t_9;
+  if (!__pyx_t_5) {
     __pyx_t_10 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -6049,19 +6126,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_t_3 = __pyx_t_9;
     __pyx_t_9 = __pyx_t_3;
   } else {
-    __pyx_t_9 = __pyx_t_4;
+    __pyx_t_9 = __pyx_t_5;
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   if (!__pyx_t_9) {
     __pyx_t_10 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_n_s__Character), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __pyx_t_3 = __pyx_t_4;
-    __pyx_t_4 = __pyx_t_3;
+    __pyx_t_3 = __pyx_t_5;
+    __pyx_t_5 = __pyx_t_3;
   } else {
-    __pyx_t_4 = __pyx_t_9;
+    __pyx_t_5 = __pyx_t_9;
   }
-  if (!__pyx_t_4) {
+  if (!__pyx_t_5) {
     __pyx_t_10 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_n_s__String), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -6069,23 +6146,23 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_t_3 = __pyx_t_9;
     __pyx_t_9 = __pyx_t_3;
   } else {
-    __pyx_t_9 = __pyx_t_4;
+    __pyx_t_9 = __pyx_t_5;
   }
   if (!__pyx_t_9) {
     __pyx_t_10 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_n_s__Flag), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely((__pyx_t_5 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 377; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __pyx_t_3 = __pyx_t_4;
-    __pyx_t_4 = __pyx_t_3;
+    __pyx_t_3 = __pyx_t_5;
+    __pyx_t_5 = __pyx_t_3;
   } else {
-    __pyx_t_4 = __pyx_t_9;
+    __pyx_t_5 = __pyx_t_9;
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_9 = (!__pyx_t_4);
+  __pyx_t_9 = (!__pyx_t_5);
   if (__pyx_t_9) {
 
-    /* "cvcf.pyx":378
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":378
  *             return FORMAT(data['id'],self.NT_NUMBER,0,"Flag",data['descr'],'.')
  *         if not data['type'] in ["Integer","Float","Character","String","Flag"]:
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
@@ -6094,26 +6171,26 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
     __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_39); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_INCREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_line);
+    PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_10);
+    PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_t_10);
     __Pyx_GIVEREF(__pyx_t_10);
     __pyx_t_10 = 0;
-    __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyObject_Call(__pyx_t_1, __pyx_t_4, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 378; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     goto __pyx_L21;
   }
   __pyx_L21:;
 
-  /* "cvcf.pyx":380
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":380
  *             self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         # I would like a missing-value field, but it isn't there
  *         if data['type'] in ['Integer','Float']: data['missing'] = None    # Do NOT use arbitrary int/float as missing value             # <<<<<<<<<<<<<<
@@ -6122,41 +6199,41 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
   __pyx_t_10 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__type)); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_5 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_n_s__Integer), Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_4 = __pyx_t_9;
-  if (!__pyx_t_4) {
-    __pyx_t_5 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+  __pyx_t_4 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_n_s__Integer), Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __pyx_t_5 = __pyx_t_9;
+  if (!__pyx_t_5) {
+    __pyx_t_4 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely((__pyx_t_9 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     __pyx_t_3 = __pyx_t_9;
     __pyx_t_9 = __pyx_t_3;
   } else {
-    __pyx_t_9 = __pyx_t_4;
+    __pyx_t_9 = __pyx_t_5;
   }
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_4 = __pyx_t_9;
-  if (__pyx_t_4) {
+  __pyx_t_5 = __pyx_t_9;
+  if (__pyx_t_5) {
     if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__missing), Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 380; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L22;
   }
   /*else*/ {
 
-    /* "cvcf.pyx":381
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":381
  *         # I would like a missing-value field, but it isn't there
  *         if data['type'] in ['Integer','Float']: data['missing'] = None    # Do NOT use arbitrary int/float as missing value
  *         else:                                   data['missing'] = '.'             # <<<<<<<<<<<<<<
  *         if not data['number']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         try:
  */
-    if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__missing), ((PyObject *)__pyx_kp_s_9)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (PyDict_SetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__missing), ((PyObject *)__pyx_kp_s_6)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 381; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   __pyx_L22:;
 
-  /* "cvcf.pyx":382
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":382
  *         if data['type'] in ['Integer','Float']: data['missing'] = None    # Do NOT use arbitrary int/float as missing value
  *         else:                                   data['missing'] = '.'
  *         if not data['number']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
@@ -6165,32 +6242,32 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
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   __pyx_t_10 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_9 = (!__pyx_t_4);
+  __pyx_t_9 = (!__pyx_t_5);
   if (__pyx_t_9) {
     __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_39); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_5);
-    __Pyx_GIVEREF(__pyx_t_5);
-    __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_5);
+    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_4);
+    __Pyx_GIVEREF(__pyx_t_4);
+    __pyx_t_4 = 0;
+    __pyx_t_4 = PyObject_Call(__pyx_t_10, __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 382; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
     goto __pyx_L23;
   }
   __pyx_L23:;
 
-  /* "cvcf.pyx":383
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":383
  *         else:                                   data['missing'] = '.'
  *         if not data['number']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         try:             # <<<<<<<<<<<<<<
@@ -6205,39 +6282,39 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __Pyx_XGOTREF(__pyx_save_exc_tb);
     /*try:*/ {
 
-      /* "cvcf.pyx":384
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":384
  *         if not data['number']: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
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  *         except ValueError:
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-      __pyx_t_5 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 384; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
-      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_4 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 384; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 384; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_5);
-      __Pyx_GIVEREF(__pyx_t_5);
-      __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 384; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
-      __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_GOTREF(__pyx_t_1);
+      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
+      __Pyx_GIVEREF(__pyx_t_4);
+      __pyx_t_4 = 0;
+      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 384; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_v_n);
-      __pyx_v_n = __pyx_t_5;
-      __pyx_t_5 = 0;
+      __pyx_v_n = __pyx_t_4;
+      __pyx_t_4 = 0;
 
-      /* "cvcf.pyx":385
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":385
  *         try:
  *             n = int(data['number'])
  *             t = self.NT_NUMBER             # <<<<<<<<<<<<<<
  *         except ValueError:
  *             n = -1
  */
-      __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
-      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 385; __pyx_clineno = __LINE__; goto __pyx_L24_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_v_t);
-      __pyx_v_t = __pyx_t_5;
-      __pyx_t_5 = 0;
+      __pyx_v_t = __pyx_t_4;
+      __pyx_t_4 = 0;
     }
     __Pyx_XDECREF(__pyx_save_exc_type); __pyx_save_exc_type = 0;
     __Pyx_XDECREF(__pyx_save_exc_value); __pyx_save_exc_value = 0;
@@ -6248,9 +6325,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":386
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":386
  *             n = int(data['number'])
  *             t = self.NT_NUMBER
  *         except ValueError:             # <<<<<<<<<<<<<<
@@ -6260,12 +6337,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_t_11 = PyErr_ExceptionMatches(__pyx_builtin_ValueError);
     if (__pyx_t_11) {
       __Pyx_AddTraceback("cvcf.VCF.parse_format");
-      if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_1, &__pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
-      __Pyx_GOTREF(__pyx_t_5);
+      if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_1, &__pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 386; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_GOTREF(__pyx_t_10);
 
-      /* "cvcf.pyx":387
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":387
  *             t = self.NT_NUMBER
  *         except ValueError:
  *             n = -1             # <<<<<<<<<<<<<<
@@ -6276,7 +6353,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
       __Pyx_DECREF(__pyx_v_n);
       __pyx_v_n = __pyx_int_neg_1;
 
-      /* "cvcf.pyx":388
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":388
  *         except ValueError:
  *             n = -1
  *             if data['number'] == '.':                   t = self.NT_UNKNOWN             # <<<<<<<<<<<<<<
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  */
       __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 388; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 388; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 388; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 388; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
@@ -6299,7 +6376,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
         goto __pyx_L34;
       }
 
-      /* "cvcf.pyx":389
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":389
  *             n = -1
  *             if data['number'] == '.':                   t = self.NT_UNKNOWN
  *             elif data['number'] == '#alleles':          t = self.NT_ALLELES             # <<<<<<<<<<<<<<
@@ -6308,7 +6385,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
       __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 389; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_kp_s_56), Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 389; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_kp_s_28), Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 389; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 389; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
@@ -6322,7 +6399,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
         goto __pyx_L34;
       }
 
-      /* "cvcf.pyx":390
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":390
  *             if data['number'] == '.':                   t = self.NT_UNKNOWN
  *             elif data['number'] == '#alleles':          t = self.NT_ALLELES
  *             elif data['number'] == '#nonref_alleles':   t = self.NT_NR_ALLELES             # <<<<<<<<<<<<<<
@@ -6331,7 +6408,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
       __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_57), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_29), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 390; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
@@ -6345,7 +6422,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
         goto __pyx_L34;
       }
 
-      /* "cvcf.pyx":391
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":391
  *             elif data['number'] == '#alleles':          t = self.NT_ALLELES
  *             elif data['number'] == '#nonref_alleles':   t = self.NT_NR_ALLELES
  *             elif data['number'] == '#genotypes':        t = self.NT_GENOTYPES             # <<<<<<<<<<<<<<
@@ -6354,7 +6431,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
       __pyx_t_2 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_kp_s_58), Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __pyx_t_7 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_kp_s_30), Py_EQ); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 391; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
@@ -6368,7 +6445,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
         goto __pyx_L34;
       }
 
-      /* "cvcf.pyx":392
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":392
  *             elif data['number'] == '#nonref_alleles':   t = self.NT_NR_ALLELES
  *             elif data['number'] == '#genotypes':        t = self.NT_GENOTYPES
  *             elif data['number'] == '#phased_genotypes': t = self.NT_PHASED_GENOTYPES             # <<<<<<<<<<<<<<
@@ -6377,7 +6454,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
       __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__number)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_59), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_7, ((PyObject *)__pyx_kp_s_31), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __pyx_t_9 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_9 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 392; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
@@ -6392,7 +6469,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
       }
       /*else*/ {
 
-        /* "cvcf.pyx":394
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":394
  *             elif data['number'] == '#phased_genotypes': t = self.NT_PHASED_GENOTYPES
  *             else:
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)             # <<<<<<<<<<<<<<
@@ -6401,24 +6478,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  */
         __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_39); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+        __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_21); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+        __Pyx_GOTREF(__pyx_t_12);
         __Pyx_INCREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_7);
         __Pyx_GIVEREF(__pyx_t_7);
         __pyx_t_7 = 0;
-        __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
+        __pyx_t_7 = PyObject_Call(__pyx_t_2, __pyx_t_12, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 394; __pyx_clineno = __LINE__; goto __pyx_L26_except_error;}
         __Pyx_GOTREF(__pyx_t_7);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
+        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       }
       __pyx_L34:;
-      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       goto __pyx_L25_exception_handled;
@@ -6437,7 +6514,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
     __pyx_L31_try_end:;
   }
 
-  /* "cvcf.pyx":395
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":395
  *             else:
  *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
  *         return FORMAT(data['id'],t,n,data['type'],data['descr'],data['missing'])             # <<<<<<<<<<<<<<
@@ -6449,14 +6526,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __Pyx_GOTREF(__pyx_t_10);
   __pyx_t_1 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__id)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_5 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__type)); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_5);
+  __pyx_t_4 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__type)); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_7 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__descr)); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __pyx_t_12 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_data), ((PyObject *)__pyx_n_s__missing)); if (!__pyx_t_12) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
   __pyx_t_2 = PyTuple_New(6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
   __Pyx_GIVEREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_v_t);
@@ -6465,20 +6542,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __Pyx_INCREF(__pyx_v_n);
   PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_n);
   __Pyx_GIVEREF(__pyx_v_n);
-  PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_5);
-  __Pyx_GIVEREF(__pyx_t_5);
+  PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_2, 4, __pyx_t_7);
   __Pyx_GIVEREF(__pyx_t_7);
   PyTuple_SET_ITEM(__pyx_t_2, 5, __pyx_t_12);
   __Pyx_GIVEREF(__pyx_t_12);
   __pyx_t_1 = 0;
-  __pyx_t_5 = 0;
+  __pyx_t_4 = 0;
   __pyx_t_7 = 0;
   __pyx_t_12 = 0;
-  __pyx_t_12 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_12 = PyObject_Call(__pyx_t_10, __pyx_t_2, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 395; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_r = __pyx_t_12;
   __pyx_t_12 = 0;
   goto __pyx_L0;
@@ -6488,7 +6565,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_5);
+  __Pyx_XDECREF(__pyx_t_4);
   __Pyx_XDECREF(__pyx_t_7);
   __Pyx_XDECREF(__pyx_t_10);
   __Pyx_XDECREF(__pyx_t_12);
@@ -6508,7 +6585,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":398
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":398
  * 
  * 
  *     def format_format( self, fmt, filter=False ):             # <<<<<<<<<<<<<<
@@ -6516,9 +6593,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_2parse_format(PyObject *__pyx_self, PyObjec
  *         if fmt.number != None and not filter:
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_3format_format = {__Pyx_NAMESTR("format_format"), (PyCFunction)__pyx_pf_4cvcf_3VCF_3format_format, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_format_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_format_format = {__Pyx_NAMESTR("format_format"), (PyCFunction)__pyx_pf_4cvcf_3VCF_format_format, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_format_format(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_fmt = 0;
   PyObject *__pyx_v_filter = 0;
@@ -6546,7 +6623,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   if (unlikely(__pyx_kwds)) {
     Py_ssize_t kw_args = PyDict_Size(__pyx_kwds);
     PyObject* values[3] = {0,0,0};
-    values[2] = __pyx_k_60;
+    values[2] = __pyx_k_32;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
       case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
@@ -6578,7 +6655,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_v_fmt = values[1];
     __pyx_v_filter = values[2];
   } else {
-    __pyx_v_filter = __pyx_k_60;
+    __pyx_v_filter = __pyx_k_32;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  3:
       __pyx_v_filter = PyTuple_GET_ITEM(__pyx_args, 2);
@@ -6597,13 +6674,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   __Pyx_RefNannyFinishContext();
   return NULL;
   __pyx_L4_argument_unpacking_done:;
-  __pyx_v_values = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_values = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_nmb = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_format = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_k = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_v = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":399
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":399
  * 
  *     def format_format( self, fmt, filter=False ):
  *         values = [('ID',fmt.id)]             # <<<<<<<<<<<<<<
@@ -6613,7 +6690,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_fmt, __pyx_n_s__id); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__ID));
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s__ID));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__ID));
@@ -6622,14 +6699,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   __pyx_t_1 = 0;
   __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 399; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
+  PyList_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
+  __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_v_values));
   __pyx_v_values = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":400
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":400
  *     def format_format( self, fmt, filter=False ):
  *         values = [('ID',fmt.id)]
  *         if fmt.number != None and not filter:             # <<<<<<<<<<<<<<
@@ -6652,7 +6729,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   }
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":401
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":401
  *         values = [('ID',fmt.id)]
  *         if fmt.number != None and not filter:
  *             if fmt.numbertype == self.NT_UNKNOWN: nmb = "."             # <<<<<<<<<<<<<<
@@ -6670,13 +6747,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 401; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
       __Pyx_DECREF(__pyx_v_nmb);
-      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_9);
+      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_6);
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":402
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":402
  *         if fmt.number != None and not filter:
  *             if fmt.numbertype == self.NT_UNKNOWN: nmb = "."
  *             elif fmt.numbertype == self.NT_NUMBER: nmb = str(fmt.number)             # <<<<<<<<<<<<<<
@@ -6697,20 +6774,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
       __pyx_t_2 = PyObject_GetAttr(__pyx_v_fmt, __pyx_n_s__number); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 402; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 402; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 402; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 402; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_v_nmb);
       __pyx_v_nmb = __pyx_t_2;
       __pyx_t_2 = 0;
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":403
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":403
  *             if fmt.numbertype == self.NT_UNKNOWN: nmb = "."
  *             elif fmt.numbertype == self.NT_NUMBER: nmb = str(fmt.number)
  *             elif fmt.numbertype == self.NT_ALLELES: nmb = "#alleles"             # <<<<<<<<<<<<<<
@@ -6728,13 +6805,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 403; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_56));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_28));
       __Pyx_DECREF(__pyx_v_nmb);
-      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_56);
+      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_28);
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":404
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":404
  *             elif fmt.numbertype == self.NT_NUMBER: nmb = str(fmt.number)
  *             elif fmt.numbertype == self.NT_ALLELES: nmb = "#alleles"
  *             elif fmt.numbertype == self.NT_NR_ALLELES: nmb = "#nonref_alleles"             # <<<<<<<<<<<<<<
@@ -6752,13 +6829,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 404; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_57));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_29));
       __Pyx_DECREF(__pyx_v_nmb);
-      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_57);
+      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_29);
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":405
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":405
  *             elif fmt.numbertype == self.NT_ALLELES: nmb = "#alleles"
  *             elif fmt.numbertype == self.NT_NR_ALLELES: nmb = "#nonref_alleles"
  *             elif fmt.numbertype == self.NT_GENOTYPES: nmb = "#genotypes"             # <<<<<<<<<<<<<<
@@ -6776,13 +6853,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_6); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 405; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     if (__pyx_t_4) {
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_58));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_30));
       __Pyx_DECREF(__pyx_v_nmb);
-      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_58);
+      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_30);
       goto __pyx_L7;
     }
 
-    /* "cvcf.pyx":406
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":406
  *             elif fmt.numbertype == self.NT_NR_ALLELES: nmb = "#nonref_alleles"
  *             elif fmt.numbertype == self.NT_GENOTYPES: nmb = "#genotypes"
  *             elif fmt.numbertype == self.NT_PHASED_GENOTYPES: nmb = "#phased_genotypes"             # <<<<<<<<<<<<<<
@@ -6800,14 +6877,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 406; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_59));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_31));
       __Pyx_DECREF(__pyx_v_nmb);
-      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_59);
+      __pyx_v_nmb = ((PyObject *)__pyx_kp_s_31);
       goto __pyx_L7;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":408
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":408
  *             elif fmt.numbertype == self.NT_PHASED_GENOTYPES: nmb = "#phased_genotypes"
  *             else:
  *                 raise ValueError("Unknown number type encountered: %s" % fmt.numbertype)             # <<<<<<<<<<<<<<
@@ -6816,24 +6893,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
  */
       __pyx_t_2 = PyObject_GetAttr(__pyx_v_fmt, __pyx_n_s__numbertype); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_61), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_33), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_1));
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+      __Pyx_GOTREF(__pyx_t_2);
       PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_1));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
       __pyx_t_1 = 0;
-      __pyx_t_1 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_Raise(__pyx_t_1, 0, 0);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       {__pyx_filename = __pyx_f[0]; __pyx_lineno = 408; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     __pyx_L7:;
 
-    /* "cvcf.pyx":409
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":409
  *             else:
  *                 raise ValueError("Unknown number type encountered: %s" % fmt.numbertype)
  *             values.append( ('Number',nmb) )             # <<<<<<<<<<<<<<
@@ -6844,17 +6921,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
       PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
     }
     __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     __Pyx_INCREF(((PyObject *)__pyx_n_s__Number));
     PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_n_s__Number));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Number));
     __Pyx_INCREF(__pyx_v_nmb);
     PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_nmb);
     __Pyx_GIVEREF(__pyx_v_nmb);
-    __pyx_t_7 = PyList_Append(__pyx_v_values, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+    __pyx_t_7 = PyList_Append(((PyObject *)__pyx_v_values), __pyx_t_1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 409; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":410
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":410
  *                 raise ValueError("Unknown number type encountered: %s" % fmt.numbertype)
  *             values.append( ('Number',nmb) )
  *             values.append( ('Type', fmt.type) )             # <<<<<<<<<<<<<<
@@ -6867,20 +6944,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __pyx_t_1 = PyObject_GetAttr(__pyx_v_fmt, __pyx_n_s__type); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(((PyObject *)__pyx_n_s__Type));
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s__Type));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Type));
     PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_7 = PyList_Append(__pyx_v_values, ((PyObject *)__pyx_t_2)); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __pyx_t_7 = PyList_Append(((PyObject *)__pyx_v_values), __pyx_t_2); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 410; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     goto __pyx_L6;
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":411
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":411
  *             values.append( ('Number',nmb) )
  *             values.append( ('Type', fmt.type) )
  *         values.append( ('Description', '"' + fmt.description + '"') )             # <<<<<<<<<<<<<<
@@ -6892,24 +6969,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   }
   __pyx_t_2 = PyObject_GetAttr(__pyx_v_fmt, __pyx_n_s__description); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyNumber_Add(((PyObject *)__pyx_kp_s_34), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyNumber_Add(((PyObject *)__pyx_kp_s_19), __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyNumber_Add(__pyx_t_1, ((PyObject *)__pyx_kp_s_34)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyNumber_Add(__pyx_t_1, ((PyObject *)__pyx_kp_s_19)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Description));
   PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_n_s__Description));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Description));
   PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_7 = PyList_Append(__pyx_v_values, ((PyObject *)__pyx_t_1)); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_7 = PyList_Append(((PyObject *)__pyx_v_values), __pyx_t_1); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 411; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":412
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":412
  *             values.append( ('Type', fmt.type) )
  *         values.append( ('Description', '"' + fmt.description + '"') )
  *         if self._version == 33:             # <<<<<<<<<<<<<<
@@ -6925,7 +7002,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":413
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":413
  *         values.append( ('Description', '"' + fmt.description + '"') )
  *         if self._version == 33:
  *             format = ",".join([v for k,v in values])             # <<<<<<<<<<<<<<
@@ -6936,10 +7013,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    if (unlikely(__pyx_v_values == Py_None)) {
-      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+    if (likely(((PyObject *)__pyx_v_values) != Py_None)) {
+      __pyx_t_8 = 0; __pyx_t_6 = ((PyObject *)__pyx_v_values); __Pyx_INCREF(__pyx_t_6);
+    } else {
+      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_8 = 0; __pyx_t_6 = ((PyObject *)__pyx_v_values); __Pyx_INCREF(__pyx_t_6);
     for (;;) {
       if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_6)) break;
       __pyx_t_9 = PyList_GET_ITEM(__pyx_t_6, __pyx_t_8); __Pyx_INCREF(__pyx_t_9); __pyx_t_8++;
@@ -6975,15 +7053,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     }
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+    __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(((PyObject *)__pyx_t_1));
     PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_1));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
     __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_6, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 413; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_v_format);
     __pyx_v_format = __pyx_t_1;
     __pyx_t_1 = 0;
@@ -6991,7 +7069,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   }
   /*else*/ {
 
-    /* "cvcf.pyx":415
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":415
  *             format = ",".join([v for k,v in values])
  *         else:
  *             format = "<" + (",".join( ["%s=%s" % (k,v) for (k,v) in values] )) + ">"             # <<<<<<<<<<<<<<
@@ -7002,10 +7080,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_6 = PyList_New(0); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-    if (unlikely(__pyx_v_values == Py_None)) {
-      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+    if (likely(((PyObject *)__pyx_v_values) != Py_None)) {
+      __pyx_t_8 = 0; __pyx_t_2 = ((PyObject *)__pyx_v_values); __Pyx_INCREF(__pyx_t_2);
+    } else {
+      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_8 = 0; __pyx_t_2 = ((PyObject *)__pyx_v_values); __Pyx_INCREF(__pyx_t_2);
     for (;;) {
       if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_2)) break;
       __pyx_t_9 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_8); __Pyx_INCREF(__pyx_t_9); __pyx_t_8++;
@@ -7038,34 +7117,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
         __pyx_t_10 = 0;
       }
       __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_v_k);
       PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_k);
       __Pyx_GIVEREF(__pyx_v_k);
       __Pyx_INCREF(__pyx_v_v);
       PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_v_v);
       __Pyx_GIVEREF(__pyx_v_v);
-      __pyx_t_10 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_62), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_34), __pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-      __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       if (unlikely(PyList_Append(__pyx_t_6, (PyObject*)__pyx_t_10))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
     }
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(((PyObject *)__pyx_t_6));
     PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_6));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_6));
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_6 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-    __pyx_t_2 = PyNumber_Add(((PyObject *)__pyx_kp_s_27), __pyx_t_6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_2 = PyNumber_Add(((PyObject *)__pyx_kp_s_16), __pyx_t_6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyNumber_Add(__pyx_t_2, ((PyObject *)__pyx_kp_s_30)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PyNumber_Add(__pyx_t_2, ((PyObject *)__pyx_kp_s_18)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 415; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_v_format);
@@ -7074,7 +7153,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":416
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":416
  *         else:
  *             format = "<" + (",".join( ["%s=%s" % (k,v) for (k,v) in values] )) + ">"
  *         return format             # <<<<<<<<<<<<<<
@@ -7109,7 +7188,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
   return __pyx_r;
 }
 
-/* "cvcf.pyx":418
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":418
  *         return format
  * 
  *     def get_expected(self, format, formatdict, alt):             # <<<<<<<<<<<<<<
@@ -7117,9 +7196,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_3format_format(PyObject *__pyx_self, PyObje
  *         if fmt.numbertype == self.NT_UNKNOWN: return -1
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_4get_expected = {__Pyx_NAMESTR("get_expected"), (PyCFunction)__pyx_pf_4cvcf_3VCF_4get_expected, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_get_expected(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_get_expected = {__Pyx_NAMESTR("get_expected"), (PyCFunction)__pyx_pf_4cvcf_3VCF_get_expected, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_get_expected(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_format = 0;
   PyObject *__pyx_v_formatdict = 0;
@@ -7195,7 +7274,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_fmt = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":419
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":419
  * 
  *     def get_expected(self, format, formatdict, alt):
  *         fmt = formatdict[format]             # <<<<<<<<<<<<<<
@@ -7208,7 +7287,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   __pyx_v_fmt = __pyx_t_1;
   __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":420
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":420
  *     def get_expected(self, format, formatdict, alt):
  *         fmt = formatdict[format]
  *         if fmt.numbertype == self.NT_UNKNOWN: return -1             # <<<<<<<<<<<<<<
@@ -7234,7 +7313,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":421
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":421
  *         fmt = formatdict[format]
  *         if fmt.numbertype == self.NT_UNKNOWN: return -1
  *         if fmt.numbertype == self.NT_NUMBER: return fmt.number             # <<<<<<<<<<<<<<
@@ -7262,7 +7341,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L7:;
 
-  /* "cvcf.pyx":422
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":422
  *         if fmt.numbertype == self.NT_UNKNOWN: return -1
  *         if fmt.numbertype == self.NT_NUMBER: return fmt.number
  *         if fmt.numbertype == self.NT_ALLELES: return len(alt)+1             # <<<<<<<<<<<<<<
@@ -7291,7 +7370,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":423
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":423
  *         if fmt.numbertype == self.NT_NUMBER: return fmt.number
  *         if fmt.numbertype == self.NT_ALLELES: return len(alt)+1
  *         if fmt.numbertype == self.NT_NR_ALLELES: return len(alt)             # <<<<<<<<<<<<<<
@@ -7320,7 +7399,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L9:;
 
-  /* "cvcf.pyx":424
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":424
  *         if fmt.numbertype == self.NT_ALLELES: return len(alt)+1
  *         if fmt.numbertype == self.NT_NR_ALLELES: return len(alt)
  *         if fmt.numbertype == self.NT_GENOTYPES: return ((len(alt)+1)*(len(alt)+2)) // 2             # <<<<<<<<<<<<<<
@@ -7350,7 +7429,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L10:;
 
-  /* "cvcf.pyx":425
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":425
  *         if fmt.numbertype == self.NT_NR_ALLELES: return len(alt)
  *         if fmt.numbertype == self.NT_GENOTYPES: return ((len(alt)+1)*(len(alt)+2)) // 2
  *         if fmt.numbertype == self.NT_PHASED_GENOTYPES: return (len(alt)+1)*(len(alt)+1)             # <<<<<<<<<<<<<<
@@ -7380,7 +7459,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   }
   __pyx_L11:;
 
-  /* "cvcf.pyx":426
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":426
  *         if fmt.numbertype == self.NT_GENOTYPES: return ((len(alt)+1)*(len(alt)+2)) // 2
  *         if fmt.numbertype == self.NT_PHASED_GENOTYPES: return (len(alt)+1)*(len(alt)+1)
  *         return 0             # <<<<<<<<<<<<<<
@@ -7407,7 +7486,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":429
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":429
  * 
  * 
  *     def _add_definition(self, formatdict, key, data, line ):             # <<<<<<<<<<<<<<
@@ -7415,9 +7494,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_4get_expected(PyObject *__pyx_self, PyObjec
  *         self.error(line,self.ERROR_UNKNOWN_KEY,key)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_5_add_definition = {__Pyx_NAMESTR("_add_definition"), (PyCFunction)__pyx_pf_4cvcf_3VCF_5_add_definition, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF__add_definition(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF__add_definition = {__Pyx_NAMESTR("_add_definition"), (PyCFunction)__pyx_pf_4cvcf_3VCF__add_definition, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF__add_definition(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_formatdict = 0;
   PyObject *__pyx_v_key = 0;
@@ -7500,7 +7579,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __pyx_L4_argument_unpacking_done:;
   __Pyx_INCREF(__pyx_v_data);
 
-  /* "cvcf.pyx":430
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":430
  * 
  *     def _add_definition(self, formatdict, key, data, line ):
  *         if key in formatdict: return             # <<<<<<<<<<<<<<
@@ -7516,7 +7595,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":431
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":431
  *     def _add_definition(self, formatdict, key, data, line ):
  *         if key in formatdict: return
  *         self.error(line,self.ERROR_UNKNOWN_KEY,key)             # <<<<<<<<<<<<<<
@@ -7528,7 +7607,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ERROR_UNKNOWN_KEY); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_4 = PyTuple_New(3); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(__pyx_v_line);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_line);
   __Pyx_GIVEREF(__pyx_v_line);
@@ -7538,13 +7617,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_v_key);
   __Pyx_GIVEREF(__pyx_v_key);
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_4, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 431; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":432
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":432
  *         if key in formatdict: return
  *         self.error(line,self.ERROR_UNKNOWN_KEY,key)
  *         if data == None:             # <<<<<<<<<<<<<<
@@ -7557,7 +7636,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_1) {
 
-    /* "cvcf.pyx":433
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":433
  *         self.error(line,self.ERROR_UNKNOWN_KEY,key)
  *         if data == None:
  *             formatdict[key] = FORMAT(key,self.NT_NUMBER,0,"Flag","(Undefined tag)",".")             # <<<<<<<<<<<<<<
@@ -7569,7 +7648,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 433; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_2 = PyTuple_New(6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 433; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_key);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_key);
     __Pyx_GIVEREF(__pyx_v_key);
@@ -7581,21 +7660,21 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __Pyx_INCREF(((PyObject *)__pyx_n_s__Flag));
     PyTuple_SET_ITEM(__pyx_t_2, 3, ((PyObject *)__pyx_n_s__Flag));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Flag));
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_63));
-    PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_63));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_63));
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-    PyTuple_SET_ITEM(__pyx_t_2, 5, ((PyObject *)__pyx_kp_s_9));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_35));
+    PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_35));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_35));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+    PyTuple_SET_ITEM(__pyx_t_2, 5, ((PyObject *)__pyx_kp_s_6));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 433; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 433; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (PyObject_SetItem(__pyx_v_formatdict, __pyx_v_key, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 433; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":434
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":434
  *         if data == None:
  *             formatdict[key] = FORMAT(key,self.NT_NUMBER,0,"Flag","(Undefined tag)",".")
  *             return             # <<<<<<<<<<<<<<
@@ -7609,7 +7688,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   }
   __pyx_L7:;
 
-  /* "cvcf.pyx":435
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":435
  *             formatdict[key] = FORMAT(key,self.NT_NUMBER,0,"Flag","(Undefined tag)",".")
  *             return
  *         if data == []: data = [""]             # unsure what type -- say string             # <<<<<<<<<<<<<<
@@ -7636,7 +7715,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   }
   __pyx_L8:;
 
-  /* "cvcf.pyx":436
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":436
  *             return
  *         if data == []: data = [""]             # unsure what type -- say string
  *         if type(data[0]) == type(0.0):             # <<<<<<<<<<<<<<
@@ -7655,7 +7734,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_1) {
 
-    /* "cvcf.pyx":437
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":437
  *         if data == []: data = [""]             # unsure what type -- say string
  *         if type(data[0]) == type(0.0):
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Float","(Undefined tag)",None)             # <<<<<<<<<<<<<<
@@ -7667,7 +7746,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_UNKNOWN); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_2 = PyTuple_New(6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_key);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_key);
     __Pyx_GIVEREF(__pyx_v_key);
@@ -7679,21 +7758,21 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __Pyx_INCREF(((PyObject *)__pyx_n_s__Float));
     PyTuple_SET_ITEM(__pyx_t_2, 3, ((PyObject *)__pyx_n_s__Float));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Float));
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_63));
-    PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_63));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_63));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_35));
+    PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_35));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_35));
     __Pyx_INCREF(Py_None);
     PyTuple_SET_ITEM(__pyx_t_2, 5, Py_None);
     __Pyx_GIVEREF(Py_None);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (PyObject_SetItem(__pyx_v_formatdict, __pyx_v_key, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 437; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":438
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":438
  *         if type(data[0]) == type(0.0):
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Float","(Undefined tag)",None)
  *             return             # <<<<<<<<<<<<<<
@@ -7707,7 +7786,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   }
   __pyx_L9:;
 
-  /* "cvcf.pyx":439
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":439
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Float","(Undefined tag)",None)
  *             return
  *         if type(data[0]) == type(0):             # <<<<<<<<<<<<<<
@@ -7723,7 +7802,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_1) {
 
-    /* "cvcf.pyx":440
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":440
  *             return
  *         if type(data[0]) == type(0):
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Integer","(Undefined tag)",None)             # <<<<<<<<<<<<<<
@@ -7735,7 +7814,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_UNKNOWN); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __pyx_t_3 = PyTuple_New(6); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_key);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_key);
     __Pyx_GIVEREF(__pyx_v_key);
@@ -7747,21 +7826,21 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
     __Pyx_INCREF(((PyObject *)__pyx_n_s__Integer));
     PyTuple_SET_ITEM(__pyx_t_3, 3, ((PyObject *)__pyx_n_s__Integer));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Integer));
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_63));
-    PyTuple_SET_ITEM(__pyx_t_3, 4, ((PyObject *)__pyx_kp_s_63));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_63));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_35));
+    PyTuple_SET_ITEM(__pyx_t_3, 4, ((PyObject *)__pyx_kp_s_35));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_35));
     __Pyx_INCREF(Py_None);
     PyTuple_SET_ITEM(__pyx_t_3, 5, Py_None);
     __Pyx_GIVEREF(Py_None);
     __pyx_t_4 = 0;
-    __pyx_t_4 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     if (PyObject_SetItem(__pyx_v_formatdict, __pyx_v_key, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 440; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":441
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":441
  *         if type(data[0]) == type(0):
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Integer","(Undefined tag)",None)
  *             return             # <<<<<<<<<<<<<<
@@ -7775,7 +7854,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   }
   __pyx_L10:;
 
-  /* "cvcf.pyx":442
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":442
  *             formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"Integer","(Undefined tag)",None)
  *             return
  *         formatdict[key] = FORMAT(key,self.NT_UNKNOWN,-1,"String","(Undefined tag)",".")             # <<<<<<<<<<<<<<
@@ -7787,7 +7866,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_UNKNOWN); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_2 = PyTuple_New(6); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_key);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_key);
   __Pyx_GIVEREF(__pyx_v_key);
@@ -7799,17 +7878,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   __Pyx_INCREF(((PyObject *)__pyx_n_s__String));
   PyTuple_SET_ITEM(__pyx_t_2, 3, ((PyObject *)__pyx_n_s__String));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__String));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_63));
-  PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_63));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_63));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-  PyTuple_SET_ITEM(__pyx_t_2, 5, ((PyObject *)__pyx_kp_s_9));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_35));
+  PyTuple_SET_ITEM(__pyx_t_2, 4, ((PyObject *)__pyx_kp_s_35));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_35));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+  PyTuple_SET_ITEM(__pyx_t_2, 5, ((PyObject *)__pyx_kp_s_6));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_4, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (PyObject_SetItem(__pyx_v_formatdict, __pyx_v_key, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 442; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
@@ -7828,7 +7907,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
   return __pyx_r;
 }
 
-/* "cvcf.pyx":446
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":446
  * 
  *     # todo: trim trailing missing values
  *     def format_formatdata( self, data, format, key=True, value=True, separator=":" ):             # <<<<<<<<<<<<<<
@@ -7836,9 +7915,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_5_add_definition(PyObject *__pyx_self, PyOb
  *         if type(data) == type([]): # for FORMAT field, make data with dummy values
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_6format_formatdata = {__Pyx_NAMESTR("format_formatdata"), (PyCFunction)__pyx_pf_4cvcf_3VCF_6format_formatdata, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_format_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_format_formatdata = {__Pyx_NAMESTR("format_formatdata"), (PyCFunction)__pyx_pf_4cvcf_3VCF_format_formatdata, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_format_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_data = 0;
   PyObject *__pyx_v_format = 0;
@@ -7870,9 +7949,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   if (unlikely(__pyx_kwds)) {
     Py_ssize_t kw_args = PyDict_Size(__pyx_kwds);
     PyObject* values[6] = {0,0,0,0,0,0};
-    values[3] = __pyx_k_64;
-    values[4] = __pyx_k_65;
-    values[5] = ((PyObject *)__pyx_kp_s_4);
+    values[3] = __pyx_k_36;
+    values[4] = __pyx_k_37;
+    values[5] = ((PyObject *)__pyx_kp_s_3);
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  6: values[5] = PyTuple_GET_ITEM(__pyx_args, 5);
       case  5: values[4] = PyTuple_GET_ITEM(__pyx_args, 4);
@@ -7926,9 +8005,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_v_value = values[4];
     __pyx_v_separator = values[5];
   } else {
-    __pyx_v_key = __pyx_k_64;
-    __pyx_v_value = __pyx_k_65;
-    __pyx_v_separator = ((PyObject *)__pyx_kp_s_4);
+    __pyx_v_key = __pyx_k_36;
+    __pyx_v_value = __pyx_k_37;
+    __pyx_v_separator = ((PyObject *)__pyx_kp_s_3);
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  6:
       __pyx_v_separator = PyTuple_GET_ITEM(__pyx_args, 5);
@@ -7953,15 +8032,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   return NULL;
   __pyx_L4_argument_unpacking_done:;
   __Pyx_INCREF(__pyx_v_data);
-  __pyx_v_output = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
-  __pyx_v_sdata = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
-  __pyx_v_d = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_output = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_sdata = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_d = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_k = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_idx = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_v = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_last = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":447
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":447
  *     # todo: trim trailing missing values
  *     def format_formatdata( self, data, format, key=True, value=True, separator=":" ):
  *         output, sdata = [], []             # <<<<<<<<<<<<<<
@@ -7979,7 +8058,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   __pyx_v_sdata = __pyx_t_2;
   __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":448
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":448
  *     def format_formatdata( self, data, format, key=True, value=True, separator=":" ):
  *         output, sdata = [], []
  *         if type(data) == type([]): # for FORMAT field, make data with dummy values             # <<<<<<<<<<<<<<
@@ -7995,7 +8074,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":449
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":449
  *         output, sdata = [], []
  *         if type(data) == type([]): # for FORMAT field, make data with dummy values
  *             d = {}             # <<<<<<<<<<<<<<
@@ -8008,7 +8087,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_v_d = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":450
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":450
  *         if type(data) == type([]): # for FORMAT field, make data with dummy values
  *             d = {}
  *             for k in data: d[k] = []             # <<<<<<<<<<<<<<
@@ -8046,7 +8125,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     }
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":451
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":451
  *             d = {}
  *             for k in data: d[k] = []
  *             data = d             # <<<<<<<<<<<<<<
@@ -8060,7 +8139,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":453
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":453
  *             data = d
  *         # convert missing values; and silently add definitions if required
  *         for k in data:             # <<<<<<<<<<<<<<
@@ -8092,7 +8171,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_v_k = __pyx_t_2;
     __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":454
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":454
  *         # convert missing values; and silently add definitions if required
  *         for k in data:
  *             self._add_definition( format, k, data[k], "(output)" )             # <<<<<<<<<<<<<<
@@ -8104,7 +8183,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_5 = PyObject_GetItem(__pyx_v_data, __pyx_v_k); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_6 = PyTuple_New(4); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+    __Pyx_GOTREF(__pyx_t_6);
     __Pyx_INCREF(__pyx_v_format);
     PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_format);
     __Pyx_GIVEREF(__pyx_v_format);
@@ -8113,17 +8192,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __Pyx_GIVEREF(__pyx_v_k);
     PyTuple_SET_ITEM(__pyx_t_6, 2, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_66));
-    PyTuple_SET_ITEM(__pyx_t_6, 3, ((PyObject *)__pyx_kp_s_66));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_66));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_38));
+    PyTuple_SET_ITEM(__pyx_t_6, 3, ((PyObject *)__pyx_kp_s_38));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_38));
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_2, __pyx_t_6, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 454; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":455
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":455
  *         for k in data:
  *             self._add_definition( format, k, data[k], "(output)" )
  *             for idx,v in enumerate(data[k]):             # <<<<<<<<<<<<<<
@@ -8168,7 +8247,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
       __pyx_t_5 = __pyx_t_6;
       __pyx_t_6 = 0;
 
-      /* "cvcf.pyx":456
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":456
  *             self._add_definition( format, k, data[k], "(output)" )
  *             for idx,v in enumerate(data[k]):
  *                 if v == format[k].missingvalue: data[k][idx] = "."             # <<<<<<<<<<<<<<
@@ -8188,7 +8267,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
       if (__pyx_t_3) {
         __pyx_t_6 = PyObject_GetItem(__pyx_v_data, __pyx_v_k); if (!__pyx_t_6) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 456; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
-        if (PyObject_SetItem(__pyx_t_6, __pyx_v_idx, ((PyObject *)__pyx_kp_s_9)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 456; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (PyObject_SetItem(__pyx_t_6, __pyx_v_idx, ((PyObject *)__pyx_kp_s_6)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 456; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         goto __pyx_L13;
       }
@@ -8199,7 +8278,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":458
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":458
  *                 if v == format[k].missingvalue: data[k][idx] = "."
  *         # make sure GT comes first; and ensure fixed ordering; also convert GT data back to string
  *         for k in data:             # <<<<<<<<<<<<<<
@@ -8231,7 +8310,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_v_k = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":459
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":459
  *         # make sure GT comes first; and ensure fixed ordering; also convert GT data back to string
  *         for k in data:
  *             if k != 'GT': sdata.append( (k,data[k]) )             # <<<<<<<<<<<<<<
@@ -8249,22 +8328,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
       __pyx_t_5 = PyObject_GetItem(__pyx_v_data, __pyx_v_k); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_k);
       PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_k);
       __Pyx_GIVEREF(__pyx_v_k);
       PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_5 = 0;
-      __pyx_t_9 = PyList_Append(__pyx_v_sdata, ((PyObject *)__pyx_t_2)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_sdata), __pyx_t_2); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 459; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L16;
     }
     __pyx_L16:;
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":460
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":460
  *         for k in data:
  *             if k != 'GT': sdata.append( (k,data[k]) )
  *         sdata.sort()             # <<<<<<<<<<<<<<
@@ -8276,7 +8355,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   }
   __pyx_t_9 = PyList_Sort(((PyObject *)__pyx_v_sdata)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 460; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":461
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":461
  *             if k != 'GT': sdata.append( (k,data[k]) )
  *         sdata.sort()
  *         if 'GT' in data:             # <<<<<<<<<<<<<<
@@ -8286,7 +8365,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   __pyx_t_3 = ((PySequence_Contains(__pyx_v_data, ((PyObject *)__pyx_n_s__GT)))); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 461; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":462
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":462
  *         sdata.sort()
  *         if 'GT' in data:
  *             sdata = [('GT',map(self.convertGTback,data['GT']))] + sdata             # <<<<<<<<<<<<<<
@@ -8298,18 +8377,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_2 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__GT)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __Pyx_GOTREF(__pyx_t_5);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_1 = 0;
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_builtin_map, __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_INCREF(((PyObject *)__pyx_n_s__GT));
     PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_n_s__GT));
     __Pyx_GIVEREF(((PyObject *)__pyx_n_s__GT));
@@ -8318,8 +8397,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_2 = 0;
     __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-    PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_5));
-    __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
+    PyList_SET_ITEM(__pyx_t_2, 0, __pyx_t_5);
+    __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_5 = 0;
     __pyx_t_5 = PyNumber_Add(((PyObject *)__pyx_t_2), ((PyObject *)__pyx_v_sdata)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 462; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_5));
@@ -8331,17 +8410,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   }
   __pyx_L17:;
 
-  /* "cvcf.pyx":463
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":463
  *         if 'GT' in data:
  *             sdata = [('GT',map(self.convertGTback,data['GT']))] + sdata
  *         for k,v in sdata:             # <<<<<<<<<<<<<<
  *             if v == []: v = None
  *             if key and value:
  */
-  if (unlikely(__pyx_v_sdata == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 463; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+  if (likely(((PyObject *)__pyx_v_sdata) != Py_None)) {
+    __pyx_t_4 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_sdata); __Pyx_INCREF(__pyx_t_5);
+  } else {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 463; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_4 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_sdata); __Pyx_INCREF(__pyx_t_5);
   for (;;) {
     if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_5)) break;
     __pyx_t_2 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
@@ -8374,7 +8454,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
       __pyx_t_6 = 0;
     }
 
-    /* "cvcf.pyx":464
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":464
  *             sdata = [('GT',map(self.convertGTback,data['GT']))] + sdata
  *         for k,v in sdata:
  *             if v == []: v = None             # <<<<<<<<<<<<<<
@@ -8396,7 +8476,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     }
     __pyx_L20:;
 
-    /* "cvcf.pyx":465
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":465
  *         for k,v in sdata:
  *             if v == []: v = None
  *             if key and value:             # <<<<<<<<<<<<<<
@@ -8412,7 +8492,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     }
     if (__pyx_t_11) {
 
-      /* "cvcf.pyx":466
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":466
  *             if v == []: v = None
  *             if key and value:
  *                 if v != None: output.append( k+"="+','.join(map(str,v)) )             # <<<<<<<<<<<<<<
@@ -8427,41 +8507,41 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
         if (unlikely(__pyx_v_output == Py_None)) {
           PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
         }
-        __pyx_t_6 = PyNumber_Add(__pyx_v_k, ((PyObject *)__pyx_kp_s_14)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyNumber_Add(__pyx_v_k, ((PyObject *)__pyx_kp_s_8)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_2), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-        __Pyx_INCREF(((PyObject *)((PyObject*)(&PyString_Type))));
-        PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)((PyObject*)(&PyString_Type))));
-        __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyString_Type))));
+        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_INCREF(((PyObject *)((PyObject*)&PyString_Type)));
+        PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)((PyObject*)&PyString_Type)));
+        __Pyx_GIVEREF(((PyObject *)((PyObject*)&PyString_Type)));
         __Pyx_INCREF(__pyx_v_v);
         PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_v);
         __Pyx_GIVEREF(__pyx_v_v);
-        __pyx_t_8 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_Call(__pyx_builtin_map, __pyx_t_1, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __Pyx_GOTREF(__pyx_t_1);
         PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_8);
         __Pyx_GIVEREF(__pyx_t_8);
         __pyx_t_8 = 0;
-        __pyx_t_8 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_8 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_8);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_1 = PyNumber_Add(__pyx_t_6, __pyx_t_8); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-        __pyx_t_9 = PyList_Append(__pyx_v_output, __pyx_t_1); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_output), __pyx_t_1); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 466; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         goto __pyx_L22;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":467
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":467
  *             if key and value:
  *                 if v != None: output.append( k+"="+','.join(map(str,v)) )
  *                 else: output.append( k )             # <<<<<<<<<<<<<<
@@ -8471,13 +8551,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
         if (unlikely(__pyx_v_output == Py_None)) {
           PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
         }
-        __pyx_t_9 = PyList_Append(__pyx_v_output, __pyx_v_k); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_output), __pyx_v_k); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 467; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_L22:;
       goto __pyx_L21;
     }
 
-    /* "cvcf.pyx":468
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":468
  *                 if v != None: output.append( k+"="+','.join(map(str,v)) )
  *                 else: output.append( k )
  *             elif key: output.append(k)             # <<<<<<<<<<<<<<
@@ -8489,11 +8569,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
       if (unlikely(__pyx_v_output == Py_None)) {
         PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 468; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
       }
-      __pyx_t_9 = PyList_Append(__pyx_v_output, __pyx_v_k); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_output), __pyx_v_k); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 468; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       goto __pyx_L21;
     }
 
-    /* "cvcf.pyx":469
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":469
  *                 else: output.append( k )
  *             elif key: output.append(k)
  *             elif value:             # <<<<<<<<<<<<<<
@@ -8503,7 +8583,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_11 = __Pyx_PyObject_IsTrue(__pyx_v_value); if (unlikely(__pyx_t_11 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 469; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     if (__pyx_t_11) {
 
-      /* "cvcf.pyx":470
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":470
  *             elif key: output.append(k)
  *             elif value:
  *                 if v != None: output.append( ','.join(map(str,v)) )             # <<<<<<<<<<<<<<
@@ -8521,32 +8601,32 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
         __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_2), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_8));
-        __Pyx_INCREF(((PyObject *)((PyObject*)(&PyString_Type))));
-        PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)((PyObject*)(&PyString_Type))));
-        __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyString_Type))));
+        __Pyx_GOTREF(__pyx_t_8);
+        __Pyx_INCREF(((PyObject *)((PyObject*)&PyString_Type)));
+        PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)((PyObject*)&PyString_Type)));
+        __Pyx_GIVEREF(((PyObject *)((PyObject*)&PyString_Type)));
         __Pyx_INCREF(__pyx_v_v);
         PyTuple_SET_ITEM(__pyx_t_8, 1, __pyx_v_v);
         __Pyx_GIVEREF(__pyx_v_v);
-        __pyx_t_6 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyObject_Call(__pyx_builtin_map, __pyx_t_8, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
-        __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
         __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_8));
+        __Pyx_GOTREF(__pyx_t_8);
         PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_t_6);
         __Pyx_GIVEREF(__pyx_t_6);
         __pyx_t_6 = 0;
-        __pyx_t_6 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = PyObject_Call(__pyx_t_1, __pyx_t_8, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_6);
         __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
-        __pyx_t_9 = PyList_Append(__pyx_v_output, __pyx_t_6); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+        __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_output), __pyx_t_6); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 470; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
         goto __pyx_L23;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":471
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":471
  *             elif value:
  *                 if v != None: output.append( ','.join(map(str,v)) )
  *                 else: output.append( "." )                    # should not happen             # <<<<<<<<<<<<<<
@@ -8556,7 +8636,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
         if (unlikely(__pyx_v_output == Py_None)) {
           PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 471; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
         }
-        __pyx_t_9 = PyList_Append(__pyx_v_output, ((PyObject *)__pyx_kp_s_9)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 471; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyList_Append(((PyObject *)__pyx_v_output), ((PyObject *)__pyx_kp_s_6)); if (unlikely(__pyx_t_9 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 471; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
       __pyx_L23:;
       goto __pyx_L21;
@@ -8565,7 +8645,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   }
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "cvcf.pyx":473
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":473
  *                 else: output.append( "." )                    # should not happen
  *         # snip off trailing missing data
  *         while len(output) > 1:             # <<<<<<<<<<<<<<
@@ -8580,7 +8660,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_11 = (__pyx_t_4 > 1);
     if (!__pyx_t_11) break;
 
-    /* "cvcf.pyx":474
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":474
  *         # snip off trailing missing data
  *         while len(output) > 1:
  *             last = output[-1].replace(',','').replace('.','')             # <<<<<<<<<<<<<<
@@ -8592,20 +8672,38 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     __pyx_t_6 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__replace); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_k_tuple_67), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+    PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_kp_s_2));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_1));
+    PyTuple_SET_ITEM(__pyx_t_5, 1, ((PyObject *)__pyx_kp_s_1));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_1));
+    __pyx_t_8 = PyObject_Call(__pyx_t_6, __pyx_t_5, NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_6 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__replace); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_k_tuple_68), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_GetAttr(__pyx_t_8, __pyx_n_s__replace); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+    __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_8);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+    PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_kp_s_6));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_1));
+    PyTuple_SET_ITEM(__pyx_t_8, 1, ((PyObject *)__pyx_kp_s_1));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_1));
+    __pyx_t_6 = PyObject_Call(__pyx_t_5, __pyx_t_8, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_6);
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
     __Pyx_DECREF(__pyx_v_last);
-    __pyx_v_last = __pyx_t_5;
-    __pyx_t_5 = 0;
+    __pyx_v_last = __pyx_t_6;
+    __pyx_t_6 = 0;
 
-    /* "cvcf.pyx":475
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":475
  *         while len(output) > 1:
  *             last = output[-1].replace(',','').replace('.','')
  *             if len(last)>0: break             # <<<<<<<<<<<<<<
@@ -8620,22 +8718,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
     }
     __pyx_L26:;
 
-    /* "cvcf.pyx":476
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":476
  *             last = output[-1].replace(',','').replace('.','')
  *             if len(last)>0: break
  *             output = output[:-1]             # <<<<<<<<<<<<<<
  *         return separator.join(output)
  * 
  */
-    __pyx_t_5 = __Pyx_PySequence_GetSlice(((PyObject *)__pyx_v_output), 0, -1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __pyx_t_6 = PySequence_GetSlice(((PyObject *)__pyx_v_output), 0, -1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 476; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_6));
     __Pyx_DECREF(((PyObject *)__pyx_v_output));
-    __pyx_v_output = __pyx_t_5;
-    __pyx_t_5 = 0;
+    __pyx_v_output = __pyx_t_6;
+    __pyx_t_6 = 0;
   }
   __pyx_L25_break:;
 
-  /* "cvcf.pyx":477
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":477
  *             if len(last)>0: break
  *             output = output[:-1]
  *         return separator.join(output)             # <<<<<<<<<<<<<<
@@ -8643,19 +8741,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
  * 
  */
   __Pyx_XDECREF(__pyx_r);
-  __pyx_t_5 = PyObject_GetAttr(__pyx_v_separator, __pyx_n_s__join); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+  __pyx_t_6 = PyObject_GetAttr(__pyx_v_separator, __pyx_n_s__join); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_6);
+  __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_8);
   __Pyx_INCREF(((PyObject *)__pyx_v_output));
-  PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_v_output));
+  PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_v_output));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_output));
-  __pyx_t_8 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_8);
-  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-  __pyx_r = __pyx_t_8;
-  __pyx_t_8 = 0;
+  __pyx_t_5 = PyObject_Call(__pyx_t_6, __pyx_t_8, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 477; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_5);
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
+  __pyx_r = __pyx_t_5;
+  __pyx_t_5 = 0;
   goto __pyx_L0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -8682,7 +8780,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
   return __pyx_r;
 }
 
-/* "cvcf.pyx":480
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":480
  * 
  * 
  *     def enter_default_format(self):             # <<<<<<<<<<<<<<
@@ -8690,9 +8788,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_6format_formatdata(PyObject *__pyx_self, Py
  *                   FORMAT('GQ',self.NT_NUMBER,1,'Integer','Genotype Quality',-1),
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_7enter_default_format = {__Pyx_NAMESTR("enter_default_format"), (PyCFunction)__pyx_pf_4cvcf_3VCF_7enter_default_format, METH_O, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_enter_default_format(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_enter_default_format = {__Pyx_NAMESTR("enter_default_format"), (PyCFunction)__pyx_pf_4cvcf_3VCF_enter_default_format, METH_O, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_enter_default_format(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_v_f;
   PyObject *__pyx_r = NULL;
   Py_ssize_t __pyx_t_1;
@@ -8708,7 +8806,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_self = __pyx_self;
   __pyx_v_f = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":481
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":481
  * 
  *     def enter_default_format(self):
  *         for f in [FORMAT('GT',self.NT_NUMBER,1,'String','Genotype','.'),             # <<<<<<<<<<<<<<
@@ -8720,7 +8818,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_4 = PyTuple_New(6); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__GT));
   PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_n_s__GT));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__GT));
@@ -8735,16 +8833,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Genotype));
   PyTuple_SET_ITEM(__pyx_t_4, 4, ((PyObject *)__pyx_n_s__Genotype));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Genotype));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-  PyTuple_SET_ITEM(__pyx_t_4, 5, ((PyObject *)__pyx_kp_s_9));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+  PyTuple_SET_ITEM(__pyx_t_4, 5, ((PyObject *)__pyx_kp_s_6));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_4, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":482
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":482
  *     def enter_default_format(self):
  *         for f in [FORMAT('GT',self.NT_NUMBER,1,'String','Genotype','.'),
  *                   FORMAT('GQ',self.NT_NUMBER,1,'Integer','Genotype Quality',-1),             # <<<<<<<<<<<<<<
@@ -8756,7 +8854,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_5 = PyTuple_New(6); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+  __Pyx_GOTREF(__pyx_t_5);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__GQ));
   PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_n_s__GQ));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__GQ));
@@ -8768,19 +8866,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Integer));
   PyTuple_SET_ITEM(__pyx_t_5, 3, ((PyObject *)__pyx_n_s__Integer));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Integer));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_69));
-  PyTuple_SET_ITEM(__pyx_t_5, 4, ((PyObject *)__pyx_kp_s_69));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_69));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_39));
+  PyTuple_SET_ITEM(__pyx_t_5, 4, ((PyObject *)__pyx_kp_s_39));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_39));
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_t_5, 5, __pyx_int_neg_1);
   __Pyx_GIVEREF(__pyx_int_neg_1);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_4, __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 482; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "cvcf.pyx":483
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":483
  *         for f in [FORMAT('GT',self.NT_NUMBER,1,'String','Genotype','.'),
  *                   FORMAT('GQ',self.NT_NUMBER,1,'Integer','Genotype Quality',-1),
  *                   FORMAT('DP',self.NT_NUMBER,1,'Integer','Read depth at this position for this sample',-1),             # <<<<<<<<<<<<<<
@@ -8792,7 +8890,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __pyx_t_6 = PyTuple_New(6); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+  __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__DP));
   PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_n_s__DP));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__DP));
@@ -8804,19 +8902,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Integer));
   PyTuple_SET_ITEM(__pyx_t_6, 3, ((PyObject *)__pyx_n_s__Integer));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Integer));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_70));
-  PyTuple_SET_ITEM(__pyx_t_6, 4, ((PyObject *)__pyx_kp_s_70));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_70));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_40));
+  PyTuple_SET_ITEM(__pyx_t_6, 4, ((PyObject *)__pyx_kp_s_40));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_40));
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_t_6, 5, __pyx_int_neg_1);
   __Pyx_GIVEREF(__pyx_int_neg_1);
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_t_5, __pyx_t_6, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 483; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
-  /* "cvcf.pyx":484
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":484
  *                   FORMAT('GQ',self.NT_NUMBER,1,'Integer','Genotype Quality',-1),
  *                   FORMAT('DP',self.NT_NUMBER,1,'Integer','Read depth at this position for this sample',-1),
  *                   FORMAT('HQ',self.NT_UNKNOWN,-1,'Integer','Haplotype Quality',-1),    # unknown number, since may be haploid             # <<<<<<<<<<<<<<
@@ -8828,7 +8926,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_UNKNOWN); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __pyx_t_7 = PyTuple_New(6); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+  __Pyx_GOTREF(__pyx_t_7);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__HQ));
   PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_n_s__HQ));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__HQ));
@@ -8840,19 +8938,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __Pyx_INCREF(((PyObject *)__pyx_n_s__Integer));
   PyTuple_SET_ITEM(__pyx_t_7, 3, ((PyObject *)__pyx_n_s__Integer));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__Integer));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_71));
-  PyTuple_SET_ITEM(__pyx_t_7, 4, ((PyObject *)__pyx_kp_s_71));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_71));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_41));
+  PyTuple_SET_ITEM(__pyx_t_7, 4, ((PyObject *)__pyx_kp_s_41));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_41));
   __Pyx_INCREF(__pyx_int_neg_1);
   PyTuple_SET_ITEM(__pyx_t_7, 5, __pyx_int_neg_1);
   __Pyx_GIVEREF(__pyx_int_neg_1);
   __pyx_t_5 = 0;
-  __pyx_t_5 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(__pyx_t_6, __pyx_t_7, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 484; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "cvcf.pyx":485
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":485
  *                   FORMAT('DP',self.NT_NUMBER,1,'Integer','Read depth at this position for this sample',-1),
  *                   FORMAT('HQ',self.NT_UNKNOWN,-1,'Integer','Haplotype Quality',-1),    # unknown number, since may be haploid
  *                   FORMAT('FT',self.NT_NUMBER,1,'String','Sample Genotype Filter','.')]:             # <<<<<<<<<<<<<<
@@ -8864,7 +8962,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_6 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__NT_NUMBER); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __pyx_t_8 = PyTuple_New(6); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_8));
+  __Pyx_GOTREF(__pyx_t_8);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__FT));
   PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_n_s__FT));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__FT));
@@ -8876,17 +8974,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __Pyx_INCREF(((PyObject *)__pyx_n_s__String));
   PyTuple_SET_ITEM(__pyx_t_8, 3, ((PyObject *)__pyx_n_s__String));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__String));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_72));
-  PyTuple_SET_ITEM(__pyx_t_8, 4, ((PyObject *)__pyx_kp_s_72));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_72));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-  PyTuple_SET_ITEM(__pyx_t_8, 5, ((PyObject *)__pyx_kp_s_9));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_42));
+  PyTuple_SET_ITEM(__pyx_t_8, 4, ((PyObject *)__pyx_kp_s_42));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_42));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+  PyTuple_SET_ITEM(__pyx_t_8, 5, ((PyObject *)__pyx_kp_s_6));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
   __pyx_t_6 = 0;
-  __pyx_t_6 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_Call(__pyx_t_7, __pyx_t_8, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 485; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
+  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   __pyx_t_8 = PyList_New(5); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_8));
   PyList_SET_ITEM(__pyx_t_8, 0, __pyx_t_3);
@@ -8904,11 +9002,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   __pyx_t_4 = 0;
   __pyx_t_5 = 0;
   __pyx_t_6 = 0;
-  __pyx_t_1 = 0; __pyx_t_6 = ((PyObject *)__pyx_t_8); __Pyx_INCREF(__pyx_t_6);
+  if (likely(((PyObject *)__pyx_t_8) != Py_None)) {
+    __pyx_t_1 = 0; __pyx_t_6 = ((PyObject *)__pyx_t_8); __Pyx_INCREF(__pyx_t_6);
+  } else {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 481; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
   __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
   for (;;) {
 
-    /* "cvcf.pyx":481
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":481
  * 
  *     def enter_default_format(self):
  *         for f in [FORMAT('GT',self.NT_NUMBER,1,'String','Genotype','.'),             # <<<<<<<<<<<<<<
@@ -8921,7 +9023,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
     __pyx_v_f = __pyx_t_8;
     __pyx_t_8 = 0;
 
-    /* "cvcf.pyx":486
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":486
  *                   FORMAT('HQ',self.NT_UNKNOWN,-1,'Integer','Haplotype Quality',-1),    # unknown number, since may be haploid
  *                   FORMAT('FT',self.NT_NUMBER,1,'String','Sample Genotype Filter','.')]:
  *             if f.id not in self._format:             # <<<<<<<<<<<<<<
@@ -8937,7 +9039,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_9) {
 
-      /* "cvcf.pyx":487
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":487
  *                   FORMAT('FT',self.NT_NUMBER,1,'String','Sample Genotype Filter','.')]:
  *             if f.id not in self._format:
  *                 self._format[f.id] = f             # <<<<<<<<<<<<<<
@@ -8976,7 +9078,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
   return __pyx_r;
 }
 
-/* "cvcf.pyx":489
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":489
  *                 self._format[f.id] = f
  * 
  *     def parse_header( self, line ):             # <<<<<<<<<<<<<<
@@ -8984,9 +9086,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_7enter_default_format(PyObject *__pyx_self,
  *         elts = line[2:].split('=')
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_8parse_header = {__Pyx_NAMESTR("parse_header"), (PyCFunction)__pyx_pf_4cvcf_3VCF_8parse_header, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse_header = {__Pyx_NAMESTR("parse_header"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse_header, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_line = 0;
   PyObject *__pyx_v_elts;
@@ -8996,8 +9098,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObjec
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
-  PyObject *__pyx_t_4 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_t_4;
   PyObject *__pyx_t_5 = NULL;
   static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__self,&__pyx_n_s__line,0};
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@@ -9047,122 +9149,134 @@ static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObjec
   __pyx_v_value = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_f = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":490
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":490
  * 
  *     def parse_header( self, line ):
  *         assert line.startswith('##')             # <<<<<<<<<<<<<<
  *         elts = line[2:].split('=')
  *         key = elts[0].strip()
  */
-  #ifndef CYTHON_WITHOUT_ASSERTIONS
+  #ifndef PYREX_WITHOUT_ASSERTIONS
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_74), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_43));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_43));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_43));
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (unlikely(!__pyx_t_3)) {
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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     PyErr_SetNone(PyExc_AssertionError);
     {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   #endif
 
-  /* "cvcf.pyx":491
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":491
  *     def parse_header( self, line ):
  *         assert line.startswith('##')
  *         elts = line[2:].split('=')             # <<<<<<<<<<<<<<
  *         key = elts[0].strip()
  *         value = '='.join(elts[1:]).strip()
  */
-  __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_line, 2, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PySequence_GetSlice(__pyx_v_line, 2, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_2 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__split); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_8));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
+  __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_75), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_v_elts);
-  __pyx_v_elts = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_v_elts = __pyx_t_1;
+  __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":492
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":492
  *         assert line.startswith('##')
  *         elts = line[2:].split('=')
  *         key = elts[0].strip()             # <<<<<<<<<<<<<<
  *         value = '='.join(elts[1:]).strip()
  *         if key == "fileformat":
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+  __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 492; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+  __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":493
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":493
  *         elts = line[2:].split('=')
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+  __Pyx_GOTREF(__pyx_t_2);
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+  __Pyx_GOTREF(__pyx_t_3);
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-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 495; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+    __Pyx_GOTREF(__pyx_t_3);
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+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-      /* "cvcf.pyx":496
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       goto __pyx_L7;
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-    /* "cvcf.pyx":497
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":497
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-      /* "cvcf.pyx":498
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       goto __pyx_L7;
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-    /* "cvcf.pyx":499
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":499
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  *                 self._version = 40
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+    __pyx_t_3 = PyObject_RichCompare(__pyx_v_value, ((PyObject *)__pyx_kp_s_46), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 499; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
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+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-      /* "cvcf.pyx":501
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":501
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-      /* "cvcf.pyx":503
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-  /* "cvcf.pyx":510
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+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_INCREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_line);
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     PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_v_value);
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-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_5, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 511; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __Pyx_DECREF(__pyx_v_f);
-    __pyx_v_f = __pyx_t_1;
-    __pyx_t_1 = 0;
+    __pyx_v_f = __pyx_t_3;
+    __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":512
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":512
  *         elif key == "FORMAT":
  *             f = self.parse_format(line, value)
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-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_5 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__id); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    if (PyObject_SetItem(__pyx_t_1, __pyx_t_5, __pyx_v_f) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    if (PyObject_SetItem(__pyx_t_3, __pyx_t_5, __pyx_v_f) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 512; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     goto __pyx_L6;
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   /*else*/ {
 
-    /* "cvcf.pyx":515
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":515
  *         else:
  *             # keep other keys in the header field
  *             self._header.append( (key,value) )             # <<<<<<<<<<<<<<
@@ -9433,19 +9547,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObjec
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     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_key);
-    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_key);
+    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_key);
     __Pyx_GIVEREF(__pyx_v_key);
     __Pyx_INCREF(__pyx_v_value);
-    PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_value);
+    PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_value);
     __Pyx_GIVEREF(__pyx_v_value);
-    __pyx_t_4 = __Pyx_PyObject_Append(__pyx_t_5, ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_4);
+    __pyx_t_2 = __Pyx_PyObject_Append(__pyx_t_5, __pyx_t_3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 515; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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@@ -9454,7 +9568,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_8parse_header(PyObject *__pyx_self, PyObjec
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   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_4);
+  __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_5);
   __Pyx_AddTraceback("cvcf.VCF.parse_header");
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   return __pyx_r;
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-/* "cvcf.pyx":518
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":518
  * 
  * 
  *     def write_header( self, stream ):             # <<<<<<<<<<<<<<
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-static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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-static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_write_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
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+static PyObject *__pyx_pf_4cvcf_3VCF_write_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_v_key;
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   __pyx_v_label = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_f = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":519
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":519
  * 
  *     def write_header( self, stream ):
  *         stream.write("##fileformat=VCFv%s.%s\n" % (self._version // 10, self._version % 10))             # <<<<<<<<<<<<<<
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   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_3);
   __Pyx_GIVEREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_4);
   __Pyx_GIVEREF(__pyx_t_4);
   __pyx_t_3 = 0;
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_80), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_48), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_4));
   __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
   __pyx_t_4 = 0;
-  __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 519; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":520
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":520
  *     def write_header( self, stream ):
  *         stream.write("##fileformat=VCFv%s.%s\n" % (self._version // 10, self._version % 10))
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_key);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_key);
     __Pyx_GIVEREF(__pyx_v_key);
     __Pyx_INCREF(__pyx_v_value);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_value);
     __Pyx_GIVEREF(__pyx_v_value);
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+    __pyx_t_1 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_49), __pyx_t_3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 520; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 520; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_1));
     __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
     __pyx_t_1 = 0;
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+    __pyx_t_1 = PyObject_Call(__pyx_t_4, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 520; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":521
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":521
  *         stream.write("##fileformat=VCFv%s.%s\n" % (self._version // 10, self._version % 10))
  *         for key,value in self._header: stream.write("##%s=%s\n" % (key,value))
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   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__INFO));
@@ -9691,7 +9805,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
   __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___filter); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  __Pyx_GOTREF(__pyx_t_3);
   PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
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   __Pyx_INCREF(((PyObject *)__pyx_n_s__FILTER));
@@ -9701,7 +9815,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
   __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_4 = PyTuple_New(2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __Pyx_INCREF(((PyObject *)__pyx_n_s__FORMAT));
@@ -9710,16 +9824,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
   __pyx_t_2 = 0;
   __pyx_t_2 = PyList_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
-  PyList_SET_ITEM(__pyx_t_2, 1, ((PyObject *)__pyx_t_3));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
-  PyList_SET_ITEM(__pyx_t_2, 2, ((PyObject *)__pyx_t_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
+  PyList_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+  __Pyx_GIVEREF(__pyx_t_1);
+  PyList_SET_ITEM(__pyx_t_2, 1, __pyx_t_3);
+  __Pyx_GIVEREF(__pyx_t_3);
+  PyList_SET_ITEM(__pyx_t_2, 2, __pyx_t_4);
+  __Pyx_GIVEREF(__pyx_t_4);
   __pyx_t_1 = 0;
   __pyx_t_3 = 0;
   __pyx_t_4 = 0;
-  __pyx_t_5 = 0; __pyx_t_4 = ((PyObject *)__pyx_t_2); __Pyx_INCREF(__pyx_t_4);
+  if (likely(((PyObject *)__pyx_t_2) != Py_None)) {
+    __pyx_t_5 = 0; __pyx_t_4 = ((PyObject *)__pyx_t_2); __Pyx_INCREF(__pyx_t_4);
+  } else {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 521; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  }
   __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
   for (;;) {
     if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_4)) break;
@@ -9753,7 +9871,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
       __pyx_t_1 = 0;
     }
 
-    /* "cvcf.pyx":522
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":522
  *         for key,value in self._header: stream.write("##%s=%s\n" % (key,value))
  *         for var,label in [(self._info,"INFO"),(self._filter,"FILTER"),(self._format,"FORMAT")]:
  *             for f in var.itervalues(): stream.write("##%s=%s\n" % (label,self.format_format(f,filter=(label=="FILTER"))))             # <<<<<<<<<<<<<<
@@ -9795,7 +9913,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
       __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__format_format); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+      __Pyx_GOTREF(__pyx_t_6);
       __Pyx_INCREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
@@ -9805,31 +9923,31 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
       __Pyx_GOTREF(__pyx_t_9);
       if (PyDict_SetItem(__pyx_t_8, ((PyObject *)__pyx_n_s__filter), __pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __pyx_t_9 = PyEval_CallObjectWithKeywords(__pyx_t_3, ((PyObject *)__pyx_t_6), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyEval_CallObjectWithKeywords(__pyx_t_3, __pyx_t_6, ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
       __pyx_t_8 = PyTuple_New(2); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_8));
+      __Pyx_GOTREF(__pyx_t_8);
       __Pyx_INCREF(__pyx_v_label);
       PyTuple_SET_ITEM(__pyx_t_8, 0, __pyx_v_label);
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       __Pyx_GIVEREF(__pyx_t_9);
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_81), ((PyObject *)__pyx_t_8)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_49), __pyx_t_8); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-      __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __pyx_t_8 = PyTuple_New(1); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_8));
+      __Pyx_GOTREF(__pyx_t_8);
       PyTuple_SET_ITEM(__pyx_t_8, 0, ((PyObject *)__pyx_t_9));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_8), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyObject_Call(__pyx_t_1, __pyx_t_8, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 522; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_8)); __pyx_t_8 = 0;
+      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     }
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
@@ -9859,7 +9977,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":525
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":525
  * 
  * 
  *     def parse_heading( self, line ):             # <<<<<<<<<<<<<<
@@ -9867,9 +9985,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_9write_header(PyObject *__pyx_self, PyObjec
  *         assert not line.startswith('##')
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_10parse_heading = {__Pyx_NAMESTR("parse_heading"), (PyCFunction)__pyx_pf_4cvcf_3VCF_10parse_heading, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse_heading = {__Pyx_NAMESTR("parse_heading"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse_heading, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_line = 0;
   PyObject *__pyx_v_headings;
@@ -9881,11 +9999,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
-  int __pyx_t_3;
-  Py_ssize_t __pyx_t_4;
-  int __pyx_t_5;
+  PyObject *__pyx_t_3 = NULL;
+  int __pyx_t_4;
+  Py_ssize_t __pyx_t_5;
   int __pyx_t_6;
-  PyObject *__pyx_t_7 = NULL;
+  int __pyx_t_7;
   Py_ssize_t __pyx_t_8;
   PyObject *__pyx_t_9 = NULL;
   PyObject *__pyx_t_10 = NULL;
@@ -9939,142 +10057,160 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
   __pyx_v_x = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_y = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":526
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":526
  * 
  *     def parse_heading( self, line ):
  *         assert line.startswith('#')             # <<<<<<<<<<<<<<
  *         assert not line.startswith('##')
  *         headings = line[1:].split('\t')
  */
-  #ifndef CYTHON_WITHOUT_ASSERTIONS
+  #ifndef PYREX_WITHOUT_ASSERTIONS
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_83), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_50));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_50));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_50));
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (unlikely(!__pyx_t_3)) {
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (unlikely(!__pyx_t_4)) {
     PyErr_SetNone(PyExc_AssertionError);
     {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   #endif
 
-  /* "cvcf.pyx":527
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":527
  *     def parse_heading( self, line ):
  *         assert line.startswith('#')
  *         assert not line.startswith('##')             # <<<<<<<<<<<<<<
  *         headings = line[1:].split('\t')
  *         if len(headings)==1 and len(line[1:].split()) >= 9:
  */
-  #ifndef CYTHON_WITHOUT_ASSERTIONS
-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #ifndef PYREX_WITHOUT_ASSERTIONS
+  __pyx_t_3 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_84), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_43));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_43));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_43));
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (unlikely(!(!__pyx_t_3))) {
+  if (unlikely(!(!__pyx_t_4))) {
     PyErr_SetNone(PyExc_AssertionError);
     {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
   #endif
 
-  /* "cvcf.pyx":528
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":528
  *         assert line.startswith('#')
  *         assert not line.startswith('##')
  *         headings = line[1:].split('\t')             # <<<<<<<<<<<<<<
  *         if len(headings)==1 and len(line[1:].split()) >= 9:
  *             self.error(line,self.HEADING_NOT_SEPARATED_BY_TABS)
  */
-  __pyx_t_1 = __Pyx_PySequence_GetSlice(__pyx_v_line, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PySequence_GetSlice(__pyx_v_line, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
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   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_86), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_51));
+  PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_51));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_51));
+  __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_v_headings);
-  __pyx_v_headings = __pyx_t_1;
-  __pyx_t_1 = 0;
+  __pyx_v_headings = __pyx_t_3;
+  __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":529
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":529
  *         assert not line.startswith('##')
  *         headings = line[1:].split('\t')
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-  __pyx_t_4 = PyObject_Length(__pyx_v_headings); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 529; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 529; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 529; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-    __pyx_t_6 = __pyx_t_5;
+    __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 529; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-    __pyx_t_6 = __pyx_t_3;
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-  if (__pyx_t_6) {
+  if (__pyx_t_7) {
 
-    /* "cvcf.pyx":530
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":530
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+    __Pyx_GOTREF(__pyx_t_3);
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     __Pyx_GOTREF(__pyx_t_1);
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     __Pyx_INCREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_line);
+    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_2);
-    __Pyx_GIVEREF(__pyx_t_2);
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-    __Pyx_GOTREF(__pyx_t_2);
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-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
+    __Pyx_GIVEREF(__pyx_t_1);
+    __pyx_t_1 = 0;
+    __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 530; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":531
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":531
  *         if len(headings)==1 and len(line[1:].split()) >= 9:
  *             self.error(line,self.HEADING_NOT_SEPARATED_BY_TABS)
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  *         for i,s in enumerate(self._required):
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+    __pyx_t_1 = PySequence_GetSlice(__pyx_v_line, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 531; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__split); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 531; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
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-    __Pyx_GOTREF(__pyx_t_7);
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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     __Pyx_DECREF(__pyx_v_headings);
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+    __pyx_t_1 = 0;
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-  /* "cvcf.pyx":533
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":533
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  *         for i,s in enumerate(self._required):             # <<<<<<<<<<<<<<
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-  __Pyx_GOTREF(__pyx_t_7);
-  if (PyList_CheckExact(__pyx_t_7) || PyTuple_CheckExact(__pyx_t_7)) {
-    __pyx_t_4 = 0; __pyx_t_1 = __pyx_t_7; __Pyx_INCREF(__pyx_t_1);
+  __pyx_t_1 = __pyx_int_0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___required); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 533; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
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-    __pyx_t_4 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_7); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 533; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_5 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 533; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
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-  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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-      __pyx_t_7 = PyIter_Next(__pyx_t_1);
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+      __pyx_t_2 = PyIter_Next(__pyx_t_3);
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         break;
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-      __Pyx_GOTREF(__pyx_t_7);
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-    __Pyx_INCREF(__pyx_t_2);
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-    __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_2);
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-    __pyx_t_7 = 0;
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+    __Pyx_GOTREF(__pyx_t_2);
+    __Pyx_DECREF(__pyx_t_1);
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-    /* "cvcf.pyx":535
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":535
  *         for i,s in enumerate(self._required):
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  *             if len(headings)<=i or headings[i] != s:             # <<<<<<<<<<<<<<
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-    __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __pyx_t_9 = PyObject_RichCompare(__pyx_t_7, __pyx_v_i, Py_LE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, __pyx_v_i, Py_LE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-    if (!__pyx_t_6) {
+    if (!__pyx_t_7) {
       __pyx_t_9 = PyObject_GetItem(__pyx_v_headings, __pyx_v_i); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_7 = PyObject_RichCompare(__pyx_t_9, __pyx_v_s, Py_NE); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_9, __pyx_v_s, Py_NE); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_7); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-      __pyx_t_5 = __pyx_t_3;
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 535; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_6 = __pyx_t_4;
     } else {
-      __pyx_t_5 = __pyx_t_6;
+      __pyx_t_6 = __pyx_t_7;
     }
-    if (__pyx_t_5) {
+    if (__pyx_t_6) {
 
-      /* "cvcf.pyx":537
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":537
  *             if len(headings)<=i or headings[i] != s:
  * 
  *                 if len(headings) <= i:             # <<<<<<<<<<<<<<
@@ -10156,16 +10292,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
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       __pyx_t_8 = PyObject_Length(__pyx_v_headings); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_7);
-      __pyx_t_9 = PyObject_RichCompare(__pyx_t_7, __pyx_v_i, Py_LE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, __pyx_v_i, Py_LE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
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+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 537; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      if (__pyx_t_5) {
+      if (__pyx_t_6) {
 
-        /* "cvcf.pyx":538
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":538
  * 
  *                 if len(headings) <= i:
  *                     err = "(%sth entry not found)" % (i+1)             # <<<<<<<<<<<<<<
@@ -10174,43 +10310,43 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
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         __pyx_t_9 = PyNumber_Add(__pyx_v_i, __pyx_int_1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 538; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __pyx_t_7 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_88), __pyx_t_9); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 538; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+        __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_53), __pyx_t_9); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 538; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_v_err);
-        __pyx_v_err = ((PyObject *)__pyx_t_7);
-        __pyx_t_7 = 0;
+        __pyx_v_err = ((PyObject *)__pyx_t_2);
+        __pyx_t_2 = 0;
         goto __pyx_L10;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":540
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":540
  *                     err = "(%sth entry not found)" % (i+1)
  *                 else:
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-        __pyx_t_7 = PyObject_GetItem(__pyx_v_headings, __pyx_v_i); if (!__pyx_t_7) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 540; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_7);
+        __pyx_t_2 = PyObject_GetItem(__pyx_v_headings, __pyx_v_i); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 540; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 540; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_7);
-        __Pyx_GIVEREF(__pyx_t_7);
+        __Pyx_GOTREF(__pyx_t_9);
+        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_2);
+        __Pyx_GIVEREF(__pyx_t_2);
         __Pyx_INCREF(__pyx_v_s);
         PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_v_s);
         __Pyx_GIVEREF(__pyx_v_s);
-        __pyx_t_7 = 0;
-        __pyx_t_7 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_89), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 540; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_7));
-        __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+        __pyx_t_2 = 0;
+        __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_54), __pyx_t_9); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 540; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_v_err);
-        __pyx_v_err = ((PyObject *)__pyx_t_7);
-        __pyx_t_7 = 0;
+        __pyx_v_err = ((PyObject *)__pyx_t_2);
+        __pyx_t_2 = 0;
       }
       __pyx_L10:;
 
-      /* "cvcf.pyx":545
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":545
  * 
  *                 # allow FORMAT column to be absent
  *                 if len(headings) == 8:             # <<<<<<<<<<<<<<
@@ -10218,36 +10354,36 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
  *                 else:
  */
       __pyx_t_8 = PyObject_Length(__pyx_v_headings); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 545; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_5 = (__pyx_t_8 == 8);
-      if (__pyx_t_5) {
+      __pyx_t_6 = (__pyx_t_8 == 8);
+      if (__pyx_t_6) {
 
-        /* "cvcf.pyx":546
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":546
  *                 # allow FORMAT column to be absent
  *                 if len(headings) == 8:
  *                     headings.append("FORMAT")             # <<<<<<<<<<<<<<
  *                 else:
  *                     self.error(line,self.BADLY_FORMATTED_HEADING,err)
  */
-        __pyx_t_7 = __Pyx_PyObject_Append(__pyx_v_headings, ((PyObject *)__pyx_n_s__FORMAT)); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 546; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_7);
-        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+        __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_headings, ((PyObject *)__pyx_n_s__FORMAT)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 546; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         goto __pyx_L11;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":548
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":548
  *                     headings.append("FORMAT")
  *                 else:
  *                     self.error(line,self.BADLY_FORMATTED_HEADING,err)             # <<<<<<<<<<<<<<
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  *         self._samples = headings[9:]
  */
-        __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_7);
-        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_90); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_55); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
         __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+        __Pyx_GOTREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
@@ -10257,10 +10393,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
         PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_v_err);
         __Pyx_GIVEREF(__pyx_v_err);
         __pyx_t_9 = 0;
-        __pyx_t_9 = PyObject_Call(__pyx_t_7, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyObject_Call(__pyx_t_2, __pyx_t_10, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 548; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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       __pyx_L11:;
@@ -10268,48 +10404,48 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
     }
     __pyx_L9:;
   }
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":550
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":550
  *                     self.error(line,self.BADLY_FORMATTED_HEADING,err)
  * 
  *         self._samples = headings[9:]             # <<<<<<<<<<<<<<
  *         self._sample2column = dict( [(y,x+9) for x,y in enumerate( self._samples ) ] )
  * 
  */
-  __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_headings, 9, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 550; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___samples, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 550; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_1 = PySequence_GetSlice(__pyx_v_headings, 9, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 550; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___samples, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 550; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":551
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":551
  * 
  *         self._samples = headings[9:]
  *         self._sample2column = dict( [(y,x+9) for x,y in enumerate( self._samples ) ] )             # <<<<<<<<<<<<<<
  * 
  *     def write_heading( self, stream ):
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-  __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
   __Pyx_INCREF(__pyx_int_0);
-  __pyx_t_1 = __pyx_int_0;
+  __pyx_t_3 = __pyx_int_0;
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   __Pyx_GOTREF(__pyx_t_9);
   if (PyList_CheckExact(__pyx_t_9) || PyTuple_CheckExact(__pyx_t_9)) {
-    __pyx_t_4 = 0; __pyx_t_10 = __pyx_t_9; __Pyx_INCREF(__pyx_t_10);
+    __pyx_t_5 = 0; __pyx_t_10 = __pyx_t_9; __Pyx_INCREF(__pyx_t_10);
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-    __pyx_t_4 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_10)) break;
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+      if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_10)) break;
+      __pyx_t_9 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_5); __Pyx_INCREF(__pyx_t_9); __pyx_t_5++;
     } else if (likely(PyTuple_CheckExact(__pyx_t_10))) {
-      if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_10)) break;
-      __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_4); __Pyx_INCREF(__pyx_t_9); __pyx_t_4++;
+      if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_10)) break;
+      __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_5); __Pyx_INCREF(__pyx_t_9); __pyx_t_5++;
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       if (!__pyx_t_9) {
@@ -10321,47 +10457,47 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
     __Pyx_DECREF(__pyx_v_y);
     __pyx_v_y = __pyx_t_9;
     __pyx_t_9 = 0;
-    __Pyx_INCREF(__pyx_t_1);
+    __Pyx_INCREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_v_x);
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+    __pyx_v_x = __pyx_t_3;
+    __pyx_t_9 = PyNumber_Add(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_9);
-    __Pyx_DECREF(__pyx_t_1);
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     __Pyx_GOTREF(__pyx_t_9);
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+    __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_y);
-    PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_y);
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     __Pyx_GIVEREF(__pyx_v_y);
-    PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_9);
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     __Pyx_GIVEREF(__pyx_t_9);
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-    if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_7))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+    if (unlikely(PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_2))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __Pyx_INCREF(((PyObject *)__pyx_t_2));
-  PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)(&PyDict_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_t_1));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_1));
+  __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
   __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-  if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___sample2column, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)&PyDict_Type)), __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___sample2column, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 551; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
-  __Pyx_XDECREF(__pyx_t_7);
+  __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_9);
   __Pyx_XDECREF(__pyx_t_10);
   __Pyx_AddTraceback("cvcf.VCF.parse_heading");
@@ -10378,7 +10514,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
   return __pyx_r;
 }
 
-/* "cvcf.pyx":553
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":553
  *         self._sample2column = dict( [(y,x+9) for x,y in enumerate( self._samples ) ] )
  * 
  *     def write_heading( self, stream ):             # <<<<<<<<<<<<<<
@@ -10386,9 +10522,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_10parse_heading(PyObject *__pyx_self, PyObj
  * 
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_11write_heading = {__Pyx_NAMESTR("write_heading"), (PyCFunction)__pyx_pf_4cvcf_3VCF_11write_heading, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_write_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_write_heading = {__Pyx_NAMESTR("write_heading"), (PyCFunction)__pyx_pf_4cvcf_3VCF_write_heading, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_write_heading(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_r = NULL;
@@ -10441,7 +10577,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObj
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":554
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":554
  * 
  *     def write_heading( self, stream ):
  *         stream.write("#" + "\t".join(self._required + self._samples) + "\n")             # <<<<<<<<<<<<<<
@@ -10450,7 +10586,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObj
  */
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_stream, __pyx_n_s__write); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_85), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_51), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___required); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
@@ -10461,29 +10597,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObj
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
   __Pyx_GIVEREF(__pyx_t_5);
   __pyx_t_5 = 0;
-  __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(__pyx_t_2, __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_kp_s_82), __pyx_t_5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  __pyx_t_4 = PyNumber_Add(((PyObject *)__pyx_kp_s_50), __pyx_t_5); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_4);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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+  __pyx_t_5 = PyNumber_Add(__pyx_t_4, ((PyObject *)__pyx_kp_s_56)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_5);
   __Pyx_GIVEREF(__pyx_t_5);
   __pyx_t_5 = 0;
-  __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(__pyx_t_1, __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 554; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -10502,7 +10638,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObj
   return __pyx_r;
 }
 
-/* "cvcf.pyx":556
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":556
  *         stream.write("#" + "\t".join(self._required + self._samples) + "\n")
  * 
  *     def convertGT(self, GTstring):             # <<<<<<<<<<<<<<
@@ -10510,9 +10646,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_11write_heading(PyObject *__pyx_self, PyObj
  *         try:
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_12convertGT = {__Pyx_NAMESTR("convertGT"), (PyCFunction)__pyx_pf_4cvcf_3VCF_12convertGT, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_convertGT(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_convertGT = {__Pyx_NAMESTR("convertGT"), (PyCFunction)__pyx_pf_4cvcf_3VCF_convertGT, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_convertGT(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_GTstring = 0;
   PyObject *__pyx_v_gts;
@@ -10575,14 +10711,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_gts = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":557
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":557
  * 
  *     def convertGT(self, GTstring):
  *         if GTstring == ".": return ["."]             # <<<<<<<<<<<<<<
  *         try:
  *             gts = gtsRegEx.split(GTstring)
  */
-  __pyx_t_1 = PyObject_RichCompare(__pyx_v_GTstring, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 557; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_GTstring, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 557; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 557; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -10590,9 +10726,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
     __Pyx_XDECREF(__pyx_r);
     __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 557; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-    PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_9));
-    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+    PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_6));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
     __pyx_r = ((PyObject *)__pyx_t_1);
     __pyx_t_1 = 0;
     goto __pyx_L0;
@@ -10600,7 +10736,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":558
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":558
  *     def convertGT(self, GTstring):
  *         if GTstring == ".": return ["."]
  *         try:             # <<<<<<<<<<<<<<
@@ -10615,7 +10751,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
     __Pyx_XGOTREF(__pyx_save_exc_tb);
     /*try:*/ {
 
-      /* "cvcf.pyx":559
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":559
  *         if GTstring == ".": return ["."]
  *         try:
  *             gts = gtsRegEx.split(GTstring)             # <<<<<<<<<<<<<<
@@ -10628,19 +10764,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 559; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_GTstring);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_GTstring);
       __Pyx_GIVEREF(__pyx_v_GTstring);
-      __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 559; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_3, __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 559; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_v_gts);
       __pyx_v_gts = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "cvcf.pyx":560
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":560
  *         try:
  *             gts = gtsRegEx.split(GTstring)
  *             if len(gts) == 1: return [int(gts[0])]             # <<<<<<<<<<<<<<
@@ -10654,13 +10790,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
         __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_gts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 560; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 560; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __Pyx_GOTREF(__pyx_t_1);
         PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
         __pyx_t_4 = 0;
-        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 560; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 560; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 560; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(((PyObject *)__pyx_t_1));
         PyList_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
@@ -10673,7 +10809,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       }
       __pyx_L15:;
 
-      /* "cvcf.pyx":561
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":561
  *             gts = gtsRegEx.split(GTstring)
  *             if len(gts) == 1: return [int(gts[0])]
  *             if len(gts) != 2: raise ValueError()             # <<<<<<<<<<<<<<
@@ -10692,7 +10828,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       }
       __pyx_L16:;
 
-      /* "cvcf.pyx":562
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":562
  *             if len(gts) == 1: return [int(gts[0])]
  *             if len(gts) != 2: raise ValueError()
  *             if gts[0] == "." and gts[1] == ".": return [gts[0],GTstring[len(gts[0]):-len(gts[1])],gts[1]]             # <<<<<<<<<<<<<<
@@ -10701,7 +10837,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
  */
       __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_gts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+      __pyx_t_4 = PyObject_RichCompare(__pyx_t_1, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_2 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_2 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
@@ -10709,7 +10845,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       if (__pyx_t_2) {
         __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_gts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+        __pyx_t_1 = PyObject_RichCompare(__pyx_t_4, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
@@ -10730,7 +10866,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_8 = PyObject_Length(__pyx_t_4); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __pyx_t_4 = __Pyx_PySequence_GetSlice(__pyx_v_GTstring, __pyx_t_5, (-__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+        __pyx_t_4 = PySequence_GetSlice(__pyx_v_GTstring, __pyx_t_5, (-__pyx_t_8)); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_gts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 562; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
         __Pyx_GOTREF(__pyx_t_3);
@@ -10752,7 +10888,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       }
       __pyx_L17:;
 
-      /* "cvcf.pyx":563
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":563
  *             if len(gts) != 2: raise ValueError()
  *             if gts[0] == "." and gts[1] == ".": return [gts[0],GTstring[len(gts[0]):-len(gts[1])],gts[1]]
  *             return [int(gts[0]),GTstring[len(gts[0]):-len(gts[1])],int(gts[1])]             # <<<<<<<<<<<<<<
@@ -10763,13 +10899,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_gts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+      __Pyx_GOTREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_9);
       __Pyx_GIVEREF(__pyx_t_9);
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+      __pyx_t_9 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_3, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_gts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_8 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
@@ -10778,18 +10914,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_3 = __Pyx_PySequence_GetSlice(__pyx_v_GTstring, __pyx_t_8, (-__pyx_t_5)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+      __pyx_t_3 = PySequence_GetSlice(__pyx_v_GTstring, __pyx_t_8, (-__pyx_t_5)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_4 = __Pyx_GetItemInt(__pyx_v_gts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_4) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
       __pyx_t_4 = 0;
-      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
+      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_1 = PyList_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 563; __pyx_clineno = __LINE__; goto __pyx_L7_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_1));
       PyList_SET_ITEM(__pyx_t_1, 0, __pyx_t_9);
@@ -10821,7 +10957,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
     __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":564
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":564
  *             if gts[0] == "." and gts[1] == ".": return [gts[0],GTstring[len(gts[0]):-len(gts[1])],gts[1]]
  *             return [int(gts[0]),GTstring[len(gts[0]):-len(gts[1])],int(gts[1])]
  *         except ValueError:             # <<<<<<<<<<<<<<
@@ -10836,7 +10972,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_GOTREF(__pyx_t_3);
 
-      /* "cvcf.pyx":565
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":565
  *             return [int(gts[0]),GTstring[len(gts[0]):-len(gts[1])],int(gts[1])]
  *         except ValueError:
  *             self.error(self._line,self.BAD_GENOTYPE,GTstring)             # <<<<<<<<<<<<<<
@@ -10850,7 +10986,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__BAD_GENOTYPE); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 565; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __pyx_t_13 = PyTuple_New(3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 565; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_13));
+      __Pyx_GOTREF(__pyx_t_13);
       PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_t_11);
       __Pyx_GIVEREF(__pyx_t_11);
       PyTuple_SET_ITEM(__pyx_t_13, 1, __pyx_t_12);
@@ -10860,13 +10996,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __Pyx_GIVEREF(__pyx_v_GTstring);
       __pyx_t_11 = 0;
       __pyx_t_12 = 0;
-      __pyx_t_12 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 565; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
+      __pyx_t_12 = PyObject_Call(__pyx_t_9, __pyx_t_13, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 565; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
+      __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-      /* "cvcf.pyx":566
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":566
  *         except ValueError:
  *             self.error(self._line,self.BAD_GENOTYPE,GTstring)
  *             return [".","|","."]             # <<<<<<<<<<<<<<
@@ -10876,15 +11012,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
       __Pyx_XDECREF(__pyx_r);
       __pyx_t_12 = PyList_New(3); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 566; __pyx_clineno = __LINE__; goto __pyx_L9_except_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-      PyList_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_kp_s_9));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_92));
-      PyList_SET_ITEM(__pyx_t_12, 1, ((PyObject *)__pyx_kp_s_92));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_92));
-      __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-      PyList_SET_ITEM(__pyx_t_12, 2, ((PyObject *)__pyx_kp_s_9));
-      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+      PyList_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_kp_s_6));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_57));
+      PyList_SET_ITEM(__pyx_t_12, 1, ((PyObject *)__pyx_kp_s_57));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_57));
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
+      PyList_SET_ITEM(__pyx_t_12, 2, ((PyObject *)__pyx_kp_s_6));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
       __pyx_r = ((PyObject *)__pyx_t_12);
       __pyx_t_12 = 0;
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -10935,7 +11071,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":569
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":569
  * 
  * 
  *     def convertGTback(self, GTdata):             # <<<<<<<<<<<<<<
@@ -10943,9 +11079,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_12convertGT(PyObject *__pyx_self, PyObject
  * 
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_13convertGTback = {__Pyx_NAMESTR("convertGTback"), (PyCFunction)__pyx_pf_4cvcf_3VCF_13convertGTback, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_convertGTback(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_convertGTback = {__Pyx_NAMESTR("convertGTback"), (PyCFunction)__pyx_pf_4cvcf_3VCF_convertGTback, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_convertGTback(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_GTdata = 0;
   PyObject *__pyx_r = NULL;
@@ -10996,7 +11132,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObj
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":570
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":570
  * 
  *     def convertGTback(self, GTdata):
  *         return ''.join(map(str,GTdata))             # <<<<<<<<<<<<<<
@@ -11007,25 +11143,25 @@ static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObj
   __pyx_t_1 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_1), __pyx_n_s__join); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  __Pyx_INCREF(((PyObject *)((PyObject*)(&PyString_Type))));
-  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)(&PyString_Type))));
-  __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyString_Type))));
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)((PyObject*)&PyString_Type)));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)((PyObject*)&PyString_Type)));
+  __Pyx_GIVEREF(((PyObject *)((PyObject*)&PyString_Type)));
   __Pyx_INCREF(__pyx_v_GTdata);
   PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_GTdata);
   __Pyx_GIVEREF(__pyx_v_GTdata);
-  __pyx_t_3 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_builtin_map, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_3);
   __Pyx_GIVEREF(__pyx_t_3);
   __pyx_t_3 = 0;
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 570; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_r = __pyx_t_3;
   __pyx_t_3 = 0;
   goto __pyx_L0;
@@ -11044,7 +11180,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObj
   return __pyx_r;
 }
 
-/* "cvcf.pyx":572
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":572
  *         return ''.join(map(str,GTdata))
  * 
  *     def parse_formatdata( self, key, value, formatdict, line ):             # <<<<<<<<<<<<<<
@@ -11052,9 +11188,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_13convertGTback(PyObject *__pyx_self, PyObj
  *         f = formatdict.get(key,None)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_14parse_formatdata = {__Pyx_NAMESTR("parse_formatdata"), (PyCFunction)__pyx_pf_4cvcf_3VCF_14parse_formatdata, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse_formatdata = {__Pyx_NAMESTR("parse_formatdata"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse_formatdata, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_formatdata(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_key = 0;
   PyObject *__pyx_v_value = 0;
@@ -11154,7 +11290,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
   __pyx_v_idx = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_v = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":574
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":574
  *     def parse_formatdata( self, key, value, formatdict, line ):
  *         # To do: check that the right number of values is present
  *         f = formatdict.get(key,None)             # <<<<<<<<<<<<<<
@@ -11164,22 +11300,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_formatdict, __pyx_n_s__get); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_key);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_key);
   __Pyx_GIVEREF(__pyx_v_key);
   __Pyx_INCREF(Py_None);
   PyTuple_SET_ITEM(__pyx_t_2, 1, Py_None);
   __Pyx_GIVEREF(Py_None);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 574; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_v_f);
   __pyx_v_f = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":575
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":575
  *         # To do: check that the right number of values is present
  *         f = formatdict.get(key,None)
  *         if f == None:             # <<<<<<<<<<<<<<
@@ -11192,7 +11328,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":576
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":576
  *         f = formatdict.get(key,None)
  *         if f == None:
  *             self._add_definition(formatdict, key, value, line )             # <<<<<<<<<<<<<<
@@ -11202,7 +11338,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
     __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___add_definition); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 576; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 576; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_INCREF(__pyx_v_formatdict);
     PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_formatdict);
     __Pyx_GIVEREF(__pyx_v_formatdict);
@@ -11215,13 +11351,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
     __Pyx_INCREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
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+    __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 576; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":577
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":577
  *         if f == None:
  *             self._add_definition(formatdict, key, value, line )
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@@ -11237,7 +11373,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
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-  /* "cvcf.pyx":578
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":578
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-    /* "cvcf.pyx":579
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":579
  *             f = formatdict[key]
  *         if f.type == "Flag":
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       __Pyx_GIVEREF(__pyx_t_1);
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-      __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 579; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 579; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-    /* "cvcf.pyx":580
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":580
  *         if f.type == "Flag":
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-  /* "cvcf.pyx":581
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":581
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   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_94), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 581; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 581; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_2));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 581; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __Pyx_DECREF(__pyx_v_values);
-  __pyx_v_values = __pyx_t_3;
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+  __pyx_v_values = __pyx_t_2;
+  __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":583
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":583
  *         values = value.split(',')
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  *             self.error(line,self.ERROR_TRAILING_DATA,values[-1])
  *             values[-1] = values[-1].split(';')[0]
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-  __pyx_t_3 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__type); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__type); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
-  __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-    __pyx_t_1 = PyObject_RichCompare(__pyx_t_3, ((PyObject *)__pyx_n_s__Integer), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__Integer), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely((__pyx_t_4 == (int)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_t_6 = __pyx_t_4;
     __pyx_t_4 = __pyx_t_6;
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     __pyx_t_4 = __pyx_t_5;
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-  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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   if (__pyx_t_5) {
     __pyx_t_7 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_4 = (__pyx_t_7 > 0);
     if (__pyx_t_4) {
-      __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_values, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__find); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_values, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__find); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+      __Pyx_GOTREF(__pyx_t_2);
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+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_7));
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       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_int_neg_1, Py_GT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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@@ -11369,77 +11517,83 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
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   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":584
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":584
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+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 584; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
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     __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_GOTREF(__pyx_t_9);
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-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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+            __Pyx_GOTREF(__pyx_t_1);
+            __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+            if (PyObject_SetItem(__pyx_v_values, __pyx_v_idx, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 590; __pyx_clineno = __LINE__; goto __pyx_L13_error;}
+            __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
           }
           __pyx_L21:;
         }
@@ -11541,10 +11695,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
         __Pyx_XDECREF(__pyx_save_exc_tb); __pyx_save_exc_tb = 0;
         goto __pyx_L20_try_end;
         __pyx_L13_error:;
+        __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-        /* "cvcf.pyx":591
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":591
  *                     if v == ".": values[idx] = f.missingvalue
  *                     else:        values[idx] = int(v)
  *                 except:             # <<<<<<<<<<<<<<
@@ -11553,12 +11707,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  */
         /*except:*/ {
           __Pyx_AddTraceback("cvcf.VCF.parse_formatdata");
-          if (__Pyx_GetException(&__pyx_t_3, &__pyx_t_1, &__pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 591; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
-          __Pyx_GOTREF(__pyx_t_3);
+          if (__Pyx_GetException(&__pyx_t_1, &__pyx_t_9, &__pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 591; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
           __Pyx_GOTREF(__pyx_t_1);
+          __Pyx_GOTREF(__pyx_t_9);
           __Pyx_GOTREF(__pyx_t_10);
 
-          /* "cvcf.pyx":592
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":592
  *                     else:        values[idx] = int(v)
  *                 except:
  *                     self.error(line,self.ERROR_FORMAT_NOT_NUMERICAL,values)             # <<<<<<<<<<<<<<
@@ -11567,10 +11721,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  */
           __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
           __Pyx_GOTREF(__pyx_t_11);
-          __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_97); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
+          __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_59); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __pyx_t_13 = PyTuple_New(3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
-          __Pyx_GOTREF(((PyObject *)__pyx_t_13));
+          __Pyx_GOTREF(__pyx_t_13);
           __Pyx_INCREF(__pyx_v_line);
           PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_v_line);
           __Pyx_GIVEREF(__pyx_v_line);
@@ -11580,13 +11734,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
           PyTuple_SET_ITEM(__pyx_t_13, 2, __pyx_v_values);
           __Pyx_GIVEREF(__pyx_v_values);
           __pyx_t_12 = 0;
-          __pyx_t_12 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
+          __pyx_t_12 = PyObject_Call(__pyx_t_11, __pyx_t_13, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 592; __pyx_clineno = __LINE__; goto __pyx_L15_except_error;}
           __Pyx_GOTREF(__pyx_t_12);
           __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-          __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
+          __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
           __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-          /* "cvcf.pyx":593
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":593
  *                 except:
  *                     self.error(line,self.ERROR_FORMAT_NOT_NUMERICAL,values)
  *                     return [0] * len(values)             # <<<<<<<<<<<<<<
@@ -11614,8 +11768,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           goto __pyx_L16_except_return;
-          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
           goto __pyx_L14_exception_handled;
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@@ -11639,10 +11793,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
         __pyx_L20_try_end:;
       }
     }
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":594
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":594
  *                     self.error(line,self.ERROR_FORMAT_NOT_NUMERICAL,values)
  *                     return [0] * len(values)
  *             return values             # <<<<<<<<<<<<<<
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     goto __pyx_L10;
   }
 
-  /* "cvcf.pyx":595
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":595
  *                     return [0] * len(values)
  *             return values
  *         elif f.type == "String":             # <<<<<<<<<<<<<<
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   __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__String), Py_EQ); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__String), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 595; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":596
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":596
  *             return values
  *         elif f.type == "String":
  *             self._line = line             # <<<<<<<<<<<<<<
@@ -11681,34 +11835,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
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     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___line, __pyx_v_line) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 596; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-    /* "cvcf.pyx":597
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":597
  *         elif f.type == "String":
  *             self._line = line
  *             if f.id == "GT": values = map( self.convertGT, values )             # <<<<<<<<<<<<<<
  *             return values
  *         elif f.type == "Character":
  */
-    __pyx_t_9 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__id); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_9);
-    __pyx_t_2 = PyObject_RichCompare(__pyx_t_9, ((PyObject *)__pyx_n_s__GT), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__id); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, ((PyObject *)__pyx_n_s__GT), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_4) {
       __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__convertGT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-      PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_2);
+      __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_values);
-      PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_v_values);
+      PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_values);
       __Pyx_GIVEREF(__pyx_v_values);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_builtin_map, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 597; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __Pyx_DECREF(__pyx_v_values);
       __pyx_v_values = __pyx_t_2;
       __pyx_t_2 = 0;
@@ -11716,7 +11870,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
     }
     __pyx_L24:;
 
-    /* "cvcf.pyx":598
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":598
  *             self._line = line
  *             if f.id == "GT": values = map( self.convertGT, values )
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@@ -11730,7 +11884,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
     goto __pyx_L10;
   }
 
-  /* "cvcf.pyx":599
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":599
  *             if f.id == "GT": values = map( self.convertGT, values )
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  *         elif f.type == "Character":             # <<<<<<<<<<<<<<
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-  __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__Character), Py_EQ); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_9);
+  __pyx_t_3 = PyObject_RichCompare(__pyx_t_2, ((PyObject *)__pyx_n_s__Character), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 599; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":600
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":600
  *             return values
  *         elif f.type == "Character":
  *             for v in values:             # <<<<<<<<<<<<<<
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     if (PyList_CheckExact(__pyx_v_values) || PyTuple_CheckExact(__pyx_v_values)) {
-      __pyx_t_7 = 0; __pyx_t_9 = __pyx_v_values; __Pyx_INCREF(__pyx_t_9);
+      __pyx_t_7 = 0; __pyx_t_3 = __pyx_v_values; __Pyx_INCREF(__pyx_t_3);
     } else {
-      __pyx_t_7 = -1; __pyx_t_9 = PyObject_GetIter(__pyx_v_values); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 600; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_7 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_values); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 600; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
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     for (;;) {
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+      if (likely(PyList_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_2 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_2); __pyx_t_7++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_2); __pyx_t_7++;
       } else {
-        __pyx_t_2 = PyIter_Next(__pyx_t_9);
+        __pyx_t_2 = PyIter_Next(__pyx_t_3);
         if (!__pyx_t_2) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 600; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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@@ -11778,7 +11932,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
       __pyx_v_v = __pyx_t_2;
       __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":601
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":601
  *         elif f.type == "Character":
  *             for v in values:
  *                 if len(v) != 1: self.error(line,self.ERROR_FORMAT_NOT_CHAR)             # <<<<<<<<<<<<<<
@@ -11790,28 +11944,28 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
       if (__pyx_t_4) {
         __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_98); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_60); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
         __Pyx_INCREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_line);
+        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_10);
+        PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_10);
         __Pyx_GIVEREF(__pyx_t_10);
         __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_2, __pyx_t_9, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 601; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         goto __pyx_L27;
       }
       __pyx_L27:;
     }
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":602
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":602
  *             for v in values:
  *                 if len(v) != 1: self.error(line,self.ERROR_FORMAT_NOT_CHAR)
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     goto __pyx_L10;
   }
 
-  /* "cvcf.pyx":603
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":603
  *                 if len(v) != 1: self.error(line,self.ERROR_FORMAT_NOT_CHAR)
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-  __pyx_t_9 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__type); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 603; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_9);
-  __pyx_t_10 = PyObject_RichCompare(__pyx_t_9, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 603; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__type); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 603; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_10 = PyObject_RichCompare(__pyx_t_3, ((PyObject *)__pyx_n_s__Float), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 603; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 603; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":604
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":604
  *             return values
  *         elif f.type == "Float":
  *             for idx,v in enumerate(values):             # <<<<<<<<<<<<<<
@@ -11851,62 +12005,62 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
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     __pyx_t_10 = __pyx_int_0;
     if (PyList_CheckExact(__pyx_v_values) || PyTuple_CheckExact(__pyx_v_values)) {
-      __pyx_t_7 = 0; __pyx_t_9 = __pyx_v_values; __Pyx_INCREF(__pyx_t_9);
+      __pyx_t_7 = 0; __pyx_t_3 = __pyx_v_values; __Pyx_INCREF(__pyx_t_3);
     } else {
-      __pyx_t_7 = -1; __pyx_t_9 = PyObject_GetIter(__pyx_v_values); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 604; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_7 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_values); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 604; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
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     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_9))) {
-        if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_9)) break;
-        __pyx_t_1 = PyList_GET_ITEM(__pyx_t_9, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++;
-      } else if (likely(PyTuple_CheckExact(__pyx_t_9))) {
-        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_9)) break;
-        __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_9, __pyx_t_7); __Pyx_INCREF(__pyx_t_1); __pyx_t_7++;
+      if (likely(PyList_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_7 >= PyList_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_9 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_7 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_7); __Pyx_INCREF(__pyx_t_9); __pyx_t_7++;
       } else {
-        __pyx_t_1 = PyIter_Next(__pyx_t_9);
-        if (!__pyx_t_1) {
+        __pyx_t_9 = PyIter_Next(__pyx_t_3);
+        if (!__pyx_t_9) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 604; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
         }
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_GOTREF(__pyx_t_9);
       }
       __Pyx_DECREF(__pyx_v_v);
-      __pyx_v_v = __pyx_t_1;
-      __pyx_t_1 = 0;
+      __pyx_v_v = __pyx_t_9;
+      __pyx_t_9 = 0;
       __Pyx_INCREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_v_idx);
       __pyx_v_idx = __pyx_t_10;
-      __pyx_t_1 = PyNumber_Add(__pyx_t_10, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 604; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_9 = PyNumber_Add(__pyx_t_10, __pyx_int_1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 604; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_10);
-      __pyx_t_10 = __pyx_t_1;
-      __pyx_t_1 = 0;
+      __pyx_t_10 = __pyx_t_9;
+      __pyx_t_9 = 0;
 
-      /* "cvcf.pyx":605
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":605
  *         elif f.type == "Float":
  *             for idx,v in enumerate(values):
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  *             except:
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-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_v, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __pyx_t_9 = PyObject_RichCompare(__pyx_v_v, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_4 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       if (__pyx_t_4) {
-        __pyx_t_1 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__missingvalue); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        if (PyObject_SetItem(__pyx_v_values, __pyx_v_idx, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_f, __pyx_n_s__missingvalue); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        if (PyObject_SetItem(__pyx_v_values, __pyx_v_idx, __pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 605; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L30;
       }
       __pyx_L30:;
     }
-    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-    /* "cvcf.pyx":606
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":606
  *             for idx,v in enumerate(values):
  *                 if v == ".": values[idx] = f.missingvalue
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         __Pyx_XDECREF(__pyx_r);
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-        __Pyx_INCREF(((PyObject *)((PyObject*)(&PyFloat_Type))));
-        PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)((PyObject*)(&PyFloat_Type))));
-        __Pyx_GIVEREF(((PyObject *)((PyObject*)(&PyFloat_Type))));
+        __Pyx_GOTREF(__pyx_t_10);
+        __Pyx_INCREF(((PyObject *)((PyObject*)&PyFloat_Type)));
+        PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)((PyObject*)&PyFloat_Type)));
+        __Pyx_GIVEREF(((PyObject *)((PyObject*)&PyFloat_Type)));
         __Pyx_INCREF(__pyx_v_values);
         PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_v_values);
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-        __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-        __pyx_r = __pyx_t_9;
-        __pyx_t_9 = 0;
+        __pyx_t_3 = PyObject_Call(__pyx_builtin_map, __pyx_t_10, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 606; __pyx_clineno = __LINE__; goto __pyx_L31_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+        __pyx_r = __pyx_t_3;
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         goto __pyx_L35_try_return;
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       __Pyx_XDECREF(__pyx_save_exc_type); __pyx_save_exc_type = 0;
@@ -11950,13 +12104,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
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       __Pyx_XDECREF(__pyx_t_13); __pyx_t_13 = 0;
       __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
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       __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
+      __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
+      __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-      /* "cvcf.pyx":607
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":607
  *                 if v == ".": values[idx] = f.missingvalue
  *             try: return map(float,values)
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@@ -11965,12 +12119,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  */
       /*except:*/ {
         __Pyx_AddTraceback("cvcf.VCF.parse_formatdata");
-        if (__Pyx_GetException(&__pyx_t_9, &__pyx_t_10, &__pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 607; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(__pyx_t_9);
+        if (__Pyx_GetException(&__pyx_t_3, &__pyx_t_10, &__pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 607; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_GOTREF(__pyx_t_9);
 
-        /* "cvcf.pyx":608
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":608
  *             try: return map(float,values)
  *             except:
  *                 self.error(line,self.ERROR_FORMAT_NOT_NUMERICAL,values)             # <<<<<<<<<<<<<<
@@ -11979,26 +12133,26 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  */
         __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_97); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_59); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __Pyx_GOTREF(__pyx_t_1);
         __pyx_t_11 = PyTuple_New(3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_11));
+        __Pyx_GOTREF(__pyx_t_11);
         __Pyx_INCREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_3);
-        __Pyx_GIVEREF(__pyx_t_3);
+        PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_1);
+        __Pyx_GIVEREF(__pyx_t_1);
         __Pyx_INCREF(__pyx_v_values);
         PyTuple_SET_ITEM(__pyx_t_11, 2, __pyx_v_values);
         __Pyx_GIVEREF(__pyx_v_values);
-        __pyx_t_3 = 0;
-        __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_1 = 0;
+        __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_11, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 608; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __Pyx_GOTREF(__pyx_t_1);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-        /* "cvcf.pyx":609
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":609
  *             except:
  *                 self.error(line,self.ERROR_FORMAT_NOT_NUMERICAL,values)
  *                 return [0.0] * len(values)             # <<<<<<<<<<<<<<
@@ -12006,29 +12160,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  *             # can't happen
  */
         __Pyx_XDECREF(__pyx_r);
-        __pyx_t_3 = PyFloat_FromDouble(0.0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_1 = PyFloat_FromDouble(0.0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __Pyx_GOTREF(__pyx_t_1);
         __pyx_t_11 = PyList_New(1); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
         __Pyx_GOTREF(((PyObject *)__pyx_t_11));
-        PyList_SET_ITEM(__pyx_t_11, 0, __pyx_t_3);
-        __Pyx_GIVEREF(__pyx_t_3);
-        __pyx_t_3 = 0;
+        PyList_SET_ITEM(__pyx_t_11, 0, __pyx_t_1);
+        __Pyx_GIVEREF(__pyx_t_1);
+        __pyx_t_1 = 0;
         __pyx_t_7 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_7 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
-        __Pyx_GOTREF(__pyx_t_3);
-        __pyx_t_2 = PyNumber_Multiply(((PyObject *)__pyx_t_11), __pyx_t_3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_7); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyNumber_Multiply(((PyObject *)__pyx_t_11), __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 609; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
         __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
-        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __pyx_r = __pyx_t_2;
         __pyx_t_2 = 0;
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         goto __pyx_L34_except_return;
-        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         goto __pyx_L32_exception_handled;
       }
       __pyx_L33_except_error:;
@@ -12054,29 +12208,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
   }
   /*else*/ {
 
-    /* "cvcf.pyx":612
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":612
  *         else:
  *             # can't happen
  *             self.error(line,self.ERROR_INFO_STRING)             # <<<<<<<<<<<<<<
  * 
  * 
  */
-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
     __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ERROR_INFO_STRING); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+    __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
+    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_10);
+    PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_10);
     __Pyx_GIVEREF(__pyx_t_10);
     __pyx_t_10 = 0;
-    __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyObject_Call(__pyx_t_9, __pyx_t_3, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 612; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   }
   __pyx_L10:;
@@ -12104,7 +12258,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
   return __pyx_r;
 }
 
-/* "cvcf.pyx":615
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":615
  * 
  * 
  *     def inregion(self, chrom, pos):             # <<<<<<<<<<<<<<
@@ -12112,9 +12266,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_14parse_formatdata(PyObject *__pyx_self, Py
  *         for r in self._regions:
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_15inregion = {__Pyx_NAMESTR("inregion"), (PyCFunction)__pyx_pf_4cvcf_3VCF_15inregion, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_inregion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_inregion = {__Pyx_NAMESTR("inregion"), (PyCFunction)__pyx_pf_4cvcf_3VCF_inregion, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_inregion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_chrom = 0;
   PyObject *__pyx_v_pos = 0;
@@ -12182,7 +12336,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_r = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":616
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":616
  * 
  *     def inregion(self, chrom, pos):
  *         if not self._regions: return True             # <<<<<<<<<<<<<<
@@ -12205,7 +12359,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":617
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":617
  *     def inregion(self, chrom, pos):
  *         if not self._regions: return True
  *         for r in self._regions:             # <<<<<<<<<<<<<<
@@ -12240,7 +12394,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
     __pyx_v_r = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":618
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":618
  *         if not self._regions: return True
  *         for r in self._regions:
  *             if r[0] == chrom and r[1] <= pos < r[2]: return True             # <<<<<<<<<<<<<<
@@ -12288,7 +12442,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
   }
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "cvcf.pyx":619
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":619
  *         for r in self._regions:
  *             if r[0] == chrom and r[1] <= pos < r[2]: return True
  *         return False             # <<<<<<<<<<<<<<
@@ -12318,7 +12472,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
   return __pyx_r;
 }
 
-/* "cvcf.pyx":622
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":622
  * 
  * 
  *     def parse_data( self, line, lineparse=False ):             # <<<<<<<<<<<<<<
@@ -12326,9 +12480,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_15inregion(PyObject *__pyx_self, PyObject *
  *         if len(cols) != len(self._samples)+9:
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_16parse_data = {__Pyx_NAMESTR("parse_data"), (PyCFunction)__pyx_pf_4cvcf_3VCF_16parse_data, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_data(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse_data = {__Pyx_NAMESTR("parse_data"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse_data, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse_data(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_line = 0;
   PyObject *__pyx_v_lineparse = 0;
@@ -12372,15 +12526,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   PyObject *__pyx_v_value;
   PyObject *__pyx_v_d;
   PyObject *__pyx_v_key;
+  PyObject *__pyx_8genexpr0__pyx_v_allele;
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
-  Py_ssize_t __pyx_t_3;
+  PyObject *__pyx_t_3 = NULL;
   Py_ssize_t __pyx_t_4;
-  int __pyx_t_5;
+  Py_ssize_t __pyx_t_5;
   int __pyx_t_6;
   int __pyx_t_7;
-  PyObject *__pyx_t_8 = NULL;
+  int __pyx_t_8;
   PyObject *__pyx_t_9 = NULL;
   PyObject *__pyx_t_10 = NULL;
   PyObject *__pyx_t_11 = NULL;
@@ -12400,7 +12555,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   if (unlikely(__pyx_kwds)) {
     Py_ssize_t kw_args = PyDict_Size(__pyx_kwds);
     PyObject* values[3] = {0,0,0};
-    values[2] = __pyx_k_99;
+    values[2] = __pyx_k_61;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  3: values[2] = PyTuple_GET_ITEM(__pyx_args, 2);
       case  2: values[1] = PyTuple_GET_ITEM(__pyx_args, 1);
@@ -12432,7 +12587,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __pyx_v_line = values[1];
     __pyx_v_lineparse = values[2];
   } else {
-    __pyx_v_lineparse = __pyx_k_99;
+    __pyx_v_lineparse = __pyx_k_61;
     switch (PyTuple_GET_SIZE(__pyx_args)) {
       case  3:
       __pyx_v_lineparse = PyTuple_GET_ITEM(__pyx_args, 2);
@@ -12462,13 +12617,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   __pyx_v_faref = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_alt = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_filter = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_info = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_info = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_blurp = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_elts = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_v = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_format = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_f = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_newalts = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_newalts = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_a = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_l = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_addns = Py_None; __Pyx_INCREF(Py_None);
@@ -12479,16 +12634,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   __pyx_v_allele = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_longest = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_shortest = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_samples = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_samples = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_sample = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_dict = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_dict = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_values = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_expected = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_value = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_d = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_d = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_key = Py_None; __Pyx_INCREF(Py_None);
+  __pyx_8genexpr0__pyx_v_allele = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":623
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":623
  * 
  *     def parse_data( self, line, lineparse=False ):
  *         cols = line.split('\t')             # <<<<<<<<<<<<<<
@@ -12497,139 +12653,145 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__split); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_100), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_51));
+  PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_kp_s_51));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_51));
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_v_cols);
-  __pyx_v_cols = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_v_cols = __pyx_t_3;
+  __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":624
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":624
  *     def parse_data( self, line, lineparse=False ):
  *         cols = line.split('\t')
  *         if len(cols) != len(self._samples)+9:             # <<<<<<<<<<<<<<
  *             # gracefully deal with absent FORMAT column
  *             if len(cols) == 8 and len(self._samples)==0:
  */
-  __pyx_t_3 = PyObject_Length(__pyx_v_cols); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_4 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_5 = (__pyx_t_3 != (__pyx_t_4 + 9));
-  if (__pyx_t_5) {
+  __pyx_t_4 = PyObject_Length(__pyx_v_cols); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 624; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_6 = (__pyx_t_4 != (__pyx_t_5 + 9));
+  if (__pyx_t_6) {
 
-    /* "cvcf.pyx":626
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":626
  *         if len(cols) != len(self._samples)+9:
  *             # gracefully deal with absent FORMAT column
  *             if len(cols) == 8 and len(self._samples)==0:             # <<<<<<<<<<<<<<
  *                 cols.append("")
  *             else:
  */
-    __pyx_t_4 = PyObject_Length(__pyx_v_cols); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_5 = (__pyx_t_4 == 8);
-    if (__pyx_t_5) {
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyObject_Length(__pyx_t_2); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_6 = (__pyx_t_4 == 0);
-      __pyx_t_7 = __pyx_t_6;
+    __pyx_t_5 = PyObject_Length(__pyx_v_cols); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = (__pyx_t_5 == 8);
+    if (__pyx_t_6) {
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_5 = PyObject_Length(__pyx_t_3); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 626; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_7 = (__pyx_t_5 == 0);
+      __pyx_t_8 = __pyx_t_7;
     } else {
-      __pyx_t_7 = __pyx_t_5;
+      __pyx_t_8 = __pyx_t_6;
     }
-    if (__pyx_t_7) {
+    if (__pyx_t_8) {
 
-      /* "cvcf.pyx":627
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":627
  *             # gracefully deal with absent FORMAT column
  *             if len(cols) == 8 and len(self._samples)==0:
  *                 cols.append("")             # <<<<<<<<<<<<<<
  *             else:
  *                 self.error(line,
  */
-      __pyx_t_2 = __Pyx_PyObject_Append(__pyx_v_cols, ((PyObject *)__pyx_kp_s_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 627; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_3 = __Pyx_PyObject_Append(__pyx_v_cols, ((PyObject *)__pyx_kp_s_1)); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 627; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       goto __pyx_L7;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":629
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":629
  *                 cols.append("")
  *             else:
  *                 self.error(line,             # <<<<<<<<<<<<<<
  *                            self.BAD_NUMBER_OF_COLUMNS,
  *                            "expected %s for %s samples (%s), got %s" % (len(self._samples)+9, len(self._samples), self._samples, len(cols)))
  */
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 629; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 629; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
 
-      /* "cvcf.pyx":630
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":630
  *             else:
  *                 self.error(line,
  *                            self.BAD_NUMBER_OF_COLUMNS,             # <<<<<<<<<<<<<<
  *                            "expected %s for %s samples (%s), got %s" % (len(self._samples)+9, len(self._samples), self._samples, len(cols)))
  * 
  */
-      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_101); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_62); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 630; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
 
-      /* "cvcf.pyx":631
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":631
  *                 self.error(line,
  *                            self.BAD_NUMBER_OF_COLUMNS,
  *                            "expected %s for %s samples (%s), got %s" % (len(self._samples)+9, len(self._samples), self._samples, len(cols)))             # <<<<<<<<<<<<<<
  * 
  *         chrom = cols[0]
  */
-      __pyx_t_8 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_8);
-      __pyx_t_4 = PyObject_Length(__pyx_t_8); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-      __pyx_t_8 = PyInt_FromSsize_t((__pyx_t_4 + 9)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_8);
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_5 = PyObject_Length(__pyx_t_1); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __pyx_t_1 = PyInt_FromSsize_t((__pyx_t_5 + 9)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
-      __pyx_t_4 = PyObject_Length(__pyx_t_9); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Length(__pyx_t_9); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __pyx_t_9 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
       __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___samples); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
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-      __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Length(__pyx_v_cols); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __pyx_t_12 = PyTuple_New(4); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 631; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
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-      __Pyx_GIVEREF(__pyx_t_8);
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       __Pyx_GIVEREF(__pyx_t_11);
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-      __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+      __Pyx_GOTREF(__pyx_t_12);
       __Pyx_INCREF(__pyx_v_line);
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       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_1);
-      __Pyx_GIVEREF(__pyx_t_1);
+      PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_2);
+      __Pyx_GIVEREF(__pyx_t_2);
       PyTuple_SET_ITEM(__pyx_t_12, 2, ((PyObject *)__pyx_t_11));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_11));
-      __pyx_t_1 = 0;
+      __pyx_t_2 = 0;
       __pyx_t_11 = 0;
-      __pyx_t_11 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 629; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_Call(__pyx_t_3, __pyx_t_12, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 629; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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@@ -12637,7 +12799,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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-  /* "cvcf.pyx":633
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":633
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-  /* "cvcf.pyx":636
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":636
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
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       PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_t_11);
       __Pyx_GIVEREF(__pyx_t_11);
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+      __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_12, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 636; __pyx_clineno = __LINE__; goto __pyx_L8_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
       __pyx_t_12 = PyNumber_Subtract(__pyx_t_11, __pyx_int_1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 636; __pyx_clineno = __LINE__; goto __pyx_L8_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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     __pyx_L8_error:;
-    __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
+    __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
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     __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
     __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-    /* "cvcf.pyx":637
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":637
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       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_GOTREF(__pyx_t_11);
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_v_line);
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       __Pyx_GIVEREF(__pyx_t_10);
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-      __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 637; __pyx_clineno = __LINE__; goto __pyx_L10_except_error;}
+      __pyx_t_10 = PyObject_Call(__pyx_t_2, __pyx_t_9, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 637; __pyx_clineno = __LINE__; goto __pyx_L10_except_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 638; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+    __Pyx_GOTREF(__pyx_t_3);
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_12));
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     PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_v_line);
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     PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_11);
     __Pyx_GIVEREF(__pyx_t_11);
     __pyx_t_11 = 0;
-    __pyx_t_11 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 638; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_Call(__pyx_t_3, __pyx_t_12, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 638; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
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-  /* "cvcf.pyx":641
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":641
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-  __Pyx_GOTREF(__pyx_t_2);
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+  __Pyx_GOTREF(__pyx_t_3);
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+  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+  __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 641; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_6 = (!__pyx_t_8);
+  if (__pyx_t_6) {
     __Pyx_XDECREF(__pyx_r);
     __Pyx_INCREF(Py_None);
     __pyx_r = Py_None;
@@ -12809,105 +12971,105 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   }
   __pyx_L19:;
 
-  /* "cvcf.pyx":644
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":644
  * 
  *         # end of first-pass parse for sortedVCF
  *         if lineparse: return chrom, pos, line             # <<<<<<<<<<<<<<
  * 
  *         id = cols[2]
  */
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_v_lineparse); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (__pyx_t_5) {
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_v_lineparse); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_t_6) {
     __Pyx_XDECREF(__pyx_r);
-    __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __pyx_t_3 = PyTuple_New(3); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 644; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_chrom);
-    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_chrom);
+    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_chrom);
     __Pyx_GIVEREF(__pyx_v_chrom);
     __Pyx_INCREF(__pyx_v_pos);
-    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_pos);
+    PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_pos);
     __Pyx_GIVEREF(__pyx_v_pos);
     __Pyx_INCREF(__pyx_v_line);
-    PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_line);
+    PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
-    __pyx_r = ((PyObject *)__pyx_t_2);
-    __pyx_t_2 = 0;
+    __pyx_r = __pyx_t_3;
+    __pyx_t_3 = 0;
     goto __pyx_L0;
     goto __pyx_L20;
   }
   __pyx_L20:;
 
-  /* "cvcf.pyx":646
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":646
  *         if lineparse: return chrom, pos, line
  * 
  *         id = cols[2]             # <<<<<<<<<<<<<<
  * 
  *         ref = cols[3].upper()
  */
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_cols, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 646; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_cols, 2, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 646; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_v_id);
-  __pyx_v_id = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_v_id = __pyx_t_3;
+  __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":648
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":648
  *         id = cols[2]
  * 
  *         ref = cols[3].upper()             # <<<<<<<<<<<<<<
  *         if ref == ".":
  *             self.error(line,self.MISSING_REF)
  */
-  __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_cols, 3, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_12 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__upper); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_cols, 3, sizeof(long), PyInt_FromLong); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_12 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__upper); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_12);
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 648; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
   __Pyx_DECREF(__pyx_v_ref);
-  __pyx_v_ref = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_v_ref = __pyx_t_3;
+  __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":649
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":649
  * 
  *         ref = cols[3].upper()
  *         if ref == ".":             # <<<<<<<<<<<<<<
  *             self.error(line,self.MISSING_REF)
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
  */
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_ref, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (__pyx_t_5) {
+  __pyx_t_3 = PyObject_RichCompare(__pyx_v_ref, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 649; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (__pyx_t_6) {
 
-    /* "cvcf.pyx":650
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":650
  *         ref = cols[3].upper()
  *         if ref == ".":
  *             self.error(line,self.MISSING_REF)             # <<<<<<<<<<<<<<
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
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  */
-    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__MISSING_REF); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
     __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_11));
+    __Pyx_GOTREF(__pyx_t_11);
     __Pyx_INCREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_v_line);
     __Pyx_GIVEREF(__pyx_v_line);
     PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_12);
     __Pyx_GIVEREF(__pyx_t_12);
     __pyx_t_12 = 0;
-    __pyx_t_12 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_11), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyObject_Call(__pyx_t_3, __pyx_t_11, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 650; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-    /* "cvcf.pyx":651
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":651
  *         if ref == ".":
  *             self.error(line,self.MISSING_REF)
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)             # <<<<<<<<<<<<<<
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     __Pyx_GOTREF(__pyx_t_11);
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-    if (__pyx_t_5) {
+    if (__pyx_t_6) {
       __pyx_t_11 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __pyx_t_12 = PyNumber_Add(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_10 = PyTuple_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_chrom);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_chrom);
       __Pyx_GIVEREF(__pyx_v_chrom);
@@ -12938,22 +13100,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __Pyx_GIVEREF(__pyx_v_pos);
       PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_t_12);
       __Pyx_GIVEREF(__pyx_t_12);
-      PyTuple_SET_ITEM(__pyx_t_10, 3, __pyx_t_2);
-      __Pyx_GIVEREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_10, 3, __pyx_t_3);
+      __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_12 = 0;
-      __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_3 = 0;
+      __pyx_t_3 = PyObject_Call(__pyx_t_11, __pyx_t_10, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 651; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_v_ref);
-      __pyx_v_ref = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_ref = __pyx_t_3;
+      __pyx_t_3 = 0;
       goto __pyx_L22;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":652
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":652
  *             self.error(line,self.MISSING_REF)
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
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   }
   /*else*/ {
 
-    /* "cvcf.pyx":654
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":654
  *             else:                   ref = ""
  *         else:
  *             for c in ref:             # <<<<<<<<<<<<<<
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     if (PyList_CheckExact(__pyx_v_ref) || PyTuple_CheckExact(__pyx_v_ref)) {
-      __pyx_t_4 = 0; __pyx_t_2 = __pyx_v_ref; __Pyx_INCREF(__pyx_t_2);
+      __pyx_t_5 = 0; __pyx_t_3 = __pyx_v_ref; __Pyx_INCREF(__pyx_t_3);
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-      __pyx_t_4 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_ref); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_5 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_ref); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
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     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_2))) {
-        if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_2)) break;
-        __pyx_t_10 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_10); __pyx_t_4++;
-      } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
-        if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
-        __pyx_t_10 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_4); __Pyx_INCREF(__pyx_t_10); __pyx_t_4++;
+      if (likely(PyList_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_10 = PyList_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_10); __pyx_t_5++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_3))) {
+        if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_3)) break;
+        __pyx_t_10 = PyTuple_GET_ITEM(__pyx_t_3, __pyx_t_5); __Pyx_INCREF(__pyx_t_10); __pyx_t_5++;
       } else {
-        __pyx_t_10 = PyIter_Next(__pyx_t_2);
+        __pyx_t_10 = PyIter_Next(__pyx_t_3);
         if (!__pyx_t_10) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 654; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
@@ -13001,51 +13163,51 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __pyx_v_c = __pyx_t_10;
       __pyx_t_10 = 0;
 
-      /* "cvcf.pyx":655
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":655
  *         else:
  *             for c in ref:
  *                 if c not in "ACGTN": self.error(line,self.UNKNOWN_CHAR_IN_REF)             # <<<<<<<<<<<<<<
  *             if "N" in ref: ref = get_sequence(chrom,pos,pos+len(ref),self._reference)
  * 
  */
-      __pyx_t_5 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_n_s__ACGTN), __pyx_v_c))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      if (__pyx_t_5) {
+      __pyx_t_6 = (__Pyx_NegateNonNeg(PySequence_Contains(((PyObject *)__pyx_n_s__ACGTN), __pyx_v_c))); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      if (__pyx_t_6) {
         __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__UNKNOWN_CHAR_IN_REF); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
         __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+        __Pyx_GOTREF(__pyx_t_12);
         __Pyx_INCREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
         PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_11);
         __Pyx_GIVEREF(__pyx_t_11);
         __pyx_t_11 = 0;
-        __pyx_t_11 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_11 = PyObject_Call(__pyx_t_10, __pyx_t_12, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 655; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
+        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
         __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
         goto __pyx_L25;
       }
       __pyx_L25:;
     }
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":656
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":656
  *             for c in ref:
  *                 if c not in "ACGTN": self.error(line,self.UNKNOWN_CHAR_IN_REF)
  *             if "N" in ref: ref = get_sequence(chrom,pos,pos+len(ref),self._reference)             # <<<<<<<<<<<<<<
  * 
  *         # make sure reference is sane
  */
-    __pyx_t_5 = ((PySequence_Contains(__pyx_v_ref, ((PyObject *)__pyx_n_s__N)))); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    if (__pyx_t_5) {
-      __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = ((PySequence_Contains(__pyx_v_ref, ((PyObject *)__pyx_n_s__N)))); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    if (__pyx_t_6) {
+      __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_5 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __pyx_t_12 = PyNumber_Add(__pyx_v_pos, __pyx_t_11); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
@@ -13053,7 +13215,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
       __pyx_t_10 = PyTuple_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_chrom);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_chrom);
       __Pyx_GIVEREF(__pyx_v_chrom);
@@ -13066,10 +13228,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __Pyx_GIVEREF(__pyx_t_11);
       __pyx_t_12 = 0;
       __pyx_t_11 = 0;
-      __pyx_t_11 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_Call(__pyx_t_3, __pyx_t_10, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 656; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_v_ref);
       __pyx_v_ref = __pyx_t_11;
       __pyx_t_11 = 0;
@@ -13079,7 +13241,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   }
   __pyx_L21:;
 
-  /* "cvcf.pyx":659
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":659
  * 
  *         # make sure reference is sane
  *         if self._reference:             # <<<<<<<<<<<<<<
@@ -13088,11 +13250,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
   __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 659; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_11);
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 659; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 659; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-  if (__pyx_t_5) {
+  if (__pyx_t_6) {
 
-    /* "cvcf.pyx":660
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":660
  *         # make sure reference is sane
  *         if self._reference:
  *             left = max(0,pos-100)             # <<<<<<<<<<<<<<
@@ -13102,14 +13264,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __pyx_t_11 = PyNumber_Subtract(__pyx_v_pos, __pyx_int_100); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
     __pyx_t_13 = 0;
-    __pyx_t_2 = PyInt_FromLong(__pyx_t_13); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_12 = PyObject_RichCompare(__pyx_t_11, __pyx_t_2, Py_GT); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyInt_FromLong(__pyx_t_13); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __pyx_t_12 = PyObject_RichCompare(__pyx_t_11, __pyx_t_3, Py_GT); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 660; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-    if (__pyx_t_5) {
+    if (__pyx_t_6) {
       __Pyx_INCREF(__pyx_t_11);
       __pyx_t_10 = __pyx_t_11;
     } else {
@@ -13124,7 +13286,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __pyx_v_left = __pyx_t_10;
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-    /* "cvcf.pyx":661
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":661
  *         if self._reference:
  *             left = max(0,pos-100)
  *             faref_leftflank = get_sequence(chrom,left,pos+len(ref),self._reference)             # <<<<<<<<<<<<<<
@@ -13133,37 +13295,37 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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     __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
     __pyx_t_12 = PyNumber_Add(__pyx_v_pos, __pyx_t_11); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
     __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __pyx_t_3 = PyTuple_New(4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_chrom);
-    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_chrom);
+    PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_chrom);
     __Pyx_GIVEREF(__pyx_v_chrom);
     __Pyx_INCREF(__pyx_v_left);
-    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_left);
+    PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_left);
     __Pyx_GIVEREF(__pyx_v_left);
-    PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_12);
+    PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_t_12);
     __Pyx_GIVEREF(__pyx_t_12);
-    PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_11);
+    PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_t_11);
     __Pyx_GIVEREF(__pyx_t_11);
     __pyx_t_12 = 0;
     __pyx_t_11 = 0;
-    __pyx_t_11 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_Call(__pyx_t_10, __pyx_t_3, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 661; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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     __pyx_v_faref_leftflank = __pyx_t_11;
     __pyx_t_11 = 0;
 
-    /* "cvcf.pyx":662
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":662
  *             left = max(0,pos-100)
  *             faref_leftflank = get_sequence(chrom,left,pos+len(ref),self._reference)
  *             faref = faref_leftflank[pos-left:]             # <<<<<<<<<<<<<<
@@ -13172,15 +13334,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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     __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_4 = __Pyx_PyIndex_AsSsize_t(__pyx_t_11); if (unlikely((__pyx_t_4 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 662; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_t_11); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 662; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-    __pyx_t_11 = __Pyx_PySequence_GetSlice(__pyx_v_faref_leftflank, __pyx_t_4, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 662; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PySequence_GetSlice(__pyx_v_faref_leftflank, __pyx_t_5, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 662; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
     __Pyx_DECREF(__pyx_v_faref);
     __pyx_v_faref = __pyx_t_11;
     __pyx_t_11 = 0;
 
-    /* "cvcf.pyx":663
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":663
  *             faref_leftflank = get_sequence(chrom,left,pos+len(ref),self._reference)
  *             faref = faref_leftflank[pos-left:]
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@@ -13189,45 +13351,45 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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     __pyx_t_11 = PyObject_RichCompare(__pyx_v_faref, __pyx_v_ref, Py_NE); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-    if (__pyx_t_5) {
+    if (__pyx_t_6) {
       __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__WRONG_REF); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
       __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_faref);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_faref);
       __Pyx_GIVEREF(__pyx_v_faref);
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       PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_v_ref);
       __Pyx_GIVEREF(__pyx_v_ref);
-      __pyx_t_12 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_103), ((PyObject *)__pyx_t_10)); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_64), __pyx_t_10); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_2);
-      __Pyx_GIVEREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_3);
+      __Pyx_GIVEREF(__pyx_t_3);
       PyTuple_SET_ITEM(__pyx_t_10, 2, ((PyObject *)__pyx_t_12));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_12));
-      __pyx_t_2 = 0;
+      __pyx_t_3 = 0;
       __pyx_t_12 = 0;
-      __pyx_t_12 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyObject_Call(__pyx_t_11, __pyx_t_10, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 663; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
       goto __pyx_L28;
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     __pyx_L28:;
 
-    /* "cvcf.pyx":664
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":664
  *             faref = faref_leftflank[pos-left:]
  *             if faref != ref: self.error(line,self.WRONG_REF,"(reference is %s, VCF says %s)" % (faref,ref))
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@@ -13241,7 +13403,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   }
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-  /* "cvcf.pyx":667
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":667
  * 
  *         # convert v3.3 to v4.0 alleles below
  *         if cols[4] == ".": alt = []             # <<<<<<<<<<<<<<
@@ -13250,12 +13412,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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   __Pyx_GOTREF(__pyx_t_12);
-  __pyx_t_10 = PyObject_RichCompare(__pyx_t_12, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 667; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyObject_RichCompare(__pyx_t_12, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 667; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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   __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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+  __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 667; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  if (__pyx_t_5) {
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     __pyx_t_10 = PyList_New(0); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 667; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_10));
     __Pyx_DECREF(__pyx_v_alt);
@@ -13265,7 +13427,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   }
   /*else*/ {
 
-    /* "cvcf.pyx":668
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":668
  *         # convert v3.3 to v4.0 alleles below
  *         if cols[4] == ".": alt = []
  *         else: alt = cols[4].upper().split(',')             # <<<<<<<<<<<<<<
@@ -13283,36 +13445,42 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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     __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    __pyx_t_10 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_k_tuple_104), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_10);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
+    PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_kp_s_2));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
+    __pyx_t_11 = PyObject_Call(__pyx_t_12, __pyx_t_10, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_11);
     __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
     __Pyx_DECREF(__pyx_v_alt);
-    __pyx_v_alt = __pyx_t_10;
-    __pyx_t_10 = 0;
+    __pyx_v_alt = __pyx_t_11;
+    __pyx_t_11 = 0;
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   __pyx_L29:;
 
-  /* "cvcf.pyx":670
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":670
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-  __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_cols, 5, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 670; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_11 = __Pyx_GetItemInt(__pyx_v_cols, 5, sizeof(long), PyInt_FromLong); if (!__pyx_t_11) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 670; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_11);
+  __pyx_t_10 = PyObject_RichCompare(__pyx_t_11, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 670; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_12 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 670; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_12);
+  __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 670; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  if (__pyx_t_5) {
+  if (__pyx_t_6) {
     __pyx_v_qual = -1.0;
     goto __pyx_L30;
   }
   /*else*/ {
 
-    /* "cvcf.pyx":672
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":672
  *         if cols[5] == ".": qual = -1
  *         else:
  *             try:    qual = float(cols[5])             # <<<<<<<<<<<<<<
@@ -13326,10 +13494,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_cols, 5, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 672; __pyx_clineno = __LINE__; goto __pyx_L31_error;}
+        __Pyx_GOTREF(__pyx_t_10);
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+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __pyx_v_qual = __pyx_t_14;
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@@ -13337,15 +13505,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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-      __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
       __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
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       __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
       __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
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-      __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-      /* "cvcf.pyx":673
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
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         __Pyx_GIVEREF(__pyx_v_line);
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         __Pyx_GIVEREF(__pyx_t_9);
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+        __pyx_t_9 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 673; __pyx_clineno = __LINE__; goto __pyx_L33_except_error;}
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+  __pyx_t_11 = PyObject_RichCompare(__pyx_t_12, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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-  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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-    __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_cols, 6, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_10);
-    __pyx_t_11 = PyObject_RichCompare(__pyx_t_10, ((PyObject *)__pyx_n_s__PASS), Py_EQ); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (!__pyx_t_6) {
+    __pyx_t_11 = __Pyx_GetItemInt(__pyx_v_cols, 6, sizeof(long), PyInt_FromLong); if (!__pyx_t_11) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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+    __pyx_t_12 = PyObject_RichCompare(__pyx_t_11, ((PyObject *)__pyx_n_s__PASS), Py_EQ); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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+    __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 676; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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+      __Pyx_GOTREF(__pyx_t_12);
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-      __Pyx_GOTREF(__pyx_t_10);
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       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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       __pyx_t_15 = __pyx_t_7;
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-    __pyx_t_7 = __pyx_t_15;
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-    __pyx_t_7 = __pyx_t_5;
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_10));
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     goto __pyx_L41;
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-    /* "cvcf.pyx":677
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+    __pyx_t_11 = __Pyx_GetItemInt(__pyx_v_cols, 6, sizeof(long), PyInt_FromLong); if (!__pyx_t_11) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 677; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    __Pyx_GOTREF(__pyx_t_12);
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+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_7));
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+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_7));
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     __Pyx_GOTREF(__pyx_t_10);
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@@ -13465,7 +13639,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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-  /* "cvcf.pyx":680
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":680
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-  /* "cvcf.pyx":681
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":681
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+  __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 681; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-  if (__pyx_t_7) {
+  if (__pyx_t_8) {
 
-    /* "cvcf.pyx":682
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":682
  *         info = {}
  *         if cols[7] != ".":
  *             for blurp in cols[7].split(';'):             # <<<<<<<<<<<<<<
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+    __pyx_t_11 = PyTuple_New(1); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_11);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_7));
+    PyTuple_SET_ITEM(__pyx_t_11, 0, ((PyObject *)__pyx_kp_s_7));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_7));
+    __pyx_t_12 = PyObject_Call(__pyx_t_10, __pyx_t_11, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_12);
     __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-    if (PyList_CheckExact(__pyx_t_11) || PyTuple_CheckExact(__pyx_t_11)) {
-      __pyx_t_4 = 0; __pyx_t_10 = __pyx_t_11; __Pyx_INCREF(__pyx_t_10);
+    __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+    if (PyList_CheckExact(__pyx_t_12) || PyTuple_CheckExact(__pyx_t_12)) {
+      __pyx_t_5 = 0; __pyx_t_11 = __pyx_t_12; __Pyx_INCREF(__pyx_t_11);
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-      __pyx_t_4 = -1; __pyx_t_10 = PyObject_GetIter(__pyx_t_11); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_5 = -1; __pyx_t_11 = PyObject_GetIter(__pyx_t_12); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_11);
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-    __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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-      if (likely(PyList_CheckExact(__pyx_t_10))) {
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-        __pyx_t_11 = PyTuple_GET_ITEM(__pyx_t_10, __pyx_t_4); __Pyx_INCREF(__pyx_t_11); __pyx_t_4++;
+      if (likely(PyList_CheckExact(__pyx_t_11))) {
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+        __pyx_t_12 = PyList_GET_ITEM(__pyx_t_11, __pyx_t_5); __Pyx_INCREF(__pyx_t_12); __pyx_t_5++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_11))) {
+        if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_11)) break;
+        __pyx_t_12 = PyTuple_GET_ITEM(__pyx_t_11, __pyx_t_5); __Pyx_INCREF(__pyx_t_12); __pyx_t_5++;
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-        __pyx_t_11 = PyIter_Next(__pyx_t_10);
-        if (!__pyx_t_11) {
+        __pyx_t_12 = PyIter_Next(__pyx_t_11);
+        if (!__pyx_t_12) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
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-        __Pyx_GOTREF(__pyx_t_11);
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+      __pyx_t_12 = 0;
 
-      /* "cvcf.pyx":683
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":683
  *         if cols[7] != ".":
  *             for blurp in cols[7].split(';'):
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  *                 if len(elts) == 1: v = None
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-      __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_12 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_k_tuple_107), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyObject_GetAttr(__pyx_v_blurp, __pyx_n_s__split); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
-      __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+      __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
+      __Pyx_INCREF(((PyObject *)__pyx_kp_s_8));
+      PyTuple_SET_ITEM(__pyx_t_10, 0, ((PyObject *)__pyx_kp_s_8));
+      __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_8));
+      __pyx_t_9 = PyObject_Call(__pyx_t_12, __pyx_t_10, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __Pyx_DECREF(__pyx_v_elts);
-      __pyx_v_elts = __pyx_t_12;
-      __pyx_t_12 = 0;
+      __pyx_v_elts = __pyx_t_9;
+      __pyx_t_9 = 0;
 
-      /* "cvcf.pyx":684
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":684
  *             for blurp in cols[7].split(';'):
  *                 elts = blurp.split('=')
  *                 if len(elts) == 1: v = None             # <<<<<<<<<<<<<<
  *                 elif len(elts) == 2: v = elts[1]
  *                 else: self.error(line,self.ERROR_INFO_STRING)
  */
-      __pyx_t_3 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = (__pyx_t_3 == 1);
-      if (__pyx_t_7) {
+      __pyx_t_4 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 684; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = (__pyx_t_4 == 1);
+      if (__pyx_t_8) {
         __Pyx_INCREF(Py_None);
         __Pyx_DECREF(__pyx_v_v);
         __pyx_v_v = Py_None;
         goto __pyx_L45;
       }
 
-      /* "cvcf.pyx":685
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":685
  *                 elts = blurp.split('=')
  *                 if len(elts) == 1: v = None
  *                 elif len(elts) == 2: v = elts[1]             # <<<<<<<<<<<<<<
  *                 else: self.error(line,self.ERROR_INFO_STRING)
  *                 info[elts[0]] = self.parse_formatdata(elts[0], v, self._info, line)
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-      __pyx_t_3 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = (__pyx_t_3 == 2);
-      if (__pyx_t_7) {
-        __pyx_t_12 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_12) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+      __pyx_t_4 = PyObject_Length(__pyx_v_elts); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = (__pyx_t_4 == 2);
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+        __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_elts, 1, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 685; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
         __Pyx_DECREF(__pyx_v_v);
-        __pyx_v_v = __pyx_t_12;
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+        __pyx_t_9 = 0;
         goto __pyx_L45;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":686
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":686
  *                 if len(elts) == 1: v = None
  *                 elif len(elts) == 2: v = elts[1]
  *                 else: self.error(line,self.ERROR_INFO_STRING)             # <<<<<<<<<<<<<<
  *                 info[elts[0]] = self.parse_formatdata(elts[0], v, self._info, line)
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-        __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
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+        __Pyx_GOTREF(__pyx_t_10);
+        __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_12);
-        __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ERROR_INFO_STRING); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_9));
         __Pyx_INCREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
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         __Pyx_GIVEREF(__pyx_v_line);
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-        __Pyx_GIVEREF(__pyx_t_11);
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-        __pyx_t_11 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_11);
+        PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_10);
+        __Pyx_GIVEREF(__pyx_t_10);
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+        __pyx_t_10 = PyObject_Call(__pyx_t_9, __pyx_t_12, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 686; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_10);
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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-        __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       }
       __pyx_L45:;
 
-      /* "cvcf.pyx":687
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":687
  *                 elif len(elts) == 2: v = elts[1]
  *                 else: self.error(line,self.ERROR_INFO_STRING)
  *                 info[elts[0]] = self.parse_formatdata(elts[0], v, self._info, line)             # <<<<<<<<<<<<<<
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  *         # Gracefully deal with absent FORMAT column
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-      __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_formatdata); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+      __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_formatdata); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_12 = __Pyx_GetItemInt(__pyx_v_elts, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_12) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_12);
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_9);
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+      __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___info); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 687; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
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+      __Pyx_GOTREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_12);
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       goto __pyx_L49;
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     __pyx_L49:;
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-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":698
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":698
  * 
  *         # check: format fields are defined
  *         for f in format:             # <<<<<<<<<<<<<<
@@ -13778,129 +13970,129 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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  */
   if (PyList_CheckExact(__pyx_v_format) || PyTuple_CheckExact(__pyx_v_format)) {
-    __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_format; __Pyx_INCREF(__pyx_t_12);
+    __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_format; __Pyx_INCREF(__pyx_t_2);
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-    __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_format); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_format); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
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   for (;;) {
-    if (likely(PyList_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_1 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++;
-    } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_1); __pyx_t_4++;
+    if (likely(PyList_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_11 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_11); __pyx_t_5++;
+    } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_11 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_11); __pyx_t_5++;
     } else {
-      __pyx_t_1 = PyIter_Next(__pyx_t_12);
-      if (!__pyx_t_1) {
+      __pyx_t_11 = PyIter_Next(__pyx_t_2);
+      if (!__pyx_t_11) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 698; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
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-      __Pyx_GOTREF(__pyx_t_1);
+      __Pyx_GOTREF(__pyx_t_11);
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     __Pyx_DECREF(__pyx_v_f);
-    __pyx_v_f = __pyx_t_1;
-    __pyx_t_1 = 0;
+    __pyx_v_f = __pyx_t_11;
+    __pyx_t_11 = 0;
 
-    /* "cvcf.pyx":699
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":699
  *         # check: format fields are defined
  *         for f in format:
  *             if f not in self._format: self.error(line,self.FORMAT_NOT_DEFINED, f)             # <<<<<<<<<<<<<<
  * 
  *         # convert v3.3 alleles
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-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_7 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_t_1, __pyx_v_f))); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    if (__pyx_t_7) {
-      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__FORMAT_NOT_DEFINED); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_11);
+    __pyx_t_8 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_t_11, __pyx_v_f))); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+    if (__pyx_t_8) {
+      __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__FORMAT_NOT_DEFINED); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_line);
+      PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_11);
-      __Pyx_GIVEREF(__pyx_t_11);
+      PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_10);
+      __Pyx_GIVEREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_f);
-      PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_v_f);
+      PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
-      __pyx_t_11 = 0;
-      __pyx_t_11 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_11);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __pyx_t_10 = 0;
+      __pyx_t_10 = PyObject_Call(__pyx_t_11, __pyx_t_9, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 699; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       goto __pyx_L52;
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     __pyx_L52:;
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-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":702
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":702
  * 
  *         # convert v3.3 alleles
  *         if self._version == 33:             # <<<<<<<<<<<<<<
  *             if len(ref) != 1: self.error(line,self.V33_BAD_REF)
  *             newalts = []
  */
-  __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___version); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_12);
-  __pyx_t_11 = PyObject_RichCompare(__pyx_t_12, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_11);
-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-  __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-  if (__pyx_t_7) {
+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___version); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_10 = PyObject_RichCompare(__pyx_t_2, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_10);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 702; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+  if (__pyx_t_8) {
 
-    /* "cvcf.pyx":703
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":703
  *         # convert v3.3 alleles
  *         if self._version == 33:
  *             if len(ref) != 1: self.error(line,self.V33_BAD_REF)             # <<<<<<<<<<<<<<
  *             newalts = []
  *             have_deletions = False
  */
-    __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_7 = (__pyx_t_4 != 1);
-    if (__pyx_t_7) {
-      __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_REF); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
-      __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+    __pyx_t_5 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = (__pyx_t_5 != 1);
+    if (__pyx_t_8) {
+      __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_REF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_INCREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_line);
+      PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_12);
-      __Pyx_GIVEREF(__pyx_t_12);
-      __pyx_t_12 = 0;
-      __pyx_t_12 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
-      __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_2);
+      __Pyx_GIVEREF(__pyx_t_2);
+      __pyx_t_2 = 0;
+      __pyx_t_2 = PyObject_Call(__pyx_t_10, __pyx_t_9, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 703; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       goto __pyx_L54;
     }
     __pyx_L54:;
 
-    /* "cvcf.pyx":704
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":704
  *         if self._version == 33:
  *             if len(ref) != 1: self.error(line,self.V33_BAD_REF)
  *             newalts = []             # <<<<<<<<<<<<<<
  *             have_deletions = False
  *             for a in alt:
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-    __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+    __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 704; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
     __Pyx_DECREF(((PyObject *)__pyx_v_newalts));
-    __pyx_v_newalts = __pyx_t_12;
-    __pyx_t_12 = 0;
+    __pyx_v_newalts = __pyx_t_2;
+    __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":705
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":705
  *             if len(ref) != 1: self.error(line,self.V33_BAD_REF)
  *             newalts = []
  *             have_deletions = False             # <<<<<<<<<<<<<<
@@ -13909,7 +14101,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
     __pyx_v_have_deletions = 0;
 
-    /* "cvcf.pyx":706
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":706
  *             newalts = []
  *             have_deletions = False
  *             for a in alt:             # <<<<<<<<<<<<<<
@@ -13917,103 +14109,115 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
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     if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-      __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+      __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
     } else {
-      __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
+      __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
     }
     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_12))) {
-        if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-        __pyx_t_10 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_10); __pyx_t_4++;
-      } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-        if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-        __pyx_t_10 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_10); __pyx_t_4++;
+      if (likely(PyList_CheckExact(__pyx_t_2))) {
+        if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+        __pyx_t_9 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_9); __pyx_t_5++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+        if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+        __pyx_t_9 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_9); __pyx_t_5++;
       } else {
-        __pyx_t_10 = PyIter_Next(__pyx_t_12);
-        if (!__pyx_t_10) {
+        __pyx_t_9 = PyIter_Next(__pyx_t_2);
+        if (!__pyx_t_9) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 706; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
         }
-        __Pyx_GOTREF(__pyx_t_10);
+        __Pyx_GOTREF(__pyx_t_9);
       }
       __Pyx_DECREF(__pyx_v_a);
-      __pyx_v_a = __pyx_t_10;
-      __pyx_t_10 = 0;
+      __pyx_v_a = __pyx_t_9;
+      __pyx_t_9 = 0;
 
-      /* "cvcf.pyx":707
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":707
  *             have_deletions = False
  *             for a in alt:
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference             # <<<<<<<<<<<<<<
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  */
-      __pyx_t_3 = PyObject_Length(__pyx_v_a); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_7 = (__pyx_t_3 == 1);
-      if (__pyx_t_7) {
-        __pyx_t_10 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Length(__pyx_v_a); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_8 = (__pyx_t_4 == 1);
+      if (__pyx_t_8) {
+        __pyx_t_9 = PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_10 = PyNumber_Add(__pyx_v_a, __pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_11 = PyNumber_Add(__pyx_v_a, __pyx_t_10); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 707; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_11);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_v_a);
-        __pyx_v_a = __pyx_t_11;
-        __pyx_t_11 = 0;
+        __pyx_v_a = __pyx_t_10;
+        __pyx_t_10 = 0;
         goto __pyx_L57;
       }
 
-      /* "cvcf.pyx":708
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":708
  *             for a in alt:
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference             # <<<<<<<<<<<<<<
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True
  */
-      __pyx_t_11 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_11);
-      __pyx_t_10 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_k_tuple_109), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_INCREF(((PyObject *)__pyx_n_s__I));
+      PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_n_s__I));
+      __Pyx_GIVEREF(((PyObject *)__pyx_n_s__I));
+      __pyx_t_11 = PyObject_Call(__pyx_t_10, __pyx_t_9, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_11);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      if (__pyx_t_7) {
-        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_11 = __Pyx_PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_11);
-        __pyx_t_1 = PyNumber_Add(__pyx_t_10, __pyx_t_11); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-        __pyx_t_11 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+      if (__pyx_t_8) {
+        __pyx_t_11 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_11) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_11);
-        __pyx_t_10 = PyNumber_Add(__pyx_t_1, __pyx_t_11); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_10 = PyNumber_Add(__pyx_t_11, __pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
         __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __pyx_t_9 = PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_11 = PyNumber_Add(__pyx_t_10, __pyx_t_9); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_11);
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         __Pyx_DECREF(__pyx_v_a);
-        __pyx_v_a = __pyx_t_10;
-        __pyx_t_10 = 0;
+        __pyx_v_a = __pyx_t_11;
+        __pyx_t_11 = 0;
         goto __pyx_L57;
       }
 
-      /* "cvcf.pyx":709
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":709
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
  *                 elif a.startswith('D'): # allow D<seq> and D<num>             # <<<<<<<<<<<<<<
  *                     have_deletions = True
  *                     try:
  */
-      __pyx_t_10 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_11 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_k_tuple_110), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_11);
-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_INCREF(((PyObject *)__pyx_n_s__D));
+      PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_n_s__D));
+      __Pyx_GIVEREF(((PyObject *)__pyx_n_s__D));
+      __pyx_t_10 = PyObject_Call(__pyx_t_11, __pyx_t_9, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-      if (__pyx_t_7) {
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+      if (__pyx_t_8) {
 
-        /* "cvcf.pyx":710
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":710
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True             # <<<<<<<<<<<<<<
@@ -14022,7 +14226,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
         __pyx_v_have_deletions = 1;
 
-        /* "cvcf.pyx":711
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":711
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True
  *                     try:             # <<<<<<<<<<<<<<
@@ -14037,99 +14241,99 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
           __Pyx_XGOTREF(__pyx_save_exc_tb);
           /*try:*/ {
 
-            /* "cvcf.pyx":712
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":712
  *                     have_deletions = True
  *                     try:
  *                         l = int(a[1:])          # throws ValueError if sequence             # <<<<<<<<<<<<<<
  *                         if len(ref) < l:        # add to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
  */
-            __pyx_t_11 = __Pyx_PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-            __Pyx_GOTREF(__pyx_t_11);
-            __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_10));
-            PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_11);
-            __Pyx_GIVEREF(__pyx_t_11);
-            __pyx_t_11 = 0;
-            __pyx_t_11 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-            __Pyx_GOTREF(__pyx_t_11);
-            __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+            __pyx_t_10 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_GOTREF(__pyx_t_10);
+            __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_GOTREF(__pyx_t_9);
+            PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_10);
+            __Pyx_GIVEREF(__pyx_t_10);
+            __pyx_t_10 = 0;
+            __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_9, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 712; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_GOTREF(__pyx_t_10);
+            __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
             __Pyx_DECREF(__pyx_v_l);
-            __pyx_v_l = __pyx_t_11;
-            __pyx_t_11 = 0;
+            __pyx_v_l = __pyx_t_10;
+            __pyx_t_10 = 0;
 
-            /* "cvcf.pyx":713
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":713
  *                     try:
  *                         l = int(a[1:])          # throws ValueError if sequence
  *                         if len(ref) < l:        # add to reference if necessary             # <<<<<<<<<<<<<<
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
  *                             ref += addns
  */
-            __pyx_t_3 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-            __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-            __Pyx_GOTREF(__pyx_t_11);
-            __pyx_t_10 = PyObject_RichCompare(__pyx_t_11, __pyx_v_l, Py_LT); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __pyx_t_10 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
             __Pyx_GOTREF(__pyx_t_10);
-            __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-            __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __pyx_t_9 = PyObject_RichCompare(__pyx_t_10, __pyx_v_l, Py_LT); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_GOTREF(__pyx_t_9);
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            if (__pyx_t_7) {
+            __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 713; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+            if (__pyx_t_8) {
 
-              /* "cvcf.pyx":714
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":714
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  *                         if len(ref) < l:        # add to reference if necessary
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  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
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-              __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __pyx_t_9 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_9);
+              __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __pyx_t_10 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
               __Pyx_GOTREF(__pyx_t_10);
-              __pyx_t_3 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __Pyx_GOTREF(__pyx_t_11);
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-              __Pyx_GOTREF(__pyx_t_1);
-              __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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+              __pyx_t_11 = PyNumber_Add(__pyx_v_pos, __pyx_t_10); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
               __Pyx_GOTREF(__pyx_t_11);
-              __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __Pyx_GOTREF(__pyx_t_9);
-              __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+              __pyx_t_10 = PyNumber_Add(__pyx_v_pos, __pyx_v_l); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_10);
+              __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_12);
+              __pyx_t_3 = PyTuple_New(4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_3);
               __Pyx_INCREF(__pyx_v_chrom);
-              PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_chrom);
+              PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_chrom);
               __Pyx_GIVEREF(__pyx_v_chrom);
-              PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
-              __Pyx_GIVEREF(__pyx_t_1);
-              PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_11);
+              PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_11);
               __Pyx_GIVEREF(__pyx_t_11);
-              PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_9);
-              __Pyx_GIVEREF(__pyx_t_9);
-              __pyx_t_1 = 0;
+              PyTuple_SET_ITEM(__pyx_t_3, 2, __pyx_t_10);
+              __Pyx_GIVEREF(__pyx_t_10);
+              PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_t_12);
+              __Pyx_GIVEREF(__pyx_t_12);
               __pyx_t_11 = 0;
-              __pyx_t_9 = 0;
-              __pyx_t_9 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __Pyx_GOTREF(__pyx_t_9);
-              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+              __pyx_t_10 = 0;
+              __pyx_t_12 = 0;
+              __pyx_t_12 = PyObject_Call(__pyx_t_9, __pyx_t_3, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 714; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_12);
+              __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
               __Pyx_DECREF(__pyx_v_addns);
-              __pyx_v_addns = __pyx_t_9;
-              __pyx_t_9 = 0;
+              __pyx_v_addns = __pyx_t_12;
+              __pyx_t_12 = 0;
 
-              /* "cvcf.pyx":715
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":715
  *                         if len(ref) < l:        # add to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
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  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
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-              __pyx_t_9 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addns); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 715; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
-              __Pyx_GOTREF(__pyx_t_9);
+              __pyx_t_12 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addns); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 715; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              __Pyx_GOTREF(__pyx_t_12);
               __Pyx_DECREF(__pyx_v_ref);
-              __pyx_v_ref = __pyx_t_9;
-              __pyx_t_9 = 0;
+              __pyx_v_ref = __pyx_t_12;
+              __pyx_t_12 = 0;
 
-              /* "cvcf.pyx":716
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":716
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns             # <<<<<<<<<<<<<<
@@ -14137,60 +14341,64 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                     except ValueError:
  */
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+              __pyx_t_12 = __pyx_int_0;
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+              } else {
+                PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 716; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+              }
               for (;;) {
-                if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_2)) break;
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+                if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_3)) break;
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                 __Pyx_DECREF(__pyx_v_na);
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-                __pyx_t_10 = 0;
-                __Pyx_INCREF(__pyx_t_9);
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+                __pyx_t_9 = 0;
+                __Pyx_INCREF(__pyx_t_12);
                 __Pyx_DECREF(__pyx_v_i);
-                __pyx_v_i = __pyx_t_9;
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-                __Pyx_GOTREF(__pyx_t_10);
-                __Pyx_DECREF(__pyx_t_9);
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-                __pyx_t_10 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 716; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
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-                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __pyx_v_i = __pyx_t_12;
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+                __Pyx_GOTREF(__pyx_t_9);
+                __Pyx_DECREF(__pyx_t_12);
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+                __pyx_t_9 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 716; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+                __Pyx_GOTREF(__pyx_t_9);
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+                __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
               }
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+              __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+              __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
               goto __pyx_L66;
             }
             __pyx_L66:;
 
-            /* "cvcf.pyx":717
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":717
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  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
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  *                         s = a[1:]
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-            __Pyx_GOTREF(__pyx_t_9);
+            __pyx_t_4 = __Pyx_PyIndex_AsSsize_t(__pyx_v_l); if (unlikely((__pyx_t_4 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 717; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __pyx_t_12 = PySequence_GetSlice(__pyx_v_ref, __pyx_t_4, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 717; __pyx_clineno = __LINE__; goto __pyx_L58_error;}
+            __Pyx_GOTREF(__pyx_t_12);
             __Pyx_DECREF(__pyx_v_a);
-            __pyx_v_a = __pyx_t_9;
-            __pyx_t_9 = 0;
+            __pyx_v_a = __pyx_t_12;
+            __pyx_t_12 = 0;
           }
           __Pyx_XDECREF(__pyx_save_exc_type); __pyx_save_exc_type = 0;
           __Pyx_XDECREF(__pyx_save_exc_value); __pyx_save_exc_value = 0;
           __Pyx_XDECREF(__pyx_save_exc_tb); __pyx_save_exc_tb = 0;
           goto __pyx_L65_try_end;
           __pyx_L58_error:;
-          __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
           __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
           __Pyx_XDECREF(__pyx_t_11); __pyx_t_11 = 0;
           __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
           __Pyx_XDECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __Pyx_XDECREF(__pyx_t_12); __pyx_t_12 = 0;
 
-          /* "cvcf.pyx":718
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":718
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  *                         a = ref[l:]             # new deletion, deleting pos...pos+l
  *                     except ValueError:             # <<<<<<<<<<<<<<
@@ -14200,180 +14408,180 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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           if (__pyx_t_16) {
             __Pyx_AddTraceback("cvcf.VCF.parse_data");
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+            if (__Pyx_GetException(&__pyx_t_12, &__pyx_t_3, &__pyx_t_9) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 718; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+            __Pyx_GOTREF(__pyx_t_12);
+            __Pyx_GOTREF(__pyx_t_3);
             __Pyx_GOTREF(__pyx_t_9);
-            __Pyx_GOTREF(__pyx_t_2);
-            __Pyx_GOTREF(__pyx_t_10);
 
-            /* "cvcf.pyx":719
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":719
  *                         a = ref[l:]             # new deletion, deleting pos...pos+l
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  *                         if len(ref) < len(s):   # add Ns to reference if necessary
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-            __pyx_t_11 = __Pyx_PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 719; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-            __Pyx_GOTREF(__pyx_t_11);
+            __pyx_t_10 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 719; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+            __Pyx_GOTREF(__pyx_t_10);
             __Pyx_DECREF(__pyx_v_s);
-            __pyx_v_s = __pyx_t_11;
-            __pyx_t_11 = 0;
+            __pyx_v_s = __pyx_t_10;
+            __pyx_t_10 = 0;
 
-            /* "cvcf.pyx":720
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":720
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  *                         s = a[1:]
  *                         if len(ref) < len(s):   # add Ns to reference if necessary             # <<<<<<<<<<<<<<
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
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-            __pyx_t_3 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 720; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+            __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 720; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
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-            __pyx_t_7 = (__pyx_t_3 < __pyx_t_17);
-            if (__pyx_t_7) {
+            __pyx_t_8 = (__pyx_t_4 < __pyx_t_17);
+            if (__pyx_t_8) {
 
-              /* "cvcf.pyx":721
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":721
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  *                         if len(ref) < len(s):   # add Ns to reference if necessary
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-              __Pyx_GOTREF(__pyx_t_11);
+              __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __Pyx_GOTREF(__pyx_t_10);
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+              __Pyx_GOTREF(__pyx_t_11);
+              __pyx_t_1 = PyNumber_Add(__pyx_v_pos, __pyx_t_11); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
               __Pyx_GOTREF(__pyx_t_1);
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-              __Pyx_GOTREF(__pyx_t_8);
-              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+              __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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-              __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_17); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-              __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_18 = PyNumber_Add(__pyx_v_pos, __pyx_t_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __pyx_t_11 = PyInt_FromSsize_t(__pyx_t_17); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __Pyx_GOTREF(__pyx_t_11);
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               __Pyx_GOTREF(__pyx_t_18);
-              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-              __Pyx_GOTREF(__pyx_t_1);
+              __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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+              __Pyx_GOTREF(__pyx_t_11);
               __pyx_t_19 = PyTuple_New(4); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_19));
+              __Pyx_GOTREF(__pyx_t_19);
               __Pyx_INCREF(__pyx_v_chrom);
               PyTuple_SET_ITEM(__pyx_t_19, 0, __pyx_v_chrom);
               __Pyx_GIVEREF(__pyx_v_chrom);
-              PyTuple_SET_ITEM(__pyx_t_19, 1, __pyx_t_8);
-              __Pyx_GIVEREF(__pyx_t_8);
+              PyTuple_SET_ITEM(__pyx_t_19, 1, __pyx_t_1);
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               PyTuple_SET_ITEM(__pyx_t_19, 2, __pyx_t_18);
               __Pyx_GIVEREF(__pyx_t_18);
-              PyTuple_SET_ITEM(__pyx_t_19, 3, __pyx_t_1);
-              __Pyx_GIVEREF(__pyx_t_1);
-              __pyx_t_8 = 0;
-              __pyx_t_18 = 0;
+              PyTuple_SET_ITEM(__pyx_t_19, 3, __pyx_t_11);
+              __Pyx_GIVEREF(__pyx_t_11);
               __pyx_t_1 = 0;
-              __pyx_t_1 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_19), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-              __Pyx_GOTREF(__pyx_t_1);
-              __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_19)); __pyx_t_19 = 0;
+              __pyx_t_18 = 0;
+              __pyx_t_11 = 0;
+              __pyx_t_11 = PyObject_Call(__pyx_t_10, __pyx_t_19, NULL); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 721; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __Pyx_GOTREF(__pyx_t_11);
+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+              __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
               __Pyx_DECREF(__pyx_v_addns);
-              __pyx_v_addns = __pyx_t_1;
-              __pyx_t_1 = 0;
+              __pyx_v_addns = __pyx_t_11;
+              __pyx_t_11 = 0;
 
-              /* "cvcf.pyx":722
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":722
  *                         if len(ref) < len(s):   # add Ns to reference if necessary
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  *                                 self.error(line,self.V33_UNMATCHED_DELETION,
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-              __Pyx_GOTREF(__pyx_t_1);
+              __pyx_t_11 = PyObject_GetAttr(__pyx_v_s, __pyx_n_s__endswith); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __Pyx_GOTREF(__pyx_t_11);
               __pyx_t_19 = PyTuple_New(1); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_19));
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               __Pyx_INCREF(__pyx_v_addns);
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-              __Pyx_GOTREF(__pyx_t_11);
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+              __pyx_t_10 = PyObject_Call(__pyx_t_11, __pyx_t_19, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              __Pyx_GOTREF(__pyx_t_10);
               __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
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+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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                 __pyx_t_17 = PyObject_Length(__pyx_v_addns); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
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+                __pyx_t_19 = PyNumber_Multiply(((PyObject *)__pyx_n_s__N), __pyx_t_10); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(((PyObject *)__pyx_t_19));
-                __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-                __pyx_t_11 = PyObject_RichCompare(__pyx_v_addns, ((PyObject *)__pyx_t_19), Py_NE); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_11);
+                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __pyx_t_10 = PyObject_RichCompare(__pyx_v_addns, ((PyObject *)__pyx_t_19), Py_NE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_10);
                 __Pyx_DECREF(((PyObject *)__pyx_t_19)); __pyx_t_19 = 0;
-                __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_11); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-                __pyx_t_15 = __pyx_t_7;
+                __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 722; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __pyx_t_15 = __pyx_t_8;
               } else {
-                __pyx_t_15 = __pyx_t_5;
+                __pyx_t_15 = __pyx_t_6;
               }
               if (__pyx_t_15) {
 
-                /* "cvcf.pyx":723
+                /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":723
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
  *                                 self.error(line,self.V33_UNMATCHED_DELETION,             # <<<<<<<<<<<<<<
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns
  */
-                __pyx_t_11 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_11);
-                __pyx_t_19 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_111); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_10);
+                __pyx_t_19 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_65); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(__pyx_t_19);
 
-                /* "cvcf.pyx":724
+                /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":724
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
  *                                 self.error(line,self.V33_UNMATCHED_DELETION,
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))             # <<<<<<<<<<<<<<
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  */
-                __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_1);
+                __pyx_t_11 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_11);
                 __pyx_t_17 = PyObject_Length(__pyx_v_s); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_17); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(__pyx_t_18);
-                __pyx_t_8 = PyNumber_Add(__pyx_v_pos, __pyx_t_18); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_8);
+                __pyx_t_1 = PyNumber_Add(__pyx_v_pos, __pyx_t_18); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
                 __pyx_t_18 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(__pyx_t_18);
                 __pyx_t_20 = PyTuple_New(4); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_20));
+                __Pyx_GOTREF(__pyx_t_20);
                 __Pyx_INCREF(__pyx_v_chrom);
                 PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_v_chrom);
                 __Pyx_GIVEREF(__pyx_v_chrom);
                 __Pyx_INCREF(__pyx_v_pos);
                 PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_v_pos);
                 __Pyx_GIVEREF(__pyx_v_pos);
-                PyTuple_SET_ITEM(__pyx_t_20, 2, __pyx_t_8);
-                __Pyx_GIVEREF(__pyx_t_8);
+                PyTuple_SET_ITEM(__pyx_t_20, 2, __pyx_t_1);
+                __Pyx_GIVEREF(__pyx_t_1);
                 PyTuple_SET_ITEM(__pyx_t_20, 3, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
-                __pyx_t_8 = 0;
+                __pyx_t_1 = 0;
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_20), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __pyx_t_18 = PyObject_Call(__pyx_t_11, __pyx_t_20, NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(__pyx_t_18);
-                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-                __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
+                __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+                __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
                 __pyx_t_20 = PyTuple_New(2); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_20));
+                __Pyx_GOTREF(__pyx_t_20);
                 __Pyx_INCREF(__pyx_v_a);
                 PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_v_a);
                 __Pyx_GIVEREF(__pyx_v_a);
                 PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_t_18);
                 __Pyx_GIVEREF(__pyx_t_18);
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_112), ((PyObject *)__pyx_t_20)); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __pyx_t_18 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_66), __pyx_t_20); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 724; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(((PyObject *)__pyx_t_18));
-                __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
+                __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
                 __pyx_t_20 = PyTuple_New(3); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_20));
+                __Pyx_GOTREF(__pyx_t_20);
                 __Pyx_INCREF(__pyx_v_line);
                 PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_v_line);
                 __Pyx_GIVEREF(__pyx_v_line);
@@ -14383,16 +14591,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
                 __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
                 __pyx_t_19 = 0;
                 __pyx_t_18 = 0;
-                __pyx_t_18 = PyObject_Call(__pyx_t_11, ((PyObject *)__pyx_t_20), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __pyx_t_18 = PyObject_Call(__pyx_t_10, __pyx_t_20, NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 723; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
                 __Pyx_GOTREF(__pyx_t_18);
-                __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
-                __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
+                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+                __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
                 __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
                 goto __pyx_L72;
               }
               __pyx_L72:;
 
-              /* "cvcf.pyx":725
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":725
  *                                 self.error(line,self.V33_UNMATCHED_DELETION,
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns             # <<<<<<<<<<<<<<
@@ -14405,7 +14613,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
               __pyx_v_ref = __pyx_t_18;
               __pyx_t_18 = 0;
 
-              /* "cvcf.pyx":726
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":726
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns             # <<<<<<<<<<<<<<
@@ -14414,25 +14622,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
               __Pyx_INCREF(__pyx_int_0);
               __pyx_t_18 = __pyx_int_0;
-              __pyx_t_17 = 0; __pyx_t_20 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_20);
+              if (likely(((PyObject *)__pyx_v_newalts) != Py_None)) {
+                __pyx_t_17 = 0; __pyx_t_20 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_20);
+              } else {
+                PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+              }
               for (;;) {
                 if (__pyx_t_17 >= PyList_GET_SIZE(__pyx_t_20)) break;
-                __pyx_t_11 = PyList_GET_ITEM(__pyx_t_20, __pyx_t_17); __Pyx_INCREF(__pyx_t_11); __pyx_t_17++;
+                __pyx_t_10 = PyList_GET_ITEM(__pyx_t_20, __pyx_t_17); __Pyx_INCREF(__pyx_t_10); __pyx_t_17++;
                 __Pyx_DECREF(__pyx_v_na);
-                __pyx_v_na = __pyx_t_11;
-                __pyx_t_11 = 0;
+                __pyx_v_na = __pyx_t_10;
+                __pyx_t_10 = 0;
                 __Pyx_INCREF(__pyx_t_18);
                 __Pyx_DECREF(__pyx_v_i);
                 __pyx_v_i = __pyx_t_18;
-                __pyx_t_11 = PyNumber_Add(__pyx_t_18, __pyx_int_1); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_11);
+                __pyx_t_10 = PyNumber_Add(__pyx_t_18, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_10);
                 __Pyx_DECREF(__pyx_t_18);
-                __pyx_t_18 = __pyx_t_11;
-                __pyx_t_11 = 0;
-                __pyx_t_11 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_GOTREF(__pyx_t_11);
-                if (PyObject_SetItem(((PyObject *)__pyx_v_newalts), __pyx_v_i, __pyx_t_11) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-                __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
+                __pyx_t_18 = __pyx_t_10;
+                __pyx_t_10 = 0;
+                __pyx_t_10 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_GOTREF(__pyx_t_10);
+                if (PyObject_SetItem(((PyObject *)__pyx_v_newalts), __pyx_v_i, __pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 726; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+                __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               }
               __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
               __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
@@ -14440,7 +14652,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
             }
             __pyx_L71:;
 
-            /* "cvcf.pyx":727
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":727
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  *                         a = ref[len(s):]        # new deletion, deleting from pos             # <<<<<<<<<<<<<<
@@ -14448,14 +14660,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                     self.error(line,self.V33_BAD_ALLELE)
  */
             __pyx_t_17 = PyObject_Length(__pyx_v_s); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
-            __pyx_t_18 = __Pyx_PySequence_GetSlice(__pyx_v_ref, __pyx_t_17, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
+            __pyx_t_18 = PySequence_GetSlice(__pyx_v_ref, __pyx_t_17, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 727; __pyx_clineno = __LINE__; goto __pyx_L60_except_error;}
             __Pyx_GOTREF(__pyx_t_18);
             __Pyx_DECREF(__pyx_v_a);
             __pyx_v_a = __pyx_t_18;
             __pyx_t_18 = 0;
+            __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+            __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
             __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-            __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-            __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
             goto __pyx_L59_exception_handled;
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           __pyx_L60_except_error:;
@@ -14475,34 +14687,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       }
       /*else*/ {
 
-        /* "cvcf.pyx":729
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":729
  *                         a = ref[len(s):]        # new deletion, deleting from pos
  *                 else:
  *                     self.error(line,self.V33_BAD_ALLELE)             # <<<<<<<<<<<<<<
  *                 newalts.append(a)
  *             alt = newalts
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-        __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_ALLELE); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_9 = PyTuple_New(2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_9));
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_ALLELE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_12 = PyTuple_New(2); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_12);
         __Pyx_INCREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
+        PyTuple_SET_ITEM(__pyx_t_12, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_2);
-        __Pyx_GIVEREF(__pyx_t_2);
-        __pyx_t_2 = 0;
-        __pyx_t_2 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_9), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_3);
+        __Pyx_GIVEREF(__pyx_t_3);
+        __pyx_t_3 = 0;
+        __pyx_t_3 = PyObject_Call(__pyx_t_9, __pyx_t_12, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 729; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
       __pyx_L57:;
 
-      /* "cvcf.pyx":730
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":730
  *                 else:
  *                     self.error(line,self.V33_BAD_ALLELE)
  *                 newalts.append(a)             # <<<<<<<<<<<<<<
@@ -14512,11 +14724,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       if (unlikely(__pyx_v_newalts == Py_None)) {
         PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
       }
-      __pyx_t_16 = PyList_Append(__pyx_v_newalts, __pyx_v_a); if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_16 = PyList_Append(((PyObject *)__pyx_v_newalts), __pyx_v_a); if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 730; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":731
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":731
  *                     self.error(line,self.V33_BAD_ALLELE)
  *                 newalts.append(a)
  *             alt = newalts             # <<<<<<<<<<<<<<
@@ -14527,7 +14739,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __Pyx_DECREF(__pyx_v_alt);
     __pyx_v_alt = ((PyObject *)__pyx_v_newalts);
 
-    /* "cvcf.pyx":733
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":733
  *             alt = newalts
  *             # deletion alleles exist, add dummy 1st reference allele, and account for leading base
  *             if have_deletions:             # <<<<<<<<<<<<<<
@@ -14536,231 +14748,231 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
     if (__pyx_v_have_deletions) {
 
-      /* "cvcf.pyx":734
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":734
  *             # deletion alleles exist, add dummy 1st reference allele, and account for leading base
  *             if have_deletions:
  *                 if pos == 0:             # <<<<<<<<<<<<<<
  *                     # Petr Danacek's: we can't have a leading nucleotide at (1-based) position 1
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)
  */
-      __pyx_t_12 = PyObject_RichCompare(__pyx_v_pos, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
-      __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_pos, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 734; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       if (__pyx_t_15) {
 
-        /* "cvcf.pyx":736
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":736
  *                 if pos == 0:
  *                     # Petr Danacek's: we can't have a leading nucleotide at (1-based) position 1
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)             # <<<<<<<<<<<<<<
  *                     ref += addn
  *                     alt = [allele+addn for allele in alt]
  */
-        __pyx_t_12 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
-        __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_9 = PyNumber_Add(__pyx_v_pos, __pyx_t_2); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_12 = PyNumber_Add(__pyx_v_pos, __pyx_t_3); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_12);
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+        __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_5); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_9 = PyNumber_Add(__pyx_v_pos, __pyx_t_3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+        __Pyx_GOTREF(__pyx_t_3);
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_9);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_10 = PyNumber_Add(__pyx_v_pos, __pyx_t_2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
         __pyx_t_18 = PyTuple_New(4); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_18));
+        __Pyx_GOTREF(__pyx_t_18);
         __Pyx_INCREF(__pyx_v_chrom);
         PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_v_chrom);
         __Pyx_GIVEREF(__pyx_v_chrom);
-        PyTuple_SET_ITEM(__pyx_t_18, 1, __pyx_t_9);
+        PyTuple_SET_ITEM(__pyx_t_18, 1, __pyx_t_12);
+        __Pyx_GIVEREF(__pyx_t_12);
+        PyTuple_SET_ITEM(__pyx_t_18, 2, __pyx_t_3);
+        __Pyx_GIVEREF(__pyx_t_3);
+        PyTuple_SET_ITEM(__pyx_t_18, 3, __pyx_t_9);
         __Pyx_GIVEREF(__pyx_t_9);
-        PyTuple_SET_ITEM(__pyx_t_18, 2, __pyx_t_2);
-        __Pyx_GIVEREF(__pyx_t_2);
-        PyTuple_SET_ITEM(__pyx_t_18, 3, __pyx_t_10);
-        __Pyx_GIVEREF(__pyx_t_10);
+        __pyx_t_12 = 0;
+        __pyx_t_3 = 0;
         __pyx_t_9 = 0;
-        __pyx_t_2 = 0;
-        __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
+        __pyx_t_9 = PyObject_Call(__pyx_t_2, __pyx_t_18, NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 736; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
         __Pyx_DECREF(__pyx_v_addn);
-        __pyx_v_addn = __pyx_t_10;
-        __pyx_t_10 = 0;
+        __pyx_v_addn = __pyx_t_9;
+        __pyx_t_9 = 0;
 
-        /* "cvcf.pyx":737
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":737
  *                     # Petr Danacek's: we can't have a leading nucleotide at (1-based) position 1
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)
  *                     ref += addn             # <<<<<<<<<<<<<<
  *                     alt = [allele+addn for allele in alt]
  *                 else:
  */
-        __pyx_t_10 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addn); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 737; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
+        __pyx_t_9 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addn); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 737; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
         __Pyx_DECREF(__pyx_v_ref);
-        __pyx_v_ref = __pyx_t_10;
-        __pyx_t_10 = 0;
+        __pyx_v_ref = __pyx_t_9;
+        __pyx_t_9 = 0;
 
-        /* "cvcf.pyx":738
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":738
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)
  *                     ref += addn
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  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  */
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
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-            __Pyx_GOTREF(__pyx_t_12);
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         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __Pyx_INCREF(((PyObject *)__pyx_t_10));
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-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
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       }
       /*else*/ {
 
-        /* "cvcf.pyx":740
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":740
  *                     alt = [allele+addn for allele in alt]
  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)             # <<<<<<<<<<<<<<
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]
  */
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-        __Pyx_GOTREF(__pyx_t_10);
+        __pyx_t_9 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 740; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
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+        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_3 = PyTuple_New(4); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 740; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_INCREF(__pyx_v_chrom);
-        PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_chrom);
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         __Pyx_GIVEREF(__pyx_v_chrom);
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         __Pyx_GIVEREF(__pyx_t_18);
         __Pyx_INCREF(__pyx_v_pos);
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         __Pyx_GIVEREF(__pyx_v_pos);
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-        __Pyx_GIVEREF(__pyx_t_12);
+        PyTuple_SET_ITEM(__pyx_t_3, 3, __pyx_t_2);
+        __Pyx_GIVEREF(__pyx_t_2);
         __pyx_t_18 = 0;
-        __pyx_t_12 = 0;
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-        __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
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+        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         __Pyx_DECREF(__pyx_v_addn);
-        __pyx_v_addn = __pyx_t_12;
-        __pyx_t_12 = 0;
+        __pyx_v_addn = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":741
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":741
  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  *                     ref = addn + ref             # <<<<<<<<<<<<<<
  *                     alt = [addn + allele for allele in alt]
  *                     pos -= 1
  */
-        __pyx_t_12 = PyNumber_Add(__pyx_v_addn, __pyx_v_ref); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 741; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __pyx_t_2 = PyNumber_Add(__pyx_v_addn, __pyx_v_ref); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 741; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_v_ref);
-        __pyx_v_ref = __pyx_t_12;
-        __pyx_t_12 = 0;
+        __pyx_v_ref = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":742
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":742
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]             # <<<<<<<<<<<<<<
  *                     pos -= 1
  *         else:
  */
-        __pyx_t_12 = PyList_New(0); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+        __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
         if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-          __pyx_t_4 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
+          __pyx_t_5 = 0; __pyx_t_3 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_3);
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-          __pyx_t_4 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_2);
+          __pyx_t_5 = -1; __pyx_t_3 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
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         for (;;) {
-          if (likely(PyList_CheckExact(__pyx_t_2))) {
-            if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_2)) break;
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-            if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
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+          if (likely(PyList_CheckExact(__pyx_t_3))) {
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           } else {
-            __pyx_t_10 = PyIter_Next(__pyx_t_2);
-            if (!__pyx_t_10) {
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+            if (!__pyx_t_9) {
               if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               break;
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-            __Pyx_GOTREF(__pyx_t_10);
+            __Pyx_GOTREF(__pyx_t_9);
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           __Pyx_DECREF(__pyx_v_allele);
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-          __Pyx_GOTREF(__pyx_t_10);
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-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+          __pyx_v_allele = __pyx_t_9;
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+          __pyx_t_9 = PyNumber_Add(__pyx_v_addn, __pyx_v_allele); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_9))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 742; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         }
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __Pyx_INCREF(((PyObject *)__pyx_t_12));
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __Pyx_INCREF(((PyObject *)__pyx_t_2));
         __Pyx_DECREF(__pyx_v_alt);
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-        __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
+        __pyx_v_alt = ((PyObject *)__pyx_t_2);
+        __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":743
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":743
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]
  *                     pos -= 1             # <<<<<<<<<<<<<<
  *         else:
  *             # format v4.0 -- just check for nucleotides
  */
-        __pyx_t_12 = PyNumber_InPlaceSubtract(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 743; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __pyx_t_2 = PyNumber_InPlaceSubtract(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 743; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_v_pos);
-        __pyx_v_pos = __pyx_t_12;
-        __pyx_t_12 = 0;
+        __pyx_v_pos = __pyx_t_2;
+        __pyx_t_2 = 0;
       }
       __pyx_L76:;
       goto __pyx_L75;
@@ -14770,7 +14982,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   }
   /*else*/ {
 
-    /* "cvcf.pyx":746
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":746
  *         else:
  *             # format v4.0 -- just check for nucleotides
  *             for allele in alt:             # <<<<<<<<<<<<<<
@@ -14778,57 +14990,57 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                     self.error(line,self.V40_BAD_ALLELE,allele)
  */
     if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-      __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+      __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
     } else {
-      __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 746; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
+      __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 746; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
     }
     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_12))) {
-        if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-        __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
-      } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-        if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-        __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
+      if (likely(PyList_CheckExact(__pyx_t_2))) {
+        if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+        __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+        if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+        __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
       } else {
-        __pyx_t_2 = PyIter_Next(__pyx_t_12);
-        if (!__pyx_t_2) {
+        __pyx_t_3 = PyIter_Next(__pyx_t_2);
+        if (!__pyx_t_3) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 746; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
         }
-        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_GOTREF(__pyx_t_3);
       }
       __Pyx_DECREF(__pyx_v_allele);
-      __pyx_v_allele = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_allele = __pyx_t_3;
+      __pyx_t_3 = 0;
 
-      /* "cvcf.pyx":747
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":747
  *             # format v4.0 -- just check for nucleotides
  *             for allele in alt:
  *                 if not alleleRegEx.match(allele):             # <<<<<<<<<<<<<<
  *                     self.error(line,self.V40_BAD_ALLELE,allele)
  * 
  */
-      __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__alleleRegEx); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_10 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__match); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
-      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+      __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__alleleRegEx); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_9 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__match); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
       __Pyx_INCREF(__pyx_v_allele);
-      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_allele);
+      PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_allele);
       __Pyx_GIVEREF(__pyx_v_allele);
-      __pyx_t_18 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyObject_Call(__pyx_t_9, __pyx_t_3, NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 747; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-      __pyx_t_5 = (!__pyx_t_15);
-      if (__pyx_t_5) {
+      __pyx_t_6 = (!__pyx_t_15);
+      if (__pyx_t_6) {
 
-        /* "cvcf.pyx":748
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":748
  *             for allele in alt:
  *                 if not alleleRegEx.match(allele):
  *                     self.error(line,self.V40_BAD_ALLELE,allele)             # <<<<<<<<<<<<<<
@@ -14837,33 +15049,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
         __pyx_t_18 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V40_BAD_ALLELE); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_10 = PyTuple_New(3); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+        __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V40_BAD_ALLELE); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
         __Pyx_INCREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_line);
+        PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_v_line);
         __Pyx_GIVEREF(__pyx_v_line);
-        PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_2);
-        __Pyx_GIVEREF(__pyx_t_2);
+        PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_3);
+        __Pyx_GIVEREF(__pyx_t_3);
         __Pyx_INCREF(__pyx_v_allele);
-        PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_v_allele);
+        PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_v_allele);
         __Pyx_GIVEREF(__pyx_v_allele);
-        __pyx_t_2 = 0;
-        __pyx_t_2 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_3 = 0;
+        __pyx_t_3 = PyObject_Call(__pyx_t_18, __pyx_t_9, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 748; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
         goto __pyx_L83;
       }
       __pyx_L83:;
     }
-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   }
   __pyx_L53:;
 
-  /* "cvcf.pyx":751
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":751
  * 
  *         # check for leading nucleotide in indel calls
  *         for allele in alt:             # <<<<<<<<<<<<<<
@@ -14871,31 +15083,31 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                 if len(allele) == 0: self.error(line,self.ZERO_LENGTH_ALLELE)
  */
   if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-    __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+    __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
   } else {
-    __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 751; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 751; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
   }
   for (;;) {
-    if (likely(PyList_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
-    } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
+    if (likely(PyList_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
+    } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
     } else {
-      __pyx_t_2 = PyIter_Next(__pyx_t_12);
-      if (!__pyx_t_2) {
+      __pyx_t_3 = PyIter_Next(__pyx_t_2);
+      if (!__pyx_t_3) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 751; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
       }
-      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_GOTREF(__pyx_t_3);
     }
     __Pyx_DECREF(__pyx_v_allele);
-    __pyx_v_allele = __pyx_t_2;
-    __pyx_t_2 = 0;
+    __pyx_v_allele = __pyx_t_3;
+    __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":752
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":752
  *         # check for leading nucleotide in indel calls
  *         for allele in alt:
  *             if len(allele) != len(ref):             # <<<<<<<<<<<<<<
@@ -14903,116 +15115,116 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                 if ref[0].upper() != allele[0].upper() and "N" not in (ref[0]+allele[0]).upper():
  */
     __pyx_t_17 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_3 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_5 = (__pyx_t_17 != __pyx_t_3);
-    if (__pyx_t_5) {
+    __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 752; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = (__pyx_t_17 != __pyx_t_4);
+    if (__pyx_t_6) {
 
-      /* "cvcf.pyx":753
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":753
  *         for allele in alt:
  *             if len(allele) != len(ref):
  *                 if len(allele) == 0: self.error(line,self.ZERO_LENGTH_ALLELE)             # <<<<<<<<<<<<<<
  *                 if ref[0].upper() != allele[0].upper() and "N" not in (ref[0]+allele[0]).upper():
  *                     self.error(line,self.MISSING_INDEL_ALLELE_REF_BASE)
  */
-      __pyx_t_3 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_5 = (__pyx_t_3 == 0);
-      if (__pyx_t_5) {
-        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ZERO_LENGTH_ALLELE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_4 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = (__pyx_t_4 == 0);
+      if (__pyx_t_6) {
+        __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ZERO_LENGTH_ALLELE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 753; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      /* "cvcf.pyx":754
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-      __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
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+      __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
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-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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         __pyx_t_18 = __Pyx_GetItemInt(__pyx_v_allele, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_18) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 754; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-        __Pyx_GOTREF(__pyx_t_10);
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         __Pyx_GOTREF(__pyx_t_18);
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-        __Pyx_GOTREF(__pyx_t_10);
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+        __Pyx_GOTREF(__pyx_t_9);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
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-        /* "cvcf.pyx":755
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":755
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-    /* "cvcf.pyx":759
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
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+    __pyx_t_2 = PySet_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
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+      __Pyx_GOTREF(__pyx_t_9);
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-            break;
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-          __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_3 = PyIter_Next(__pyx_t_9);
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       __Pyx_GOTREF(__pyx_t_12);
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       __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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+      if (unlikely(PySet_Add(__pyx_t_2, (PyObject*)__pyx_t_3))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+    __pyx_t_4 = PySet_Size(((PyObject *)__pyx_t_2)); 
+    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
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+    if (!__pyx_t_8) {
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_ref, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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-      __Pyx_GOTREF(__pyx_t_10);
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+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-      __Pyx_GOTREF(__pyx_t_10);
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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+      __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_alt, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
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+      __Pyx_GOTREF(__pyx_t_3);
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+      __Pyx_GOTREF(__pyx_t_9);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_15 = __pyx_t_5;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 759; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+      __pyx_t_15 = __pyx_t_6;
     } else {
-      __pyx_t_15 = __pyx_t_7;
+      __pyx_t_15 = __pyx_t_8;
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     if (__pyx_t_15) {
 
-      /* "cvcf.pyx":760
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":760
  *         for i in range(1,min(len(ref),min(map(len,alt)))):
  *             if len(set(allele[-1].upper() for allele in alt)) > 1 or ref[-1].upper() != alt[0][-1].upper():
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@@ -15207,61 +15409,61 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     }
     __pyx_L91:;
 
-    /* "cvcf.pyx":761
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":761
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  *         # left-align alleles, if a reference is available
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-    __pyx_t_10 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_10);
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-    __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+    __pyx_t_9 = PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
+    __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
     if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-      __pyx_t_3 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+      __pyx_t_4 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
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-      __pyx_t_3 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
+      __pyx_t_4 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
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     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_12))) {
-        if (__pyx_t_3 >= PyList_GET_SIZE(__pyx_t_12)) break;
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+      if (likely(PyList_CheckExact(__pyx_t_2))) {
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+        if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
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-        __pyx_t_9 = PyIter_Next(__pyx_t_12);
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+        __pyx_t_12 = PyIter_Next(__pyx_t_2);
+        if (!__pyx_t_12) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
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-        __Pyx_GOTREF(__pyx_t_9);
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       __Pyx_DECREF(__pyx_v_allele);
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+      __Pyx_GOTREF(__pyx_t_12);
+      if (unlikely(PyList_Append(__pyx_t_3, (PyObject*)__pyx_t_12))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 761; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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-    __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-    __pyx_t_12 = ((PyObject *)__pyx_t_2);
-    __Pyx_INCREF(__pyx_t_12);
-    __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_2 = ((PyObject *)__pyx_t_3);
+    __Pyx_INCREF(__pyx_t_2);
+    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_ref);
-    __pyx_v_ref = __pyx_t_10;
-    __pyx_t_10 = 0;
+    __pyx_v_ref = __pyx_t_9;
+    __pyx_t_9 = 0;
     __Pyx_DECREF(__pyx_v_alt);
-    __pyx_v_alt = __pyx_t_12;
-    __pyx_t_12 = 0;
+    __pyx_v_alt = __pyx_t_2;
+    __pyx_t_2 = 0;
   }
   __pyx_L90_break:;
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
 
-  /* "cvcf.pyx":764
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":764
  * 
  *         # left-align alleles, if a reference is available
  *         if self._leftalign and self._reference:             # <<<<<<<<<<<<<<
@@ -15275,15 +15477,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
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     __pyx_t_18 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_18);
-    __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 764; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-    __pyx_t_5 = __pyx_t_7;
+    __pyx_t_6 = __pyx_t_8;
   } else {
-    __pyx_t_5 = __pyx_t_15;
+    __pyx_t_6 = __pyx_t_15;
   }
-  if (__pyx_t_5) {
+  if (__pyx_t_6) {
 
-    /* "cvcf.pyx":765
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":765
  *         # left-align alleles, if a reference is available
  *         if self._leftalign and self._reference:
  *             while left < pos:             # <<<<<<<<<<<<<<
@@ -15293,11 +15495,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     while (1) {
       __pyx_t_18 = PyObject_RichCompare(__pyx_v_left, __pyx_v_pos, Py_LT); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 765; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 765; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_18); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 765; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-      if (!__pyx_t_5) break;
+      if (!__pyx_t_6) break;
 
-      /* "cvcf.pyx":766
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":766
  *         if self._leftalign and self._reference:
  *             while left < pos:
  *                 movable = True             # <<<<<<<<<<<<<<
@@ -15306,7 +15508,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
       __pyx_v_movable = 1;
 
-      /* "cvcf.pyx":767
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":767
  *             while left < pos:
  *                 movable = True
  *                 for allele in alt:             # <<<<<<<<<<<<<<
@@ -15314,84 +15516,84 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                         longest, shortest = allele, ref
  */
       if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-        __pyx_t_4 = 0; __pyx_t_18 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_18);
+        __pyx_t_5 = 0; __pyx_t_18 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_18);
       } else {
-        __pyx_t_4 = -1; __pyx_t_18 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 767; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = -1; __pyx_t_18 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 767; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
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       for (;;) {
         if (likely(PyList_CheckExact(__pyx_t_18))) {
-          if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_18)) break;
-          __pyx_t_12 = PyList_GET_ITEM(__pyx_t_18, __pyx_t_4); __Pyx_INCREF(__pyx_t_12); __pyx_t_4++;
+          if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_18)) break;
+          __pyx_t_2 = PyList_GET_ITEM(__pyx_t_18, __pyx_t_5); __Pyx_INCREF(__pyx_t_2); __pyx_t_5++;
         } else if (likely(PyTuple_CheckExact(__pyx_t_18))) {
-          if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_18)) break;
-          __pyx_t_12 = PyTuple_GET_ITEM(__pyx_t_18, __pyx_t_4); __Pyx_INCREF(__pyx_t_12); __pyx_t_4++;
+          if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_18)) break;
+          __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_18, __pyx_t_5); __Pyx_INCREF(__pyx_t_2); __pyx_t_5++;
         } else {
-          __pyx_t_12 = PyIter_Next(__pyx_t_18);
-          if (!__pyx_t_12) {
+          __pyx_t_2 = PyIter_Next(__pyx_t_18);
+          if (!__pyx_t_2) {
             if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 767; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             break;
           }
-          __Pyx_GOTREF(__pyx_t_12);
+          __Pyx_GOTREF(__pyx_t_2);
         }
         __Pyx_DECREF(__pyx_v_allele);
-        __pyx_v_allele = __pyx_t_12;
-        __pyx_t_12 = 0;
+        __pyx_v_allele = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":768
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":768
  *                 movable = True
  *                 for allele in alt:
  *                     if len(allele) > len(ref):             # <<<<<<<<<<<<<<
  *                         longest, shortest = allele, ref
  *                     else:
  */
-        __pyx_t_3 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_17 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 768; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_5 = (__pyx_t_3 > __pyx_t_17);
-        if (__pyx_t_5) {
+        __pyx_t_6 = (__pyx_t_4 > __pyx_t_17);
+        if (__pyx_t_6) {
 
-          /* "cvcf.pyx":769
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":769
  *                 for allele in alt:
  *                     if len(allele) > len(ref):
  *                         longest, shortest = allele, ref             # <<<<<<<<<<<<<<
  *                     else:
  *                         longest, shortest = ref, allele
  */
-          __pyx_t_12 = __pyx_v_allele;
-          __Pyx_INCREF(__pyx_t_12);
-          __pyx_t_10 = __pyx_v_ref;
-          __Pyx_INCREF(__pyx_t_10);
+          __pyx_t_2 = __pyx_v_allele;
+          __Pyx_INCREF(__pyx_t_2);
+          __pyx_t_9 = __pyx_v_ref;
+          __Pyx_INCREF(__pyx_t_9);
           __Pyx_DECREF(__pyx_v_longest);
-          __pyx_v_longest = __pyx_t_12;
-          __pyx_t_12 = 0;
+          __pyx_v_longest = __pyx_t_2;
+          __pyx_t_2 = 0;
           __Pyx_DECREF(__pyx_v_shortest);
-          __pyx_v_shortest = __pyx_t_10;
-          __pyx_t_10 = 0;
-          goto __pyx_L105;
+          __pyx_v_shortest = __pyx_t_9;
+          __pyx_t_9 = 0;
+          goto __pyx_L101;
         }
         /*else*/ {
 
-          /* "cvcf.pyx":771
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":771
  *                         longest, shortest = allele, ref
  *                     else:
  *                         longest, shortest = ref, allele             # <<<<<<<<<<<<<<
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():
  *                         movable = False
  */
-          __pyx_t_10 = __pyx_v_ref;
-          __Pyx_INCREF(__pyx_t_10);
-          __pyx_t_12 = __pyx_v_allele;
-          __Pyx_INCREF(__pyx_t_12);
+          __pyx_t_9 = __pyx_v_ref;
+          __Pyx_INCREF(__pyx_t_9);
+          __pyx_t_2 = __pyx_v_allele;
+          __Pyx_INCREF(__pyx_t_2);
           __Pyx_DECREF(__pyx_v_longest);
-          __pyx_v_longest = __pyx_t_10;
-          __pyx_t_10 = 0;
+          __pyx_v_longest = __pyx_t_9;
+          __pyx_t_9 = 0;
           __Pyx_DECREF(__pyx_v_shortest);
-          __pyx_v_shortest = __pyx_t_12;
-          __pyx_t_12 = 0;
+          __pyx_v_shortest = __pyx_t_2;
+          __pyx_t_2 = 0;
         }
-        __pyx_L105:;
+        __pyx_L101:;
 
-        /* "cvcf.pyx":772
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":772
  *                     else:
  *                         longest, shortest = ref, allele
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():             # <<<<<<<<<<<<<<
@@ -15399,36 +15601,36 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():
  */
         __pyx_t_17 = PyObject_Length(__pyx_v_longest); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_3 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_5 = (__pyx_t_17 == __pyx_t_3);
-        if (!__pyx_t_5) {
-          __pyx_t_3 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_12 = __Pyx_PySequence_GetSlice(__pyx_v_longest, 0, __pyx_t_3); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_12);
-          __pyx_t_10 = PyObject_GetAttr(__pyx_t_12, __pyx_n_s__upper); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-          __pyx_t_12 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_12);
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_GetAttr(__pyx_v_shortest, __pyx_n_s__upper); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __pyx_t_2 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = (__pyx_t_17 == __pyx_t_4);
+        if (!__pyx_t_6) {
+          __pyx_t_4 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_2 = PySequence_GetSlice(__pyx_v_longest, 0, __pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_2);
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyObject_RichCompare(__pyx_t_12, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+          __pyx_t_9 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__upper); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
           __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_7 = __pyx_t_15;
-        } else {
-          __pyx_t_7 = __pyx_t_5;
-        }
-        if (__pyx_t_7) {
+          __pyx_t_2 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __pyx_t_9 = PyObject_GetAttr(__pyx_v_shortest, __pyx_n_s__upper); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          __pyx_t_3 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __pyx_t_9 = PyObject_RichCompare(__pyx_t_2, __pyx_t_3, Py_NE); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_9); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 772; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __pyx_t_8 = __pyx_t_15;
+        } else {
+          __pyx_t_8 = __pyx_t_6;
+        }
+        if (__pyx_t_8) {
 
-          /* "cvcf.pyx":773
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":773
  *                         longest, shortest = ref, allele
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():
  *                         movable = False             # <<<<<<<<<<<<<<
@@ -15436,44 +15638,44 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                         movable = False
  */
           __pyx_v_movable = 0;
-          goto __pyx_L106;
+          goto __pyx_L102;
         }
-        __pyx_L106:;
+        __pyx_L102:;
 
-        /* "cvcf.pyx":774
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":774
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():
  *                         movable = False
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():             # <<<<<<<<<<<<<<
  *                         movable = False
  *                 if not movable:
  */
-        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_longest, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__upper); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_3 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_17 = (__pyx_t_3 - 1);
-        __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_longest, __pyx_t_17, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_longest, -1, sizeof(long), PyInt_FromLong); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __pyx_t_3 = PyObject_GetAttr(__pyx_t_9, __pyx_n_s__upper); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __pyx_t_9 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_9);
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_4 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_17 = (__pyx_t_4 - 1);
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_longest, __pyx_t_17, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_2 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__upper); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_12 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__upper); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_2 = PyObject_Call(__pyx_t_12, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyObject_RichCompare(__pyx_t_9, __pyx_t_3, Py_NE); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-        __pyx_t_12 = PyObject_RichCompare(__pyx_t_10, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+        __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 774; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-        if (__pyx_t_7) {
+        if (__pyx_t_8) {
 
-          /* "cvcf.pyx":775
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":775
  *                         movable = False
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():
  *                         movable = False             # <<<<<<<<<<<<<<
@@ -15481,48 +15683,48 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *                     break
  */
           __pyx_v_movable = 0;
-          goto __pyx_L107;
+          goto __pyx_L103;
         }
-        __pyx_L107:;
+        __pyx_L103:;
       }
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
 
-      /* "cvcf.pyx":776
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":776
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():
  *                         movable = False
  *                 if not movable:             # <<<<<<<<<<<<<<
  *                     break
  *                 ref = ref[:-1]
  */
-      __pyx_t_7 = (!__pyx_v_movable);
-      if (__pyx_t_7) {
+      __pyx_t_8 = (!__pyx_v_movable);
+      if (__pyx_t_8) {
 
-        /* "cvcf.pyx":777
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":777
  *                         movable = False
  *                 if not movable:
  *                     break             # <<<<<<<<<<<<<<
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]
  */
-        goto __pyx_L102_break;
-        goto __pyx_L108;
+        goto __pyx_L98_break;
+        goto __pyx_L104;
       }
-      __pyx_L108:;
+      __pyx_L104:;
 
-      /* "cvcf.pyx":778
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":778
  *                 if not movable:
  *                     break
  *                 ref = ref[:-1]             # <<<<<<<<<<<<<<
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
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-      __pyx_t_18 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 778; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 778; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
       __Pyx_DECREF(__pyx_v_ref);
       __pyx_v_ref = __pyx_t_18;
       __pyx_t_18 = 0;
 
-      /* "cvcf.pyx":779
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":779
  *                     break
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]             # <<<<<<<<<<<<<<
@@ -15532,41 +15734,41 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_18));
       if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-        __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+        __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
       } else {
-        __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
       }
       for (;;) {
-        if (likely(PyList_CheckExact(__pyx_t_12))) {
-          if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-          __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
-        } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-          if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-          __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
+        if (likely(PyList_CheckExact(__pyx_t_2))) {
+          if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+          __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
+        } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+          if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+          __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
         } else {
-          __pyx_t_2 = PyIter_Next(__pyx_t_12);
-          if (!__pyx_t_2) {
+          __pyx_t_3 = PyIter_Next(__pyx_t_2);
+          if (!__pyx_t_3) {
             if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             break;
           }
-          __Pyx_GOTREF(__pyx_t_2);
+          __Pyx_GOTREF(__pyx_t_3);
         }
         __Pyx_DECREF(__pyx_v_allele);
-        __pyx_v_allele = __pyx_t_2;
-        __pyx_t_2 = 0;
-        __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_2))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_v_allele = __pyx_t_3;
+        __pyx_t_3 = 0;
+        __pyx_t_3 = PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_3))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 779; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __Pyx_INCREF(((PyObject *)__pyx_t_18));
       __Pyx_DECREF(__pyx_v_alt);
       __pyx_v_alt = ((PyObject *)__pyx_t_18);
       __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
 
-      /* "cvcf.pyx":780
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":780
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:             # <<<<<<<<<<<<<<
@@ -15576,82 +15778,82 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_18));
       if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-        __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+        __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
       } else {
-        __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
       }
       for (;;) {
-        if (likely(PyList_CheckExact(__pyx_t_12))) {
-          if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-          __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
-        } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-          if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-          __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
+        if (likely(PyList_CheckExact(__pyx_t_2))) {
+          if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+          __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
+        } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+          if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+          __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
         } else {
-          __pyx_t_2 = PyIter_Next(__pyx_t_12);
-          if (!__pyx_t_2) {
+          __pyx_t_3 = PyIter_Next(__pyx_t_2);
+          if (!__pyx_t_3) {
             if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
             break;
           }
-          __Pyx_GOTREF(__pyx_t_2);
+          __Pyx_GOTREF(__pyx_t_3);
         }
         __Pyx_DECREF(__pyx_v_allele);
-        __pyx_v_allele = __pyx_t_2;
-        __pyx_t_2 = 0;
+        __pyx_v_allele = __pyx_t_3;
+        __pyx_t_3 = 0;
         __pyx_t_17 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_17); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_2))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_3 = PyInt_FromSsize_t(__pyx_t_17); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
+        if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_3))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       }
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      __pyx_t_12 = PyTuple_New(1); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(((PyObject *)__pyx_t_18));
-      PyTuple_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_t_18));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_t_18));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_18));
       __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
-      __pyx_t_18 = PyObject_Call(__pyx_builtin_min, ((PyObject *)__pyx_t_12), NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyObject_Call(__pyx_builtin_min, __pyx_t_2, NULL); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_18);
-      __Pyx_DECREF(((PyObject *)__pyx_t_12)); __pyx_t_12 = 0;
-      __pyx_t_12 = PyObject_RichCompare(__pyx_t_18, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyObject_RichCompare(__pyx_t_18, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-      __pyx_t_7 = __Pyx_PyObject_IsTrue(__pyx_t_12); if (unlikely(__pyx_t_7 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-      if (!__pyx_t_7) {
-        __pyx_t_4 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_5 = (__pyx_t_4 == 0);
-        __pyx_t_15 = __pyx_t_5;
+      __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_8 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      if (!__pyx_t_8) {
+        __pyx_t_5 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_5 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 780; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_6 = (__pyx_t_5 == 0);
+        __pyx_t_15 = __pyx_t_6;
       } else {
-        __pyx_t_15 = __pyx_t_7;
+        __pyx_t_15 = __pyx_t_8;
       }
       if (__pyx_t_15) {
 
-        /* "cvcf.pyx":781
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":781
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  *                     ref = faref_leftflank[pos-left-1] + ref             # <<<<<<<<<<<<<<
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]
  *                     pos -= 1
  */
-        __pyx_t_12 = PyNumber_Subtract(__pyx_v_pos, __pyx_v_left); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
-        __pyx_t_18 = PyNumber_Subtract(__pyx_t_12, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PyNumber_Subtract(__pyx_v_pos, __pyx_v_left); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_18 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
-        __pyx_t_12 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_18); if (!__pyx_t_12) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_12);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_2 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_18); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-        __pyx_t_18 = PyNumber_Add(__pyx_t_12, __pyx_v_ref); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_18 = PyNumber_Add(__pyx_t_2, __pyx_v_ref); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 781; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_18);
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_v_ref);
         __pyx_v_ref = __pyx_t_18;
         __pyx_t_18 = 0;
 
-        /* "cvcf.pyx":782
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":782
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  *                     ref = faref_leftflank[pos-left-1] + ref
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]             # <<<<<<<<<<<<<<
@@ -15661,50 +15863,50 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
         __pyx_t_18 = PyList_New(0); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(((PyObject *)__pyx_t_18));
         if (PyList_CheckExact(__pyx_v_alt) || PyTuple_CheckExact(__pyx_v_alt)) {
-          __pyx_t_4 = 0; __pyx_t_12 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_12);
+          __pyx_t_5 = 0; __pyx_t_2 = __pyx_v_alt; __Pyx_INCREF(__pyx_t_2);
         } else {
-          __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_12);
+          __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_alt); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
         }
         for (;;) {
-          if (likely(PyList_CheckExact(__pyx_t_12))) {
-            if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-            __pyx_t_2 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
-          } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-            if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-            __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_2); __pyx_t_4++;
+          if (likely(PyList_CheckExact(__pyx_t_2))) {
+            if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+            __pyx_t_3 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
+          } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+            if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+            __pyx_t_3 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_3); __pyx_t_5++;
           } else {
-            __pyx_t_2 = PyIter_Next(__pyx_t_12);
-            if (!__pyx_t_2) {
+            __pyx_t_3 = PyIter_Next(__pyx_t_2);
+            if (!__pyx_t_3) {
               if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
               break;
             }
-            __Pyx_GOTREF(__pyx_t_2);
+            __Pyx_GOTREF(__pyx_t_3);
           }
           __Pyx_DECREF(__pyx_v_allele);
-          __pyx_v_allele = __pyx_t_2;
-          __pyx_t_2 = 0;
-          __pyx_t_2 = PyNumber_Subtract(__pyx_v_pos, __pyx_v_left); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_2);
-          __pyx_t_10 = PyNumber_Subtract(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          __pyx_t_2 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_10); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_2);
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyNumber_Add(__pyx_t_2, __pyx_v_allele); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
-          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_10))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+          __pyx_v_allele = __pyx_t_3;
+          __pyx_t_3 = 0;
+          __pyx_t_3 = PyNumber_Subtract(__pyx_v_pos, __pyx_v_left); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __pyx_t_9 = PyNumber_Subtract(__pyx_t_3, __pyx_int_1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __pyx_t_3 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_9); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
+          __pyx_t_9 = PyNumber_Add(__pyx_t_3, __pyx_v_allele); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_9);
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          if (unlikely(PyList_Append(__pyx_t_18, (PyObject*)__pyx_t_9))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 782; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
         }
-        __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_INCREF(((PyObject *)__pyx_t_18));
         __Pyx_DECREF(__pyx_v_alt);
         __pyx_v_alt = ((PyObject *)__pyx_t_18);
         __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
 
-        /* "cvcf.pyx":783
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":783
  *                     ref = faref_leftflank[pos-left-1] + ref
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]
  *                     pos -= 1             # <<<<<<<<<<<<<<
@@ -15716,16 +15918,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
         __Pyx_DECREF(__pyx_v_pos);
         __pyx_v_pos = __pyx_t_18;
         __pyx_t_18 = 0;
-        goto __pyx_L111;
+        goto __pyx_L107;
       }
-      __pyx_L111:;
+      __pyx_L107:;
     }
-    __pyx_L102_break:;
-    goto __pyx_L100;
+    __pyx_L98_break:;
+    goto __pyx_L96;
   }
-  __pyx_L100:;
+  __pyx_L96:;
 
-  /* "cvcf.pyx":786
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":786
  * 
  *         # parse sample columns
  *         samples = []             # <<<<<<<<<<<<<<
@@ -15738,31 +15940,31 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
   __pyx_v_samples = __pyx_t_18;
   __pyx_t_18 = 0;
 
-  /* "cvcf.pyx":787
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":787
  *         # parse sample columns
  *         samples = []
  *         for sample in cols[9:]:             # <<<<<<<<<<<<<<
  *             dict = {}
  *             values = sample.split(':')
  */
-  __pyx_t_18 = __Pyx_PySequence_GetSlice(__pyx_v_cols, 9, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_18 = PySequence_GetSlice(__pyx_v_cols, 9, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_18);
   if (PyList_CheckExact(__pyx_t_18) || PyTuple_CheckExact(__pyx_t_18)) {
-    __pyx_t_4 = 0; __pyx_t_12 = __pyx_t_18; __Pyx_INCREF(__pyx_t_12);
+    __pyx_t_5 = 0; __pyx_t_2 = __pyx_t_18; __Pyx_INCREF(__pyx_t_2);
   } else {
-    __pyx_t_4 = -1; __pyx_t_12 = PyObject_GetIter(__pyx_t_18); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_12);
+    __pyx_t_5 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_18); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
   }
   __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
   for (;;) {
-    if (likely(PyList_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyList_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_18 = PyList_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_18); __pyx_t_4++;
-    } else if (likely(PyTuple_CheckExact(__pyx_t_12))) {
-      if (__pyx_t_4 >= PyTuple_GET_SIZE(__pyx_t_12)) break;
-      __pyx_t_18 = PyTuple_GET_ITEM(__pyx_t_12, __pyx_t_4); __Pyx_INCREF(__pyx_t_18); __pyx_t_4++;
+    if (likely(PyList_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyList_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_18 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_18); __pyx_t_5++;
+    } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_5 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_18 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_5); __Pyx_INCREF(__pyx_t_18); __pyx_t_5++;
     } else {
-      __pyx_t_18 = PyIter_Next(__pyx_t_12);
+      __pyx_t_18 = PyIter_Next(__pyx_t_2);
       if (!__pyx_t_18) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 787; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
@@ -15773,7 +15975,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __pyx_v_sample = __pyx_t_18;
     __pyx_t_18 = 0;
 
-    /* "cvcf.pyx":788
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":788
  *         samples = []
  *         for sample in cols[9:]:
  *             dict = {}             # <<<<<<<<<<<<<<
@@ -15786,7 +15988,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     __pyx_v_dict = __pyx_t_18;
     __pyx_t_18 = 0;
 
-    /* "cvcf.pyx":789
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":789
  *         for sample in cols[9:]:
  *             dict = {}
  *             values = sample.split(':')             # <<<<<<<<<<<<<<
@@ -15795,14 +15997,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  */
     __pyx_t_18 = PyObject_GetAttr(__pyx_v_sample, __pyx_n_s__split); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_18);
-    __pyx_t_10 = PyObject_Call(__pyx_t_18, ((PyObject *)__pyx_k_tuple_114), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_10);
+    __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_9);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_3));
+    PyTuple_SET_ITEM(__pyx_t_9, 0, ((PyObject *)__pyx_kp_s_3));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_3));
+    __pyx_t_3 = PyObject_Call(__pyx_t_18, __pyx_t_9, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
+    __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
     __Pyx_DECREF(__pyx_v_values);
-    __pyx_v_values = __pyx_t_10;
-    __pyx_t_10 = 0;
+    __pyx_v_values = __pyx_t_3;
+    __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":790
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":790
  *             dict = {}
  *             values = sample.split(':')
  *             if len(values) > len(format):             # <<<<<<<<<<<<<<
@@ -15810,105 +16018,105 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
  *             for idx in range(len(format)):
  */
     __pyx_t_17 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_17 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 790; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_3 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 790; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __pyx_t_15 = (__pyx_t_17 > __pyx_t_3);
+    __pyx_t_4 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 790; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_15 = (__pyx_t_17 > __pyx_t_4);
     if (__pyx_t_15) {
 
-      /* "cvcf.pyx":791
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":791
  *             values = sample.split(':')
  *             if len(values) > len(format):
  *                 self.error(line,self.BAD_NUMBER_OF_VALUES,"(found %s values in element %s; expected %s)" % (len(values),sample,len(format)))             # <<<<<<<<<<<<<<
  *             for idx in range(len(format)):
  *                 expected = self.get_expected(format[idx], self._format, alt)
  */
-      __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_18 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_18); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_18);
-      __pyx_t_3 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_3 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __pyx_t_9 = PyInt_FromSsize_t(__pyx_t_3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_9); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_4 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_18 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_18);
+      __pyx_t_4 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_12 = PyInt_FromSsize_t(__pyx_t_4); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_12);
       __pyx_t_20 = PyTuple_New(3); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_20));
-      PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_t_2);
-      __Pyx_GIVEREF(__pyx_t_2);
+      __Pyx_GOTREF(__pyx_t_20);
+      PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_t_18);
+      __Pyx_GIVEREF(__pyx_t_18);
       __Pyx_INCREF(__pyx_v_sample);
       PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_v_sample);
       __Pyx_GIVEREF(__pyx_v_sample);
-      PyTuple_SET_ITEM(__pyx_t_20, 2, __pyx_t_9);
-      __Pyx_GIVEREF(__pyx_t_9);
-      __pyx_t_2 = 0;
-      __pyx_t_9 = 0;
-      __pyx_t_9 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_19), ((PyObject *)__pyx_t_20)); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-      __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
+      PyTuple_SET_ITEM(__pyx_t_20, 2, __pyx_t_12);
+      __Pyx_GIVEREF(__pyx_t_12);
+      __pyx_t_18 = 0;
+      __pyx_t_12 = 0;
+      __pyx_t_12 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_10), __pyx_t_20); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(((PyObject *)__pyx_t_12));
+      __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
       __pyx_t_20 = PyTuple_New(3); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_20));
+      __Pyx_GOTREF(__pyx_t_20);
       __Pyx_INCREF(__pyx_v_line);
       PyTuple_SET_ITEM(__pyx_t_20, 0, __pyx_v_line);
       __Pyx_GIVEREF(__pyx_v_line);
-      PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_t_18);
-      __Pyx_GIVEREF(__pyx_t_18);
-      PyTuple_SET_ITEM(__pyx_t_20, 2, ((PyObject *)__pyx_t_9));
-      __Pyx_GIVEREF(((PyObject *)__pyx_t_9));
-      __pyx_t_18 = 0;
+      PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_t_9);
+      __Pyx_GIVEREF(__pyx_t_9);
+      PyTuple_SET_ITEM(__pyx_t_20, 2, ((PyObject *)__pyx_t_12));
+      __Pyx_GIVEREF(((PyObject *)__pyx_t_12));
       __pyx_t_9 = 0;
-      __pyx_t_9 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_20), NULL); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_9);
-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
-      __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      goto __pyx_L118;
+      __pyx_t_12 = 0;
+      __pyx_t_12 = PyObject_Call(__pyx_t_3, __pyx_t_20, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 791; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_12);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+      goto __pyx_L114;
     }
-    __pyx_L118:;
+    __pyx_L114:;
 
-    /* "cvcf.pyx":792
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":792
  *             if len(values) > len(format):
  *                 self.error(line,self.BAD_NUMBER_OF_VALUES,"(found %s values in element %s; expected %s)" % (len(values),sample,len(format)))
  *             for idx in range(len(format)):             # <<<<<<<<<<<<<<
  *                 expected = self.get_expected(format[idx], self._format, alt)
  *                 if idx < len(values): value = values[idx]
  */
-    __pyx_t_3 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_3 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    for (__pyx_t_17 = 0; __pyx_t_17 < __pyx_t_3; __pyx_t_17+=1) {
+    __pyx_t_4 = PyObject_Length(__pyx_v_format); if (unlikely(__pyx_t_4 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 792; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    for (__pyx_t_17 = 0; __pyx_t_17 < __pyx_t_4; __pyx_t_17+=1) {
       __pyx_v_idx = __pyx_t_17;
 
-      /* "cvcf.pyx":793
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":793
  *                 self.error(line,self.BAD_NUMBER_OF_VALUES,"(found %s values in element %s; expected %s)" % (len(values),sample,len(format)))
  *             for idx in range(len(format)):
  *                 expected = self.get_expected(format[idx], self._format, alt)             # <<<<<<<<<<<<<<
  *                 if idx < len(values): value = values[idx]
  *                 else:
  */
-      __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__get_expected); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_9);
+      __pyx_t_12 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__get_expected); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_12);
       __pyx_t_20 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_20) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_20);
-      __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_18 = PyTuple_New(3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_18));
-      PyTuple_SET_ITEM(__pyx_t_18, 0, __pyx_t_20);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __pyx_t_9 = PyTuple_New(3); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_9);
+      PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_20);
       __Pyx_GIVEREF(__pyx_t_20);
-      PyTuple_SET_ITEM(__pyx_t_18, 1, __pyx_t_10);
-      __Pyx_GIVEREF(__pyx_t_10);
+      PyTuple_SET_ITEM(__pyx_t_9, 1, __pyx_t_3);
+      __Pyx_GIVEREF(__pyx_t_3);
       __Pyx_INCREF(__pyx_v_alt);
-      PyTuple_SET_ITEM(__pyx_t_18, 2, __pyx_v_alt);
+      PyTuple_SET_ITEM(__pyx_t_9, 2, __pyx_v_alt);
       __Pyx_GIVEREF(__pyx_v_alt);
       __pyx_t_20 = 0;
-      __pyx_t_10 = 0;
-      __pyx_t_10 = PyObject_Call(__pyx_t_9, ((PyObject *)__pyx_t_18), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_3 = 0;
+      __pyx_t_3 = PyObject_Call(__pyx_t_12, __pyx_t_9, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 793; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
       __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
       __Pyx_DECREF(__pyx_v_expected);
-      __pyx_v_expected = __pyx_t_10;
-      __pyx_t_10 = 0;
+      __pyx_v_expected = __pyx_t_3;
+      __pyx_t_3 = 0;
 
-      /* "cvcf.pyx":794
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":794
  *             for idx in range(len(format)):
  *                 expected = self.get_expected(format[idx], self._format, alt)
  *                 if idx < len(values): value = values[idx]             # <<<<<<<<<<<<<<
@@ -15918,287 +16126,287 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
       __pyx_t_21 = PyObject_Length(__pyx_v_values); if (unlikely(__pyx_t_21 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 794; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_15 = (__pyx_v_idx < __pyx_t_21);
       if (__pyx_t_15) {
-        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_values, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 794; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
+        __pyx_t_3 = __Pyx_GetItemInt(__pyx_v_values, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 794; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_3);
         __Pyx_DECREF(__pyx_v_value);
-        __pyx_v_value = __pyx_t_10;
-        __pyx_t_10 = 0;
-        goto __pyx_L121;
+        __pyx_v_value = __pyx_t_3;
+        __pyx_t_3 = 0;
+        goto __pyx_L117;
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       /*else*/ {
 
-        /* "cvcf.pyx":796
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":796
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  *                 else:
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-        __Pyx_GOTREF(__pyx_t_10);
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-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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+        __Pyx_GOTREF(__pyx_t_3);
+        __pyx_t_15 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_15 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 796; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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-          __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
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-          /* "cvcf.pyx":797
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  *                     else: value = ",".join(["."]*expected)             # <<<<<<<<<<<<<<
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-          __Pyx_GOTREF(__pyx_t_10);
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-          __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
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-          __Pyx_GOTREF(__pyx_t_9);
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-          __Pyx_GOTREF(((PyObject *)__pyx_t_18));
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+          __Pyx_GOTREF(__pyx_t_3);
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+          __Pyx_GOTREF(((PyObject *)__pyx_t_9));
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+          __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
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+          __Pyx_GOTREF(__pyx_t_12);
+          __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+          __pyx_t_9 = PyTuple_New(1); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __Pyx_DECREF(((PyObject *)__pyx_t_18)); __pyx_t_18 = 0;
+          PyTuple_SET_ITEM(__pyx_t_9, 0, __pyx_t_12);
+          __Pyx_GIVEREF(__pyx_t_12);
+          __pyx_t_12 = 0;
+          __pyx_t_12 = PyObject_Call(__pyx_t_3, __pyx_t_9, NULL); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 797; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_12);
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
           __Pyx_DECREF(__pyx_v_value);
-          __pyx_v_value = __pyx_t_9;
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-      /* "cvcf.pyx":798
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":798
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-      __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_formatdata); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+      __pyx_t_9 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_9);
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-      __Pyx_GOTREF(__pyx_t_10);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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       __pyx_t_20 = PyTuple_New(4); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-      __Pyx_GIVEREF(__pyx_t_18);
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       __Pyx_INCREF(__pyx_v_value);
       PyTuple_SET_ITEM(__pyx_t_20, 1, __pyx_v_value);
       __Pyx_GIVEREF(__pyx_v_value);
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-      __Pyx_GIVEREF(__pyx_t_10);
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       __Pyx_INCREF(__pyx_v_line);
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-      __Pyx_GOTREF(__pyx_t_10);
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-      __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
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+      __pyx_t_3 = PyObject_Call(__pyx_t_12, __pyx_t_20, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
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       __pyx_t_20 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_20) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_20);
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+      if (PyDict_SetItem(((PyObject *)__pyx_v_dict), __pyx_t_20, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 798; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
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-      /* "cvcf.pyx":799
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":799
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-      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
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+      __Pyx_GOTREF(__pyx_t_3);
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       if (__pyx_t_15) {
-        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 799; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+        __Pyx_GOTREF(__pyx_t_3);
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         __Pyx_GOTREF(__pyx_t_20);
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         __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
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-        /* "cvcf.pyx":800
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":800
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  *                     self.error(line,self.BAD_NUMBER_OF_PARAMETERS,             # <<<<<<<<<<<<<<
  *                                "id=%s, expected %s parameters, got %s" % (format[idx],expected,dict[format[idx]]))
  *                     if len(dict[format[idx]] ) < expected: dict[format[idx]] += [dict[format[idx]][-1]]*(expected-len(dict[format[idx]]))
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-        /* "cvcf.pyx":801
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":801
  *                 if expected != -1 and len(dict[format[idx]]) != expected:
  *                     self.error(line,self.BAD_NUMBER_OF_PARAMETERS,
  *                                "id=%s, expected %s parameters, got %s" % (format[idx],expected,dict[format[idx]]))             # <<<<<<<<<<<<<<
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  *                     dict[format[idx]] = dict[format[idx]][:expected]
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-        /* "cvcf.pyx":802
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":802
  *                     self.error(line,self.BAD_NUMBER_OF_PARAMETERS,
  *                                "id=%s, expected %s parameters, got %s" % (format[idx],expected,dict[format[idx]]))
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  *                     dict[format[idx]] = dict[format[idx]][:expected]
  *             samples.append( dict )
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+          __pyx_t_3 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_dict), __pyx_t_18); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
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+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+          __Pyx_GOTREF(__pyx_t_3);
+          __pyx_t_18 = PyNumber_Subtract(__pyx_v_expected, __pyx_t_3); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_18);
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+          __pyx_t_3 = PyNumber_Multiply(((PyObject *)__pyx_t_9), __pyx_t_18); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_3);
+          __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
+          __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
+          __pyx_t_18 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_18) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_18);
+          __pyx_t_9 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_dict), __pyx_t_18); if (!__pyx_t_9) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_9);
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-          __Pyx_GOTREF(__pyx_t_10);
+          __pyx_t_20 = PyNumber_InPlaceAdd(__pyx_t_9, __pyx_t_3); if (unlikely(!__pyx_t_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_20);
+          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
           __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
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-          __Pyx_GOTREF(__pyx_t_9);
-          __Pyx_DECREF(((PyObject *)__pyx_t_20)); __pyx_t_20 = 0;
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __pyx_t_10 = PyNumber_InPlaceAdd(__pyx_t_18, __pyx_t_9); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_10);
+          if (PyDict_SetItem(((PyObject *)__pyx_v_dict), __pyx_t_18, __pyx_t_20) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
           __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
-          __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-          if (PyDict_SetItem(((PyObject *)__pyx_v_dict), __pyx_t_2, __pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 802; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-          goto __pyx_L124;
+          goto __pyx_L120;
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-        __pyx_L124:;
+        __pyx_L120:;
 
-        /* "cvcf.pyx":803
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":803
  *                                "id=%s, expected %s parameters, got %s" % (format[idx],expected,dict[format[idx]]))
  *                     if len(dict[format[idx]] ) < expected: dict[format[idx]] += [dict[format[idx]][-1]]*(expected-len(dict[format[idx]]))
  *                     dict[format[idx]] = dict[format[idx]][:expected]             # <<<<<<<<<<<<<<
  *             samples.append( dict )
  * 
  */
-        __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __pyx_t_10 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_dict), __pyx_t_2); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_18 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_18) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_18);
+        __pyx_t_20 = __Pyx_PyDict_GetItem(((PyObject *)__pyx_v_dict), __pyx_t_18); if (!__pyx_t_20) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_20);
+        __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
         __pyx_t_21 = __Pyx_PyIndex_AsSsize_t(__pyx_v_expected); if (unlikely((__pyx_t_21 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_t_10, 0, __pyx_t_21); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_10);
-        if (PyDict_SetItem(((PyObject *)__pyx_v_dict), __pyx_t_10, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-        goto __pyx_L123;
+        __pyx_t_18 = PySequence_GetSlice(__pyx_t_20, 0, __pyx_t_21); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_18);
+        __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
+        __pyx_t_20 = __Pyx_GetItemInt(__pyx_v_format, __pyx_v_idx, sizeof(Py_ssize_t), PyInt_FromSsize_t); if (!__pyx_t_20) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_20);
+        if (PyDict_SetItem(((PyObject *)__pyx_v_dict), __pyx_t_20, __pyx_t_18) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 803; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_DECREF(__pyx_t_20); __pyx_t_20 = 0;
+        __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
+        goto __pyx_L119;
       }
-      __pyx_L123:;
+      __pyx_L119:;
     }
 
-    /* "cvcf.pyx":804
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":804
  *                     if len(dict[format[idx]] ) < expected: dict[format[idx]] += [dict[format[idx]][-1]]*(expected-len(dict[format[idx]]))
  *                     dict[format[idx]] = dict[format[idx]][:expected]
  *             samples.append( dict )             # <<<<<<<<<<<<<<
@@ -16208,171 +16416,171 @@ static PyObject *__pyx_pf_4cvcf_3VCF_16parse_data(PyObject *__pyx_self, PyObject
     if (unlikely(__pyx_v_samples == Py_None)) {
       PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
     }
-    __pyx_t_16 = PyList_Append(__pyx_v_samples, ((PyObject *)__pyx_v_dict)); if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_16 = PyList_Append(((PyObject *)__pyx_v_samples), ((PyObject *)__pyx_v_dict)); if (unlikely(__pyx_t_16 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 804; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __Pyx_DECREF(__pyx_t_12); __pyx_t_12 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":807
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":807
  * 
  *         # done
  *         d = {'chrom':chrom,             # <<<<<<<<<<<<<<
  *              'pos':pos,      # return 0-based position
  *              'id':id,
  */
-  __pyx_t_12 = PyDict_New(); if (unlikely(!__pyx_t_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_12));
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__chrom), __pyx_v_chrom) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__chrom), __pyx_v_chrom) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":808
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":808
  *         # done
  *         d = {'chrom':chrom,
  *              'pos':pos,      # return 0-based position             # <<<<<<<<<<<<<<
  *              'id':id,
  *              'ref':ref,
  */
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__pos), __pyx_v_pos) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__pos), __pyx_v_pos) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":809
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":809
  *         d = {'chrom':chrom,
  *              'pos':pos,      # return 0-based position
  *              'id':id,             # <<<<<<<<<<<<<<
  *              'ref':ref,
  *              'alt':alt,
  */
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__id), __pyx_v_id) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__id), __pyx_v_id) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":810
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":810
  *              'pos':pos,      # return 0-based position
  *              'id':id,
  *              'ref':ref,             # <<<<<<<<<<<<<<
  *              'alt':alt,
  *              'qual':qual,
  */
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__ref), __pyx_v_ref) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__ref), __pyx_v_ref) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":811
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":811
  *              'id':id,
  *              'ref':ref,
  *              'alt':alt,             # <<<<<<<<<<<<<<
  *              'qual':qual,
  *              'filter':filter,
  */
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__alt), __pyx_v_alt) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__alt), __pyx_v_alt) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":812
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":812
  *              'ref':ref,
  *              'alt':alt,
  *              'qual':qual,             # <<<<<<<<<<<<<<
  *              'filter':filter,
  *              'info':info,
  */
-  __pyx_t_2 = PyFloat_FromDouble(__pyx_v_qual); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__qual), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_18 = PyFloat_FromDouble(__pyx_v_qual); if (unlikely(!__pyx_t_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 812; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_18);
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__qual), __pyx_t_18) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_18); __pyx_t_18 = 0;
 
-  /* "cvcf.pyx":813
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":813
  *              'alt':alt,
  *              'qual':qual,
  *              'filter':filter,             # <<<<<<<<<<<<<<
  *              'info':info,
  *              'format':format}
  */
-  if (PyDict_SetItem(__pyx_t_12, ((PyObject *)__pyx_n_s__filter), __pyx_v_filter) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_2, ((PyObject *)__pyx_n_s__filter), __pyx_v_filter) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 807; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":814
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":814
  *              'qual':qual,
  *              'filter':filter,
  *              'info':info,             # <<<<<<<<<<<<<<
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  *         for key,value in zip(self._samples,samples):
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-  /* "cvcf.pyx":815
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":815
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  *              'info':info,
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  *         for key,value in zip(self._samples,samples):
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+  __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":816
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":816
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+  __Pyx_GOTREF(__pyx_t_2);
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-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-  /* "cvcf.pyx":819
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":819
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-  __pyx_v_output = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
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     __pyx_t_2 = 0;
 
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+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_68), __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_2));
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_t_2));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_Raise(__pyx_t_2, 0, 0);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       {__pyx_filename = __pyx_f[0]; __pyx_lineno = 825; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
@@ -16661,7 +16870,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   }
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":826
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":826
  *         for k in required:
  *             if k not in data: raise ValueError("Required key %s not found in data" % str(k))
  *         if data['alt'] == []: alt = "."             # <<<<<<<<<<<<<<
@@ -16679,14 +16888,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 826; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_5) {
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
     __Pyx_DECREF(__pyx_v_alt);
-    __pyx_v_alt = ((PyObject *)__pyx_kp_s_9);
+    __pyx_v_alt = ((PyObject *)__pyx_kp_s_6);
     goto __pyx_L9;
   }
   /*else*/ {
 
-    /* "cvcf.pyx":827
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":827
  *             if k not in data: raise ValueError("Required key %s not found in data" % str(k))
  *         if data['alt'] == []: alt = "."
  *         else: alt = ",".join(data['alt'])             # <<<<<<<<<<<<<<
@@ -16698,21 +16907,21 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     __pyx_t_2 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__alt)); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 827; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_alt);
     __pyx_v_alt = __pyx_t_2;
     __pyx_t_2 = 0;
   }
   __pyx_L9:;
 
-  /* "cvcf.pyx":828
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":828
  *         if data['alt'] == []: alt = "."
  *         else: alt = ",".join(data['alt'])
  *         if data['filter'] == None: filter = "."             # <<<<<<<<<<<<<<
@@ -16727,13 +16936,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 828; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
     __Pyx_DECREF(__pyx_v_filter);
-    __pyx_v_filter = ((PyObject *)__pyx_kp_s_9);
+    __pyx_v_filter = ((PyObject *)__pyx_kp_s_6);
     goto __pyx_L10;
   }
 
-  /* "cvcf.pyx":829
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":829
  *         else: alt = ",".join(data['alt'])
  *         if data['filter'] == None: filter = "."
  *         elif data['filter'] == []:             # <<<<<<<<<<<<<<
@@ -16752,7 +16961,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_5) {
 
-    /* "cvcf.pyx":830
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":830
  *         if data['filter'] == None: filter = "."
  *         elif data['filter'] == []:
  *             if self._version == 33: filter = "0"             # <<<<<<<<<<<<<<
@@ -16774,7 +16983,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     }
     /*else*/ {
 
-      /* "cvcf.pyx":831
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":831
  *         elif data['filter'] == []:
  *             if self._version == 33: filter = "0"
  *             else: filter = "PASS"             # <<<<<<<<<<<<<<
@@ -16790,33 +16999,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   }
   /*else*/ {
 
-    /* "cvcf.pyx":832
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":832
  *             if self._version == 33: filter = "0"
  *             else: filter = "PASS"
  *         else: filter = ';'.join(data['filter'])             # <<<<<<<<<<<<<<
  *         if data['qual'] == -1: qual = "."
  *         else: qual = str(data['qual'])
  */
-    __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_11), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_7), __pyx_n_s__join); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_1 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__filter)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1);
     __Pyx_GIVEREF(__pyx_t_1);
     __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 832; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_v_filter);
     __pyx_v_filter = __pyx_t_1;
     __pyx_t_1 = 0;
   }
   __pyx_L10:;
 
-  /* "cvcf.pyx":833
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":833
  *             else: filter = "PASS"
  *         else: filter = ';'.join(data['filter'])
  *         if data['qual'] == -1: qual = "."             # <<<<<<<<<<<<<<
@@ -16831,14 +17040,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 833; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
   if (__pyx_t_5) {
-    __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
     __Pyx_DECREF(__pyx_v_qual);
-    __pyx_v_qual = ((PyObject *)__pyx_kp_s_9);
+    __pyx_v_qual = ((PyObject *)__pyx_kp_s_6);
     goto __pyx_L12;
   }
   /*else*/ {
 
-    /* "cvcf.pyx":834
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":834
  *         else: filter = ';'.join(data['filter'])
  *         if data['qual'] == -1: qual = "."
  *         else: qual = str(data['qual'])             # <<<<<<<<<<<<<<
@@ -16848,20 +17057,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     __pyx_t_3 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__qual)); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
     __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_3);
     __Pyx_GIVEREF(__pyx_t_3);
     __pyx_t_3 = 0;
-    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 834; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_qual);
     __pyx_v_qual = __pyx_t_3;
     __pyx_t_3 = 0;
   }
   __pyx_L12:;
 
-  /* "cvcf.pyx":836
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":836
  *         else: qual = str(data['qual'])
  * 
  *         output = [data['chrom'],             # <<<<<<<<<<<<<<
@@ -16871,7 +17080,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_3 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__chrom)); if (!__pyx_t_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 836; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
 
-  /* "cvcf.pyx":837
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":837
  * 
  *         output = [data['chrom'],
  *                   str(data['pos']+1),   # change to 1-based position             # <<<<<<<<<<<<<<
@@ -16884,15 +17093,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 837; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":838
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":838
  *         output = [data['chrom'],
  *                   str(data['pos']+1),   # change to 1-based position
  *                   data['id'],             # <<<<<<<<<<<<<<
@@ -16902,7 +17111,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_1 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__id)); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 838; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
 
-  /* "cvcf.pyx":839
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":839
  *                   str(data['pos']+1),   # change to 1-based position
  *                   data['id'],
  *                   data['ref'],             # <<<<<<<<<<<<<<
@@ -16912,7 +17121,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_6 = PyObject_GetItem(__pyx_v_data, ((PyObject *)__pyx_n_s__ref)); if (!__pyx_t_6) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 839; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
 
-  /* "cvcf.pyx":843
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":843
  *                   qual,
  *                   filter,
  *                   self.format_formatdata( data['info'], self._info, separator=";" ),             # <<<<<<<<<<<<<<
@@ -16926,7 +17135,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_9 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___info); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_9);
   __pyx_t_10 = PyTuple_New(2); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+  __Pyx_GOTREF(__pyx_t_10);
   PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_t_8);
   __Pyx_GIVEREF(__pyx_t_8);
   PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_9);
@@ -16935,14 +17144,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_9 = 0;
   __pyx_t_9 = PyDict_New(); if (unlikely(!__pyx_t_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_9));
-  if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__separator), ((PyObject *)__pyx_kp_s_11)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __pyx_t_8 = PyEval_CallObjectWithKeywords(__pyx_t_7, ((PyObject *)__pyx_t_10), ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_9, ((PyObject *)__pyx_n_s__separator), ((PyObject *)__pyx_kp_s_7)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyEval_CallObjectWithKeywords(__pyx_t_7, __pyx_t_10, ((PyObject *)__pyx_t_9)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 843; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+  __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_9)); __pyx_t_9 = 0;
 
-  /* "cvcf.pyx":844
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":844
  *                   filter,
  *                   self.format_formatdata( data['info'], self._info, separator=";" ),
  *                   self.format_formatdata( data['format'], self._format, value=False ) ]             # <<<<<<<<<<<<<<
@@ -16956,7 +17165,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_7);
   __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_11));
+  __Pyx_GOTREF(__pyx_t_11);
   PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_10);
   __Pyx_GIVEREF(__pyx_t_10);
   PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_7);
@@ -16969,10 +17178,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __Pyx_GOTREF(__pyx_t_10);
   if (PyDict_SetItem(__pyx_t_7, ((PyObject *)__pyx_n_s__value), __pyx_t_10) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __pyx_t_10 = PyEval_CallObjectWithKeywords(__pyx_t_9, ((PyObject *)__pyx_t_11), ((PyObject *)__pyx_t_7)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_10 = PyEval_CallObjectWithKeywords(__pyx_t_9, __pyx_t_11, ((PyObject *)__pyx_t_7)); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 844; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
   __Pyx_DECREF(__pyx_t_9); __pyx_t_9 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_11)); __pyx_t_11 = 0;
+  __Pyx_DECREF(__pyx_t_11); __pyx_t_11 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
   __pyx_t_7 = PyList_New(9); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 836; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_7));
@@ -17007,7 +17216,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   __pyx_v_output = __pyx_t_7;
   __pyx_t_7 = 0;
 
-  /* "cvcf.pyx":846
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":846
  *                   self.format_formatdata( data['format'], self._format, value=False ) ]
  * 
  *         for s in self._samples:             # <<<<<<<<<<<<<<
@@ -17042,7 +17251,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     __pyx_v_s = __pyx_t_7;
     __pyx_t_7 = 0;
 
-    /* "cvcf.pyx":847
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":847
  * 
  *         for s in self._samples:
  *             output.append( self.format_formatdata( data[s], self._format, key=False ) )             # <<<<<<<<<<<<<<
@@ -17059,7 +17268,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     __pyx_t_6 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___format); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_8);
     __Pyx_GIVEREF(__pyx_t_8);
     PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_6);
@@ -17072,17 +17281,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
     __Pyx_GOTREF(__pyx_t_8);
     if (PyDict_SetItem(__pyx_t_6, ((PyObject *)__pyx_n_s__key), __pyx_t_8) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-    __pyx_t_8 = PyEval_CallObjectWithKeywords(__pyx_t_7, ((PyObject *)__pyx_t_1), ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_8 = PyEval_CallObjectWithKeywords(__pyx_t_7, __pyx_t_1, ((PyObject *)__pyx_t_6)); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_8);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-    __pyx_t_12 = PyList_Append(__pyx_v_output, __pyx_t_8); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_12 = PyList_Append(((PyObject *)__pyx_v_output), __pyx_t_8); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 847; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
   }
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
 
-  /* "cvcf.pyx":849
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":849
  *             output.append( self.format_formatdata( data[s], self._format, key=False ) )
  * 
  *         stream.write( "\t".join(output) + "\n" )             # <<<<<<<<<<<<<<
@@ -17091,29 +17300,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
  */
   __pyx_t_10 = PyObject_GetAttr(__pyx_v_stream, __pyx_n_s__write); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_10);
-  __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_85), __pyx_n_s__join); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_8 = PyObject_GetAttr(((PyObject *)__pyx_kp_s_51), __pyx_n_s__join); if (unlikely(!__pyx_t_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_8);
   __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+  __Pyx_GOTREF(__pyx_t_6);
   __Pyx_INCREF(((PyObject *)__pyx_v_output));
   PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_v_output));
   __Pyx_GIVEREF(((PyObject *)__pyx_v_output));
-  __pyx_t_1 = PyObject_Call(__pyx_t_8, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_8, __pyx_t_6, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
-  __pyx_t_6 = PyNumber_Add(__pyx_t_1, ((PyObject *)__pyx_kp_s_91)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+  __pyx_t_6 = PyNumber_Add(__pyx_t_1, ((PyObject *)__pyx_kp_s_56)); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_6);
   __Pyx_GIVEREF(__pyx_t_6);
   __pyx_t_6 = 0;
-  __pyx_t_6 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_6 = PyObject_Call(__pyx_t_10, __pyx_t_1, NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 849; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_6);
   __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -17143,7 +17352,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":851
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":851
  *         stream.write( "\t".join(output) + "\n" )
  * 
  *     def _parse_header(self, stream):             # <<<<<<<<<<<<<<
@@ -17151,9 +17360,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_17write_data(PyObject *__pyx_self, PyObject
  *         for line in stream:
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_18_parse_header = {__Pyx_NAMESTR("_parse_header"), (PyCFunction)__pyx_pf_4cvcf_3VCF_18_parse_header, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF__parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF__parse_header = {__Pyx_NAMESTR("_parse_header"), (PyCFunction)__pyx_pf_4cvcf_3VCF__parse_header, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF__parse_header(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_v_line;
@@ -17162,8 +17371,8 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
   PyObject *__pyx_t_2 = NULL;
   PyObject *__pyx_t_3 = NULL;
   PyObject *__pyx_t_4 = NULL;
-  int __pyx_t_5;
-  PyObject *__pyx_t_6 = NULL;
+  PyObject *__pyx_t_5 = NULL;
+  int __pyx_t_6;
   static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__self,&__pyx_n_s__stream,0};
   __Pyx_RefNannySetupContext("_parse_header");
   __pyx_self = __pyx_self;
@@ -17209,7 +17418,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_line = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":852
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":852
  * 
  *     def _parse_header(self, stream):
  *         self._lineno = 0             # <<<<<<<<<<<<<<
@@ -17218,7 +17427,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
  */
   if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___lineno, __pyx_int_0) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 852; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":853
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":853
  *     def _parse_header(self, stream):
  *         self._lineno = 0
  *         for line in stream:             # <<<<<<<<<<<<<<
@@ -17250,7 +17459,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
     __pyx_v_line = __pyx_t_3;
     __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":854
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":854
  *         self._lineno = 0
  *         for line in stream:
  *             self._lineno += 1             # <<<<<<<<<<<<<<
@@ -17265,7 +17474,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___lineno, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 854; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-    /* "cvcf.pyx":855
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":855
  *         for line in stream:
  *             self._lineno += 1
  *             if line.startswith('##'):             # <<<<<<<<<<<<<<
@@ -17274,99 +17483,111 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
  */
     __pyx_t_4 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_k_tuple_116), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_43));
+    PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_43));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_43));
+    __pyx_t_5 = PyObject_Call(__pyx_t_4, __pyx_t_3, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_3); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-    if (__pyx_t_5) {
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    if (__pyx_t_6) {
 
-      /* "cvcf.pyx":856
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":856
  *             self._lineno += 1
  *             if line.startswith('##'):
  *                 self.parse_header( line.strip() )             # <<<<<<<<<<<<<<
  *             elif line.startswith('#'):
  *                 self.parse_heading( line.strip() )
  */
-      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_header); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_header); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__strip); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_4 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__strip); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_6);
-      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-      PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_t_6);
-      __Pyx_GIVEREF(__pyx_t_6);
-      __pyx_t_6 = 0;
-      __pyx_t_6 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_6);
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
-      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
+      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_3);
+      PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
+      __Pyx_GIVEREF(__pyx_t_4);
+      __pyx_t_4 = 0;
+      __pyx_t_4 = PyObject_Call(__pyx_t_5, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 856; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       goto __pyx_L8;
     }
 
-    /* "cvcf.pyx":857
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":857
  *             if line.startswith('##'):
  *                 self.parse_header( line.strip() )
  *             elif line.startswith('#'):             # <<<<<<<<<<<<<<
  *                 self.parse_heading( line.strip() )
  *                 self.enter_default_format()
  */
-    __pyx_t_6 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_6);
-    __pyx_t_4 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_k_tuple_117), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__startswith); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_4);
-    __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __pyx_t_5 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_5 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_3);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_50));
+    PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_50));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_50));
+    __pyx_t_5 = PyObject_Call(__pyx_t_4, __pyx_t_3, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-    if (__pyx_t_5) {
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+    __pyx_t_6 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_6 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    if (__pyx_t_6) {
 
-      /* "cvcf.pyx":858
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":858
  *                 self.parse_header( line.strip() )
  *             elif line.startswith('#'):
  *                 self.parse_heading( line.strip() )             # <<<<<<<<<<<<<<
  *                 self.enter_default_format()
  *             else:
  */
-      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_heading); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_4);
-      __pyx_t_6 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__strip); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_6);
-      __pyx_t_3 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__parse_heading); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_5);
+      __pyx_t_3 = PyObject_GetAttr(__pyx_v_line, __pyx_n_s__strip); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-      __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_6));
-      PyTuple_SET_ITEM(__pyx_t_6, 0, __pyx_t_3);
-      __Pyx_GIVEREF(__pyx_t_3);
-      __pyx_t_3 = 0;
-      __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+      PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_4);
+      __Pyx_GIVEREF(__pyx_t_4);
+      __pyx_t_4 = 0;
+      __pyx_t_4 = PyObject_Call(__pyx_t_5, __pyx_t_3, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 858; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-      /* "cvcf.pyx":859
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":859
  *             elif line.startswith('#'):
  *                 self.parse_heading( line.strip() )
  *                 self.enter_default_format()             # <<<<<<<<<<<<<<
  *             else:
  *                 break
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-      __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_118); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_69); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_4);
+      __pyx_t_3 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_3);
-      __pyx_t_6 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 859; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_6);
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       goto __pyx_L8;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":861
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":861
  *                 self.enter_default_format()
  *             else:
  *                 break             # <<<<<<<<<<<<<<
@@ -17380,7 +17601,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
   __pyx_L7_break:;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":862
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":862
  *             else:
  *                 break
  *         return line             # <<<<<<<<<<<<<<
@@ -17398,7 +17619,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
   __Pyx_XDECREF(__pyx_t_4);
-  __Pyx_XDECREF(__pyx_t_6);
+  __Pyx_XDECREF(__pyx_t_5);
   __Pyx_AddTraceback("cvcf.VCF._parse_header");
   __pyx_r = NULL;
   __pyx_L0:;
@@ -17408,7 +17629,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
   return __pyx_r;
 }
 
-/* "cvcf.pyx":864
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":864
  *         return line
  * 
  *     def _parse(self, line, stream):             # <<<<<<<<<<<<<<
@@ -17416,9 +17637,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_18_parse_header(PyObject *__pyx_self, PyObj
  *             d = self.parse_data( line.strip() )
  */
 
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-static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF__parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF__parse = {__Pyx_NAMESTR("_parse"), (PyCFunction)__pyx_pf_4cvcf_3VCF__parse, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF__parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_line = 0;
   PyObject *__pyx_v_stream = 0;
@@ -17487,7 +17708,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
   __Pyx_INCREF(__pyx_v_line);
   __pyx_v_d = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":865
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":865
  * 
  *     def _parse(self, line, stream):
  *         if len(line.strip()) > 0:             # <<<<<<<<<<<<<<
@@ -17504,7 +17725,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
   __pyx_t_4 = (__pyx_t_3 > 0);
   if (__pyx_t_4) {
 
-    /* "cvcf.pyx":866
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":866
  *     def _parse(self, line, stream):
  *         if len(line.strip()) > 0:
  *             d = self.parse_data( line.strip() )             # <<<<<<<<<<<<<<
@@ -17519,14 +17740,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 866; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_d);
     __pyx_v_d = __pyx_t_5;
     __pyx_t_5 = 0;
@@ -17534,7 +17755,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":868
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":868
  *             d = self.parse_data( line.strip() )
  *             #if d: yield d
  *         for line in stream:             # <<<<<<<<<<<<<<
@@ -17566,7 +17787,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
     __pyx_v_line = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":869
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":869
  *             #if d: yield d
  *         for line in stream:
  *             self._lineno += 1             # <<<<<<<<<<<<<<
@@ -17581,7 +17802,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
     if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s___lineno, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 869; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":870
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":870
  *         for line in stream:
  *             self._lineno += 1
  *             if self._lines and self._lineno > self._lines: raise StopIteration             # <<<<<<<<<<<<<<
@@ -17614,7 +17835,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
     }
     __pyx_L9:;
 
-    /* "cvcf.pyx":871
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":871
  *             self._lineno += 1
  *             if self._lines and self._lineno > self._lines: raise StopIteration
  *             d = self.parse_data( line.strip() )             # <<<<<<<<<<<<<<
@@ -17629,14 +17850,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+    __Pyx_GOTREF(__pyx_t_1);
     PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
     __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_2 = 0;
-    __pyx_t_2 = PyObject_Call(__pyx_t_6, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_Call(__pyx_t_6, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 871; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_DECREF(__pyx_v_d);
     __pyx_v_d = __pyx_t_2;
     __pyx_t_2 = 0;
@@ -17660,7 +17881,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
   return __pyx_r;
 }
 
-/* "cvcf.pyx":880
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":880
  *     ######################################################################################################
  * 
  *     def getsamples(self):             # <<<<<<<<<<<<<<
@@ -17668,16 +17889,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_19_parse(PyObject *__pyx_self, PyObject *__
  *         return self._samples
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_20getsamples(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_20getsamples[] = " List of samples in VCF file ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_20getsamples = {__Pyx_NAMESTR("getsamples"), (PyCFunction)__pyx_pf_4cvcf_3VCF_20getsamples, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_20getsamples)};
-static PyObject *__pyx_pf_4cvcf_3VCF_20getsamples(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_getsamples(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_getsamples[] = " List of samples in VCF file ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_getsamples = {__Pyx_NAMESTR("getsamples"), (PyCFunction)__pyx_pf_4cvcf_3VCF_getsamples, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_getsamples)};
+static PyObject *__pyx_pf_4cvcf_3VCF_getsamples(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("getsamples");
   __pyx_self = __pyx_self;
 
-  /* "cvcf.pyx":882
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":882
  *     def getsamples(self):
  *         """ List of samples in VCF file """
  *         return self._samples             # <<<<<<<<<<<<<<
@@ -17703,7 +17924,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_20getsamples(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":884
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":884
  *         return self._samples
  * 
  *     def setsamples(self,samples):             # <<<<<<<<<<<<<<
@@ -17711,10 +17932,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_20getsamples(PyObject *__pyx_self, PyObject
  *         self._samples = samples
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_21setsamples(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_21setsamples[] = " List of samples in VCF file ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_21setsamples = {__Pyx_NAMESTR("setsamples"), (PyCFunction)__pyx_pf_4cvcf_3VCF_21setsamples, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_21setsamples)};
-static PyObject *__pyx_pf_4cvcf_3VCF_21setsamples(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setsamples(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setsamples[] = " List of samples in VCF file ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setsamples = {__Pyx_NAMESTR("setsamples"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setsamples, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setsamples)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setsamples(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_samples = 0;
   PyObject *__pyx_r = NULL;
@@ -17762,7 +17983,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_21setsamples(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":886
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":886
  *     def setsamples(self,samples):
  *         """ List of samples in VCF file """
  *         self._samples = samples             # <<<<<<<<<<<<<<
@@ -17782,7 +18003,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_21setsamples(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":888
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":888
  *         self._samples = samples
  * 
  *     def getheader(self):             # <<<<<<<<<<<<<<
@@ -17790,16 +18011,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_21setsamples(PyObject *__pyx_self, PyObject
  *         return self._header
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_22getheader(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_22getheader[] = " List of header key-value pairs (strings) ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_22getheader = {__Pyx_NAMESTR("getheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_22getheader, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_22getheader)};
-static PyObject *__pyx_pf_4cvcf_3VCF_22getheader(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_getheader(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_getheader[] = " List of header key-value pairs (strings) ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_getheader = {__Pyx_NAMESTR("getheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_getheader, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_getheader)};
+static PyObject *__pyx_pf_4cvcf_3VCF_getheader(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("getheader");
   __pyx_self = __pyx_self;
 
-  /* "cvcf.pyx":890
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":890
  *     def getheader(self):
  *         """ List of header key-value pairs (strings) """
  *         return self._header             # <<<<<<<<<<<<<<
@@ -17825,7 +18046,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_22getheader(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":892
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":892
  *         return self._header
  * 
  *     def setheader(self,header):             # <<<<<<<<<<<<<<
@@ -17833,10 +18054,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_22getheader(PyObject *__pyx_self, PyObject
  *         self._header = header
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_23setheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_23setheader[] = " List of header key-value pairs (strings) ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_23setheader = {__Pyx_NAMESTR("setheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_23setheader, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_23setheader)};
-static PyObject *__pyx_pf_4cvcf_3VCF_23setheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setheader[] = " List of header key-value pairs (strings) ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setheader = {__Pyx_NAMESTR("setheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setheader, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setheader)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_header = 0;
   PyObject *__pyx_r = NULL;
@@ -17884,7 +18105,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_23setheader(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":894
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":894
  *     def setheader(self,header):
  *         """ List of header key-value pairs (strings) """
  *         self._header = header             # <<<<<<<<<<<<<<
@@ -17904,7 +18125,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_23setheader(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":896
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":896
  *         self._header = header
  * 
  *     def getinfo(self):             # <<<<<<<<<<<<<<
@@ -17912,16 +18133,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_23setheader(PyObject *__pyx_self, PyObject
  *         return self._info
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_24getinfo(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_24getinfo[] = " Dictionary of ##INFO tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_24getinfo = {__Pyx_NAMESTR("getinfo"), (PyCFunction)__pyx_pf_4cvcf_3VCF_24getinfo, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_24getinfo)};
-static PyObject *__pyx_pf_4cvcf_3VCF_24getinfo(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_getinfo(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_getinfo[] = " Dictionary of ##INFO tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_getinfo = {__Pyx_NAMESTR("getinfo"), (PyCFunction)__pyx_pf_4cvcf_3VCF_getinfo, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_getinfo)};
+static PyObject *__pyx_pf_4cvcf_3VCF_getinfo(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("getinfo");
   __pyx_self = __pyx_self;
 
-  /* "cvcf.pyx":898
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":898
  *     def getinfo(self):
  *         """ Dictionary of ##INFO tags, as VCF.FORMAT values """
  *         return self._info             # <<<<<<<<<<<<<<
@@ -17947,7 +18168,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_24getinfo(PyObject *__pyx_self, PyObject *_
   return __pyx_r;
 }
 
-/* "cvcf.pyx":900
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":900
  *         return self._info
  * 
  *     def setinfo(self,info):             # <<<<<<<<<<<<<<
@@ -17955,10 +18176,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_24getinfo(PyObject *__pyx_self, PyObject *_
  *         self._info = info
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_25setinfo(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_25setinfo[] = " Dictionary of ##INFO tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_25setinfo = {__Pyx_NAMESTR("setinfo"), (PyCFunction)__pyx_pf_4cvcf_3VCF_25setinfo, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_25setinfo)};
-static PyObject *__pyx_pf_4cvcf_3VCF_25setinfo(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setinfo(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setinfo[] = " Dictionary of ##INFO tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setinfo = {__Pyx_NAMESTR("setinfo"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setinfo, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setinfo)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setinfo(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_info = 0;
   PyObject *__pyx_r = NULL;
@@ -18006,7 +18227,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_25setinfo(PyObject *__pyx_self, PyObject *_
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":902
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":902
  *     def setinfo(self,info):
  *         """ Dictionary of ##INFO tags, as VCF.FORMAT values """
  *         self._info = info             # <<<<<<<<<<<<<<
@@ -18026,7 +18247,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_25setinfo(PyObject *__pyx_self, PyObject *_
   return __pyx_r;
 }
 
-/* "cvcf.pyx":904
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":904
  *         self._info = info
  * 
  *     def getformat(self):             # <<<<<<<<<<<<<<
@@ -18034,16 +18255,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_25setinfo(PyObject *__pyx_self, PyObject *_
  *         return self._format
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_26getformat(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_26getformat[] = " Dictionary of ##FORMAT tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_26getformat = {__Pyx_NAMESTR("getformat"), (PyCFunction)__pyx_pf_4cvcf_3VCF_26getformat, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_26getformat)};
-static PyObject *__pyx_pf_4cvcf_3VCF_26getformat(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_getformat(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_getformat[] = " Dictionary of ##FORMAT tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_getformat = {__Pyx_NAMESTR("getformat"), (PyCFunction)__pyx_pf_4cvcf_3VCF_getformat, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_getformat)};
+static PyObject *__pyx_pf_4cvcf_3VCF_getformat(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("getformat");
   __pyx_self = __pyx_self;
 
-  /* "cvcf.pyx":906
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":906
  *     def getformat(self):
  *         """ Dictionary of ##FORMAT tags, as VCF.FORMAT values """
  *         return self._format             # <<<<<<<<<<<<<<
@@ -18069,7 +18290,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_26getformat(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":908
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":908
  *         return self._format
  * 
  *     def setformat(self,format):             # <<<<<<<<<<<<<<
@@ -18077,10 +18298,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_26getformat(PyObject *__pyx_self, PyObject
  *         self._format = format
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_27setformat(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_27setformat[] = " Dictionary of ##FORMAT tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_27setformat = {__Pyx_NAMESTR("setformat"), (PyCFunction)__pyx_pf_4cvcf_3VCF_27setformat, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_27setformat)};
-static PyObject *__pyx_pf_4cvcf_3VCF_27setformat(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setformat(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setformat[] = " Dictionary of ##FORMAT tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setformat = {__Pyx_NAMESTR("setformat"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setformat, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setformat)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setformat(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_format = 0;
   PyObject *__pyx_r = NULL;
@@ -18128,7 +18349,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_27setformat(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":910
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":910
  *     def setformat(self,format):
  *         """ Dictionary of ##FORMAT tags, as VCF.FORMAT values """
  *         self._format = format             # <<<<<<<<<<<<<<
@@ -18148,7 +18369,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_27setformat(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":912
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":912
  *         self._format = format
  * 
  *     def getfilter(self):             # <<<<<<<<<<<<<<
@@ -18156,16 +18377,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_27setformat(PyObject *__pyx_self, PyObject
  *         return self._filter
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_28getfilter(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_28getfilter[] = " Dictionary of ##FILTER tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_28getfilter = {__Pyx_NAMESTR("getfilter"), (PyCFunction)__pyx_pf_4cvcf_3VCF_28getfilter, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_28getfilter)};
-static PyObject *__pyx_pf_4cvcf_3VCF_28getfilter(PyObject *__pyx_self, PyObject *__pyx_v_self) {
+static PyObject *__pyx_pf_4cvcf_3VCF_getfilter(PyObject *__pyx_self, PyObject *__pyx_v_self); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_getfilter[] = " Dictionary of ##FILTER tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_getfilter = {__Pyx_NAMESTR("getfilter"), (PyCFunction)__pyx_pf_4cvcf_3VCF_getfilter, METH_O, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_getfilter)};
+static PyObject *__pyx_pf_4cvcf_3VCF_getfilter(PyObject *__pyx_self, PyObject *__pyx_v_self) {
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("getfilter");
   __pyx_self = __pyx_self;
 
-  /* "cvcf.pyx":914
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":914
  *     def getfilter(self):
  *         """ Dictionary of ##FILTER tags, as VCF.FORMAT values """
  *         return self._filter             # <<<<<<<<<<<<<<
@@ -18191,7 +18412,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_28getfilter(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":916
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":916
  *         return self._filter
  * 
  *     def setfilter(self,filter):             # <<<<<<<<<<<<<<
@@ -18199,10 +18420,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_28getfilter(PyObject *__pyx_self, PyObject
  *         self._filter = filter
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_29setfilter(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_29setfilter[] = " Dictionary of ##FILTER tags, as VCF.FORMAT values ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_29setfilter = {__Pyx_NAMESTR("setfilter"), (PyCFunction)__pyx_pf_4cvcf_3VCF_29setfilter, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_29setfilter)};
-static PyObject *__pyx_pf_4cvcf_3VCF_29setfilter(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setfilter(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setfilter[] = " Dictionary of ##FILTER tags, as VCF.FORMAT values ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setfilter = {__Pyx_NAMESTR("setfilter"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setfilter, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setfilter)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setfilter(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_filter = 0;
   PyObject *__pyx_r = NULL;
@@ -18250,7 +18471,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_29setfilter(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":918
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":918
  *     def setfilter(self,filter):
  *         """ Dictionary of ##FILTER tags, as VCF.FORMAT values """
  *         self._filter = filter             # <<<<<<<<<<<<<<
@@ -18270,7 +18491,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_29setfilter(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":920
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":920
  *         self._filter = filter
  * 
  *     def setversion(self, version):             # <<<<<<<<<<<<<<
@@ -18278,9 +18499,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_29setfilter(PyObject *__pyx_self, PyObject
  *         self._version = version
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_30setversion = {__Pyx_NAMESTR("setversion"), (PyCFunction)__pyx_pf_4cvcf_3VCF_30setversion, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setversion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setversion = {__Pyx_NAMESTR("setversion"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setversion, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setversion(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_version = 0;
   PyObject *__pyx_r = NULL;
@@ -18288,6 +18509,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
   int __pyx_t_2;
   int __pyx_t_3;
   int __pyx_t_4;
+  PyObject *__pyx_t_5 = NULL;
   static PyObject **__pyx_pyargnames[] = {&__pyx_n_s__self,&__pyx_n_s__version,0};
   __Pyx_RefNannySetupContext("setversion");
   __pyx_self = __pyx_self;
@@ -18332,7 +18554,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":921
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":921
  * 
  *     def setversion(self, version):
  *         if version != 33 and version != 40: raise ValueError("Can only handle v3.3 and v4.0 VCF files")             # <<<<<<<<<<<<<<
@@ -18353,16 +18575,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
     __pyx_t_4 = __pyx_t_2;
   }
   if (__pyx_t_4) {
-    __pyx_t_1 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_k_tuple_120), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_Raise(__pyx_t_1, 0, 0);
+    __Pyx_INCREF(((PyObject *)__pyx_kp_s_70));
+    PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_70));
+    __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_70));
+    __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_1, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_Raise(__pyx_t_5, 0, 0);
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     {__pyx_filename = __pyx_f[0]; __pyx_lineno = 921; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     goto __pyx_L6;
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":922
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":922
  *     def setversion(self, version):
  *         if version != 33 and version != 40: raise ValueError("Can only handle v3.3 and v4.0 VCF files")
  *         self._version = version             # <<<<<<<<<<<<<<
@@ -18375,6 +18603,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
   goto __pyx_L0;
   __pyx_L1_error:;
   __Pyx_XDECREF(__pyx_t_1);
+  __Pyx_XDECREF(__pyx_t_5);
   __Pyx_AddTraceback("cvcf.VCF.setversion");
   __pyx_r = NULL;
   __pyx_L0:;
@@ -18383,7 +18612,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":924
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":924
  *         self._version = version
  * 
  *     def setregions(self, regions):             # <<<<<<<<<<<<<<
@@ -18391,9 +18620,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_30setversion(PyObject *__pyx_self, PyObject
  * 
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_31setregions(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_31setregions = {__Pyx_NAMESTR("setregions"), (PyCFunction)__pyx_pf_4cvcf_3VCF_31setregions, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_31setregions(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setregions(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setregions = {__Pyx_NAMESTR("setregions"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setregions, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setregions(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_regions = 0;
   PyObject *__pyx_r = NULL;
@@ -18441,7 +18670,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_31setregions(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":925
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":925
  * 
  *     def setregions(self, regions):
  *         self._regions = regions             # <<<<<<<<<<<<<<
@@ -18461,7 +18690,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_31setregions(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":927
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":927
  *         self._regions = regions
  * 
  *     def setreference(self, ref):             # <<<<<<<<<<<<<<
@@ -18469,10 +18698,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_31setregions(PyObject *__pyx_self, PyObject
  *         self._reference = ref
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_32setreference(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_32setreference[] = " Provide a reference sequence; a Python class supporting a fetch(chromosome, start, end) method, e.g. PySam.FastaFile ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_32setreference = {__Pyx_NAMESTR("setreference"), (PyCFunction)__pyx_pf_4cvcf_3VCF_32setreference, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_32setreference)};
-static PyObject *__pyx_pf_4cvcf_3VCF_32setreference(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_setreference(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_setreference[] = " Provide a reference sequence; a Python class supporting a fetch(chromosome, start, end) method, e.g. PySam.FastaFile ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_setreference = {__Pyx_NAMESTR("setreference"), (PyCFunction)__pyx_pf_4cvcf_3VCF_setreference, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_setreference)};
+static PyObject *__pyx_pf_4cvcf_3VCF_setreference(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_ref = 0;
   PyObject *__pyx_r = NULL;
@@ -18520,7 +18749,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_32setreference(PyObject *__pyx_self, PyObje
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":929
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":929
  *     def setreference(self, ref):
  *         """ Provide a reference sequence; a Python class supporting a fetch(chromosome, start, end) method, e.g. PySam.FastaFile """
  *         self._reference = ref             # <<<<<<<<<<<<<<
@@ -18540,7 +18769,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_32setreference(PyObject *__pyx_self, PyObje
   return __pyx_r;
 }
 
-/* "cvcf.pyx":931
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":931
  *         self._reference = ref
  * 
  *     def ignoreerror(self, errorstring):             # <<<<<<<<<<<<<<
@@ -18548,9 +18777,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_32setreference(PyObject *__pyx_self, PyObje
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_33ignoreerror = {__Pyx_NAMESTR("ignoreerror"), (PyCFunction)__pyx_pf_4cvcf_3VCF_33ignoreerror, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_ignoreerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_ignoreerror = {__Pyx_NAMESTR("ignoreerror"), (PyCFunction)__pyx_pf_4cvcf_3VCF_ignoreerror, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_ignoreerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_errorstring = 0;
   PyObject *__pyx_r = NULL;
@@ -18604,7 +18833,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":932
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":932
  * 
  *     def ignoreerror(self, errorstring):
  *         try:             self._ignored_errors.add(self.__dict__[errorstring])             # <<<<<<<<<<<<<<
@@ -18629,14 +18858,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_3);
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_3 = 0;
-      __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
+      __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 932; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     }
     __Pyx_XDECREF(__pyx_save_exc_type); __pyx_save_exc_type = 0;
@@ -18648,7 +18877,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":933
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":933
  *     def ignoreerror(self, errorstring):
  *         try:             self._ignored_errors.add(self.__dict__[errorstring])
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)             # <<<<<<<<<<<<<<
@@ -18662,16 +18891,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_121), __pyx_v_errorstring); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_71), __pyx_v_errorstring); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_5));
       __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+      __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_5));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_6, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_Raise(__pyx_t_5, 0, 0);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       {__pyx_filename = __pyx_f[0]; __pyx_lineno = 933; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
@@ -18710,7 +18939,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":935
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":935
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  * 
  *     def warnerror(self, errorstring):             # <<<<<<<<<<<<<<
@@ -18718,9 +18947,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_33ignoreerror(PyObject *__pyx_self, PyObjec
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_34warnerror = {__Pyx_NAMESTR("warnerror"), (PyCFunction)__pyx_pf_4cvcf_3VCF_34warnerror, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
-static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_warnerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_warnerror = {__Pyx_NAMESTR("warnerror"), (PyCFunction)__pyx_pf_4cvcf_3VCF_warnerror, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)};
+static PyObject *__pyx_pf_4cvcf_3VCF_warnerror(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_errorstring = 0;
   PyObject *__pyx_r = NULL;
@@ -18774,7 +19003,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":936
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":936
  * 
  *     def warnerror(self, errorstring):
  *         try:             self._warn_errors.add(self.__dict__[errorstring])             # <<<<<<<<<<<<<<
@@ -18799,14 +19028,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 936; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __Pyx_GOTREF(__pyx_t_1);
       PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_3);
       __Pyx_GIVEREF(__pyx_t_3);
       __pyx_t_3 = 0;
-      __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 936; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
+      __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 936; __pyx_clineno = __LINE__; goto __pyx_L6_error;}
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     }
     __Pyx_XDECREF(__pyx_save_exc_type); __pyx_save_exc_type = 0;
@@ -18818,7 +19047,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
     __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
     __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-    /* "cvcf.pyx":937
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":937
  *     def warnerror(self, errorstring):
  *         try:             self._warn_errors.add(self.__dict__[errorstring])
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)             # <<<<<<<<<<<<<<
@@ -18832,16 +19061,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
       __Pyx_GOTREF(__pyx_t_3);
       __Pyx_GOTREF(__pyx_t_1);
       __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_121), __pyx_v_errorstring); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+      __pyx_t_5 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_71), __pyx_v_errorstring); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_5));
       __pyx_t_6 = PyTuple_New(1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_6));
+      __Pyx_GOTREF(__pyx_t_6);
       PyTuple_SET_ITEM(__pyx_t_6, 0, ((PyObject *)__pyx_t_5));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_5));
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, ((PyObject *)__pyx_t_6), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_builtin_ValueError, __pyx_t_6, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_DECREF(((PyObject *)__pyx_t_6)); __pyx_t_6 = 0;
+      __Pyx_DECREF(__pyx_t_6); __pyx_t_6 = 0;
       __Pyx_Raise(__pyx_t_5, 0, 0);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       {__pyx_filename = __pyx_f[0]; __pyx_lineno = 937; __pyx_clineno = __LINE__; goto __pyx_L8_except_error;}
@@ -18880,7 +19109,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
   return __pyx_r;
 }
 
-/* "cvcf.pyx":939
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":939
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  * 
  *     def parse(self, stream):             # <<<<<<<<<<<<<<
@@ -18888,10 +19117,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_34warnerror(PyObject *__pyx_self, PyObject
  *         last_line = self._parse_header(stream)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_35parse[] = " Parse a stream of VCF-formatted lines.  Initializes class instance and return generator ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_35parse = {__Pyx_NAMESTR("parse"), (PyCFunction)__pyx_pf_4cvcf_3VCF_35parse, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_35parse)};
-static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_parse[] = " Parse a stream of VCF-formatted lines.  Initializes class instance and return generator ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_parse = {__Pyx_NAMESTR("parse"), (PyCFunction)__pyx_pf_4cvcf_3VCF_parse, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_parse)};
+static PyObject *__pyx_pf_4cvcf_3VCF_parse(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_v_last_line;
@@ -18944,7 +19173,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__p
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_last_line = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":941
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":941
  *     def parse(self, stream):
  *         """ Parse a stream of VCF-formatted lines.  Initializes class instance and return generator """
  *         last_line = self._parse_header(stream)             # <<<<<<<<<<<<<<
@@ -18954,19 +19183,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__p
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___parse_header); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 941; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_v_last_line);
   __pyx_v_last_line = __pyx_t_3;
   __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":944
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":944
  *         # now return a generator that does the actual work.  In this way the pre-processing is done
  *         # before the first piece of data is yielded
  *         return self._parse(last_line, stream)             # <<<<<<<<<<<<<<
@@ -18977,17 +19206,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__p
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___parse); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_last_line);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_last_line);
   __Pyx_GIVEREF(__pyx_v_last_line);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 944; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __pyx_r = __pyx_t_1;
   __pyx_t_1 = 0;
   goto __pyx_L0;
@@ -19007,7 +19236,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__p
   return __pyx_r;
 }
 
-/* "cvcf.pyx":946
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":946
  *         return self._parse(last_line, stream)
  * 
  *     def write(self, stream, datagenerator):             # <<<<<<<<<<<<<<
@@ -19015,10 +19244,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_35parse(PyObject *__pyx_self, PyObject *__p
  *         self.write_header(stream)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_36write[] = " Writes a VCF file to a stream, using a data generator (or list) ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_36write = {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pf_4cvcf_3VCF_36write, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_36write)};
-static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_write(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_write[] = " Writes a VCF file to a stream, using a data generator (or list) ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_write = {__Pyx_NAMESTR("write"), (PyCFunction)__pyx_pf_4cvcf_3VCF_write, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_write)};
+static PyObject *__pyx_pf_4cvcf_3VCF_write(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_v_datagenerator = 0;
@@ -19083,7 +19312,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
   __pyx_L4_argument_unpacking_done:;
   __pyx_v_data = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":948
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":948
  *     def write(self, stream, datagenerator):
  *         """ Writes a VCF file to a stream, using a data generator (or list) """
  *         self.write_header(stream)             # <<<<<<<<<<<<<<
@@ -19093,17 +19322,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
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   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 948; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":949
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":949
  *         """ Writes a VCF file to a stream, using a data generator (or list) """
  *         self.write_header(stream)
  *         self.write_heading(stream)             # <<<<<<<<<<<<<<
@@ -19113,17 +19342,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
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   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 949; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":950
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":950
  *         self.write_header(stream)
  *         self.write_heading(stream)
  *         for data in datagenerator: self.write_data(stream,data)             # <<<<<<<<<<<<<<
@@ -19157,17 +19386,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
     __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__write_data); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+    __Pyx_GOTREF(__pyx_t_3);
     __Pyx_INCREF(__pyx_v_stream);
     PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_v_stream);
     __Pyx_GIVEREF(__pyx_v_stream);
     __Pyx_INCREF(__pyx_v_data);
     PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_v_data);
     __Pyx_GIVEREF(__pyx_v_data);
-    __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 950; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
+    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
@@ -19188,7 +19417,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
   return __pyx_r;
 }
 
-/* "cvcf.pyx":952
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":952
  *         for data in datagenerator: self.write_data(stream,data)
  * 
  *     def writeheader(self, stream):             # <<<<<<<<<<<<<<
@@ -19196,10 +19425,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_36write(PyObject *__pyx_self, PyObject *__p
  *         self.write_header(stream)
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_37writeheader[] = " Writes a VCF header ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_37writeheader = {__Pyx_NAMESTR("writeheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_37writeheader, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_37writeheader)};
-static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_writeheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_writeheader[] = " Writes a VCF header ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_writeheader = {__Pyx_NAMESTR("writeheader"), (PyCFunction)__pyx_pf_4cvcf_3VCF_writeheader, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_writeheader)};
+static PyObject *__pyx_pf_4cvcf_3VCF_writeheader(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_stream = 0;
   PyObject *__pyx_r = NULL;
@@ -19250,7 +19479,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObjec
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":954
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":954
  *     def writeheader(self, stream):
  *         """ Writes a VCF header """
  *         self.write_header(stream)             # <<<<<<<<<<<<<<
@@ -19260,17 +19489,17 @@ static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObjec
   __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__write_header); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_3 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 954; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":955
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":955
  *         """ Writes a VCF header """
  *         self.write_header(stream)
  *         self.write_heading(stream)             # <<<<<<<<<<<<<<
@@ -19280,14 +19509,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObjec
   __pyx_t_3 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__write_heading); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_INCREF(__pyx_v_stream);
   PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_stream);
   __Pyx_GIVEREF(__pyx_v_stream);
-  __pyx_t_1 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyObject_Call(__pyx_t_3, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 955; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -19304,7 +19533,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObjec
   return __pyx_r;
 }
 
-/* "cvcf.pyx":957
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":957
  *         self.write_heading(stream)
  * 
  *     def compare_calls(self, pos1, ref1, alt1, pos2, ref2, alt2):             # <<<<<<<<<<<<<<
@@ -19312,10 +19541,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_37writeheader(PyObject *__pyx_self, PyObjec
  *         # a variant should always be assigned to a unique position, one base before
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_38compare_calls[] = " Utility function: compares two calls for equality ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_38compare_calls = {__Pyx_NAMESTR("compare_calls"), (PyCFunction)__pyx_pf_4cvcf_3VCF_38compare_calls, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_38compare_calls)};
-static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_compare_calls(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_compare_calls[] = " Utility function: compares two calls for equality ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_compare_calls = {__Pyx_NAMESTR("compare_calls"), (PyCFunction)__pyx_pf_4cvcf_3VCF_compare_calls, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_compare_calls)};
+static PyObject *__pyx_pf_4cvcf_3VCF_compare_calls(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_pos1 = 0;
   PyObject *__pyx_v_ref1 = 0;
@@ -19425,7 +19654,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
   __Pyx_INCREF(__pyx_v_ref2);
   __Pyx_INCREF(__pyx_v_alt2);
 
-  /* "cvcf.pyx":962
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":962
  *         # the leftmost position of the alignment gap.  If this rule is implemented
  *         # correctly, the two positions must be equal for the calls to be identical.
  *         if pos1 != pos2: return False             # <<<<<<<<<<<<<<
@@ -19447,7 +19676,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
   }
   __pyx_L6:;
 
-  /* "cvcf.pyx":965
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":965
  *         # from both calls, trim rightmost bases when identical.  Do this safely, i.e.
  *         # only when the reference bases are not Ns
  *         while len(ref1)>0 and len(alt1)>0 and ref1[-1] == alt1[-1]:             # <<<<<<<<<<<<<<
@@ -19481,34 +19710,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
     }
     if (!__pyx_t_4) break;
 
-    /* "cvcf.pyx":966
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":966
  *         # only when the reference bases are not Ns
  *         while len(ref1)>0 and len(alt1)>0 and ref1[-1] == alt1[-1]:
  *             ref1 = ref1[:-1]             # <<<<<<<<<<<<<<
  *             alt1 = alt1[:-1]
  *         while len(ref2)>0 and len(alt2)>0 and ref2[-1] == alt2[-1]:
  */
-    __pyx_t_6 = __Pyx_PySequence_GetSlice(__pyx_v_ref1, 0, -1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PySequence_GetSlice(__pyx_v_ref1, 0, -1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 966; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_v_ref1);
     __pyx_v_ref1 = __pyx_t_6;
     __pyx_t_6 = 0;
 
-    /* "cvcf.pyx":967
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":967
  *         while len(ref1)>0 and len(alt1)>0 and ref1[-1] == alt1[-1]:
  *             ref1 = ref1[:-1]
  *             alt1 = alt1[:-1]             # <<<<<<<<<<<<<<
  *         while len(ref2)>0 and len(alt2)>0 and ref2[-1] == alt2[-1]:
  *             ref2 = ref2[:-1]
  */
-    __pyx_t_6 = __Pyx_PySequence_GetSlice(__pyx_v_alt1, 0, -1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_6 = PySequence_GetSlice(__pyx_v_alt1, 0, -1); if (unlikely(!__pyx_t_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 967; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_6);
     __Pyx_DECREF(__pyx_v_alt1);
     __pyx_v_alt1 = __pyx_t_6;
     __pyx_t_6 = 0;
   }
 
-  /* "cvcf.pyx":968
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":968
  *             ref1 = ref1[:-1]
  *             alt1 = alt1[:-1]
  *         while len(ref2)>0 and len(alt2)>0 and ref2[-1] == alt2[-1]:             # <<<<<<<<<<<<<<
@@ -19542,34 +19771,34 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
     }
     if (!__pyx_t_2) break;
 
-    /* "cvcf.pyx":969
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":969
  *             alt1 = alt1[:-1]
  *         while len(ref2)>0 and len(alt2)>0 and ref2[-1] == alt2[-1]:
  *             ref2 = ref2[:-1]             # <<<<<<<<<<<<<<
  *             alt2 = alt2[:-1]
  *         # now, the alternative alleles must be identical
  */
-    __pyx_t_1 = __Pyx_PySequence_GetSlice(__pyx_v_ref2, 0, -1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PySequence_GetSlice(__pyx_v_ref2, 0, -1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 969; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_v_ref2);
     __pyx_v_ref2 = __pyx_t_1;
     __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":970
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":970
  *         while len(ref2)>0 and len(alt2)>0 and ref2[-1] == alt2[-1]:
  *             ref2 = ref2[:-1]
  *             alt2 = alt2[:-1]             # <<<<<<<<<<<<<<
  *         # now, the alternative alleles must be identical
  *         return alt1 == alt2
  */
-    __pyx_t_1 = __Pyx_PySequence_GetSlice(__pyx_v_alt2, 0, -1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PySequence_GetSlice(__pyx_v_alt2, 0, -1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 970; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_v_alt2);
     __pyx_v_alt2 = __pyx_t_1;
     __pyx_t_1 = 0;
   }
 
-  /* "cvcf.pyx":972
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":972
  *             alt2 = alt2[:-1]
  *         # now, the alternative alleles must be identical
  *         return alt1 == alt2             # <<<<<<<<<<<<<<
@@ -19601,7 +19830,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
   return __pyx_r;
 }
 
-/* "cvcf.pyx":979
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":979
  * ###########################################################################################################
  * 
  *     def connect( self, filename ):             # <<<<<<<<<<<<<<
@@ -19609,10 +19838,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_38compare_calls(PyObject *__pyx_self, PyObj
  *         self.tabixfile = pysam.Tabixfile( filename )
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_39connect[] = "connect to tabix file.";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_39connect = {__Pyx_NAMESTR("connect"), (PyCFunction)__pyx_pf_4cvcf_3VCF_39connect, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_39connect)};
-static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_connect(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_connect[] = "connect to tabix file.";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_connect = {__Pyx_NAMESTR("connect"), (PyCFunction)__pyx_pf_4cvcf_3VCF_connect, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_connect)};
+static PyObject *__pyx_pf_4cvcf_3VCF_connect(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_filename = 0;
   PyObject *__pyx_r = NULL;
@@ -19663,7 +19892,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *_
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":981
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":981
  *     def connect( self, filename ):
  *         '''connect to tabix file.'''
  *         self.tabixfile = pysam.Tabixfile( filename )             # <<<<<<<<<<<<<<
@@ -19676,18 +19905,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *_
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_v_filename);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_filename);
   __Pyx_GIVEREF(__pyx_v_filename);
-  __pyx_t_3 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (PyObject_SetAttr(__pyx_v_self, __pyx_n_s__tabixfile, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 981; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":982
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":982
  *         '''connect to tabix file.'''
  *         self.tabixfile = pysam.Tabixfile( filename )
  *         self._parse_header(self.tabixfile.header)             # <<<<<<<<<<<<<<
@@ -19702,14 +19931,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *_
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
   __Pyx_GIVEREF(__pyx_t_2);
   __pyx_t_2 = 0;
-  __pyx_t_2 = PyObject_Call(__pyx_t_3, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_Call(__pyx_t_3, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 982; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
@@ -19726,7 +19955,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *_
   return __pyx_r;
 }
 
-/* "cvcf.pyx":984
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":984
  *         self._parse_header(self.tabixfile.header)
  * 
  *     def fetch(self,             # <<<<<<<<<<<<<<
@@ -19734,10 +19963,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_39connect(PyObject *__pyx_self, PyObject *_
  *               start = None,
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_40fetch[] = " Parse a stream of VCF-formatted lines.  Initializes class instance and return generator ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_40fetch = {__Pyx_NAMESTR("fetch"), (PyCFunction)__pyx_pf_4cvcf_3VCF_40fetch, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_40fetch)};
-static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_fetch(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_fetch[] = " Parse a stream of VCF-formatted lines.  Initializes class instance and return generator ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_fetch = {__Pyx_NAMESTR("fetch"), (PyCFunction)__pyx_pf_4cvcf_3VCF_fetch, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_fetch)};
+static PyObject *__pyx_pf_4cvcf_3VCF_fetch(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_reference = 0;
   PyObject *__pyx_v_start = 0;
@@ -19756,7 +19985,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
     Py_ssize_t kw_args = PyDict_Size(__pyx_kwds);
     PyObject* values[5] = {0,0,0,0,0};
 
-    /* "cvcf.pyx":985
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":985
  * 
  *     def fetch(self,
  *               reference = None,             # <<<<<<<<<<<<<<
@@ -19765,7 +19994,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     values[1] = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":986
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":986
  *     def fetch(self,
  *               reference = None,
  *               start = None,             # <<<<<<<<<<<<<<
@@ -19774,7 +20003,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     values[2] = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":987
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":987
  *               reference = None,
  *               start = None,
  *               end = None,             # <<<<<<<<<<<<<<
@@ -19783,7 +20012,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     values[3] = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":988
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":988
  *               start = None,
  *               end = None,
  *               region = None ):             # <<<<<<<<<<<<<<
@@ -19836,7 +20065,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
     __pyx_v_region = values[4];
   } else {
 
-    /* "cvcf.pyx":985
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":985
  * 
  *     def fetch(self,
  *               reference = None,             # <<<<<<<<<<<<<<
@@ -19845,7 +20074,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     __pyx_v_reference = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":986
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":986
  *     def fetch(self,
  *               reference = None,
  *               start = None,             # <<<<<<<<<<<<<<
@@ -19854,7 +20083,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     __pyx_v_start = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":987
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":987
  *               reference = None,
  *               start = None,
  *               end = None,             # <<<<<<<<<<<<<<
@@ -19863,7 +20092,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  */
     __pyx_v_end = ((PyObject *)Py_None);
 
-    /* "cvcf.pyx":988
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":988
  *               start = None,
  *               end = None,
  *               region = None ):             # <<<<<<<<<<<<<<
@@ -19890,7 +20119,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
   return NULL;
   __pyx_L4_argument_unpacking_done:;
 
-  /* "cvcf.pyx":991
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":991
  *         """ Parse a stream of VCF-formatted lines.  Initializes class instance and return generator """
  * 
  *         return self.tabixfile.fetch( reference, start, end, region, parser = asVCFRecord( self ) )             # <<<<<<<<<<<<<<
@@ -19904,7 +20133,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __pyx_t_1 = PyTuple_New(4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_INCREF(__pyx_v_reference);
   PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_reference);
   __Pyx_GIVEREF(__pyx_v_reference);
@@ -19920,19 +20149,19 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
   __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+  __Pyx_GOTREF(__pyx_t_4);
   __Pyx_INCREF(__pyx_v_self);
   PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_self);
   __Pyx_GIVEREF(__pyx_v_self);
-  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cvcf_asVCFRecord)), ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyObject_Call(((PyObject *)((PyObject*)__pyx_ptype_4cvcf_asVCFRecord)), __pyx_t_4, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
   if (PyDict_SetItem(__pyx_t_3, ((PyObject *)__pyx_n_s__parser), __pyx_t_5) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_5 = PyEval_CallObjectWithKeywords(__pyx_t_2, ((PyObject *)__pyx_t_1), ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_5 = PyEval_CallObjectWithKeywords(__pyx_t_2, __pyx_t_1, ((PyObject *)__pyx_t_3)); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 991; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
   __pyx_r = __pyx_t_5;
   __pyx_t_5 = 0;
@@ -19954,7 +20183,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
   return __pyx_r;
 }
 
-/* "cvcf.pyx":993
+/* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":993
  *         return self.tabixfile.fetch( reference, start, end, region, parser = asVCFRecord( self ) )
  * 
  *     def validate( self, record ):             # <<<<<<<<<<<<<<
@@ -19962,10 +20191,10 @@ static PyObject *__pyx_pf_4cvcf_3VCF_40fetch(PyObject *__pyx_self, PyObject *__p
  * 
  */
 
-static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static char __pyx_doc_4cvcf_3VCF_41validate[] = "validate vcf record.\n\n        returns a validated record.\n        ";
-static PyMethodDef __pyx_mdef_4cvcf_3VCF_41validate = {__Pyx_NAMESTR("validate"), (PyCFunction)__pyx_pf_4cvcf_3VCF_41validate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_41validate)};
-static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+static PyObject *__pyx_pf_4cvcf_3VCF_validate(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static char __pyx_doc_4cvcf_3VCF_validate[] = "validate vcf record.\n\n        returns a validated record.\n        ";
+static PyMethodDef __pyx_mdef_4cvcf_3VCF_validate = {__Pyx_NAMESTR("validate"), (PyCFunction)__pyx_pf_4cvcf_3VCF_validate, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(__pyx_doc_4cvcf_3VCF_validate)};
+static PyObject *__pyx_pf_4cvcf_3VCF_validate(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
   PyObject *__pyx_v_self = 0;
   PyObject *__pyx_v_record = 0;
   PyObject *__pyx_v_chrom;
@@ -19990,6 +20219,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   int __pyx_v_movable;
   PyObject *__pyx_v_longest;
   PyObject *__pyx_v_shortest;
+  PyObject *__pyx_8genexpr1__pyx_v_allele;
   PyObject *__pyx_r = NULL;
   PyObject *__pyx_t_1 = NULL;
   PyObject *__pyx_t_2 = NULL;
@@ -20061,156 +20291,163 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   __pyx_v_faref_leftflank = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_faref = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_f = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_newalts = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_newalts = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_a = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_l = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_addns = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_i = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_na = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_s = Py_None; __Pyx_INCREF(Py_None);
-  __pyx_v_alt = ((PyObject*)Py_None); __Pyx_INCREF(Py_None);
+  __pyx_v_alt = ((PyObject *)Py_None); __Pyx_INCREF(Py_None);
   __pyx_v_addn = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_allele = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_longest = Py_None; __Pyx_INCREF(Py_None);
   __pyx_v_shortest = Py_None; __Pyx_INCREF(Py_None);
+  __pyx_8genexpr1__pyx_v_allele = Py_None; __Pyx_INCREF(Py_None);
 
-  /* "cvcf.pyx":999
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":999
  *         '''
  * 
  *         raise NotImplementedError( "needs to be checked" )             # <<<<<<<<<<<<<<
  * 
  *         chrom, pos = record.chrom, record.pos
  */
-  __pyx_t_1 = PyObject_Call(__pyx_builtin_NotImplementedError, ((PyObject *)__pyx_k_tuple_123), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_Raise(__pyx_t_1, 0, 0);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_72));
+  PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_72));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_72));
+  __pyx_t_2 = PyObject_Call(__pyx_builtin_NotImplementedError, __pyx_t_1, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_Raise(__pyx_t_2, 0, 0);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   {__pyx_filename = __pyx_f[0]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":1001
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1001
  *         raise NotImplementedError( "needs to be checked" )
  * 
  *         chrom, pos = record.chrom, record.pos             # <<<<<<<<<<<<<<
  * 
  *         # check reference
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__chrom); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__pos); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__chrom); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__pos); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1001; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_v_chrom);
-  __pyx_v_chrom = __pyx_t_1;
-  __pyx_t_1 = 0;
-  __Pyx_DECREF(__pyx_v_pos);
-  __pyx_v_pos = __pyx_t_2;
+  __pyx_v_chrom = __pyx_t_2;
   __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_v_pos);
+  __pyx_v_pos = __pyx_t_1;
+  __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":1004
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1004
  * 
  *         # check reference
  *         ref = record.ref             # <<<<<<<<<<<<<<
  *         if ref == ".":
  *             self.error(str(record),self.MISSING_REF)
  */
-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__ref); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__ref); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1004; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_v_ref);
-  __pyx_v_ref = __pyx_t_2;
-  __pyx_t_2 = 0;
+  __pyx_v_ref = __pyx_t_1;
+  __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":1005
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1005
  *         # check reference
  *         ref = record.ref
  *         if ref == ".":             # <<<<<<<<<<<<<<
  *             self.error(str(record),self.MISSING_REF)
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
  */
-  __pyx_t_2 = PyObject_RichCompare(__pyx_v_ref, ((PyObject *)__pyx_kp_s_9), Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_1 = PyObject_RichCompare(__pyx_v_ref, ((PyObject *)__pyx_kp_s_6), Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1005; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":1006
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1006
  *         ref = record.ref
  *         if ref == ".":
  *             self.error(str(record),self.MISSING_REF)             # <<<<<<<<<<<<<<
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
  *             else:                   ref = ""
  */
-    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_1));
     __Pyx_INCREF(__pyx_v_record);
-    PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_record);
+    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_record);
     __Pyx_GIVEREF(__pyx_v_record);
-    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_GOTREF(__pyx_t_1);
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__MISSING_REF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+    __Pyx_GOTREF(__pyx_t_5);
     PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_4);
     __Pyx_GIVEREF(__pyx_t_4);
-    PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_1);
-    __Pyx_GIVEREF(__pyx_t_1);
+    PyTuple_SET_ITEM(__pyx_t_5, 1, __pyx_t_2);
+    __Pyx_GIVEREF(__pyx_t_2);
     __pyx_t_4 = 0;
-    __pyx_t_1 = 0;
-    __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+    __pyx_t_2 = 0;
+    __pyx_t_2 = PyObject_Call(__pyx_t_1, __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1006; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":1007
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1007
  *         if ref == ".":
  *             self.error(str(record),self.MISSING_REF)
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  *         else:
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-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___version); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_5 = PyObject_RichCompare(__pyx_t_1, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___version); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_5 = PyObject_RichCompare(__pyx_t_2, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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       __pyx_t_5 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_1 = PyNumber_Add(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyNumber_Add(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_4 = PyTuple_New(4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+      __Pyx_GOTREF(__pyx_t_4);
       __Pyx_INCREF(__pyx_v_chrom);
       PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_chrom);
       __Pyx_GIVEREF(__pyx_v_chrom);
       __Pyx_INCREF(__pyx_v_pos);
       PyTuple_SET_ITEM(__pyx_t_4, 1, __pyx_v_pos);
       __Pyx_GIVEREF(__pyx_v_pos);
-      PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_t_1);
-      __Pyx_GIVEREF(__pyx_t_1);
-      PyTuple_SET_ITEM(__pyx_t_4, 3, __pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_t_2);
       __Pyx_GIVEREF(__pyx_t_2);
-      __pyx_t_1 = 0;
+      PyTuple_SET_ITEM(__pyx_t_4, 3, __pyx_t_1);
+      __Pyx_GIVEREF(__pyx_t_1);
       __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_1 = 0;
+      __pyx_t_1 = PyObject_Call(__pyx_t_5, __pyx_t_4, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1007; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __Pyx_DECREF(__pyx_v_ref);
-      __pyx_v_ref = __pyx_t_2;
-      __pyx_t_2 = 0;
+      __pyx_v_ref = __pyx_t_1;
+      __pyx_t_1 = 0;
       goto __pyx_L7;
     }
     /*else*/ {
 
-      /* "cvcf.pyx":1008
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1008
  *             self.error(str(record),self.MISSING_REF)
  *             if self._version == 33: ref = get_sequence(chrom,pos,pos+1,self._reference)
  *             else:                   ref = ""             # <<<<<<<<<<<<<<
@@ -20226,7 +20463,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   }
   /*else*/ {
 
-    /* "cvcf.pyx":1010
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1010
  *             else:                   ref = ""
  *         else:
  *             for c in ref:             # <<<<<<<<<<<<<<
@@ -20234,20 +20471,20 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                 if "N" in ref: ref = get_sequence(chrom,
  */
     if (PyList_CheckExact(__pyx_v_ref) || PyTuple_CheckExact(__pyx_v_ref)) {
-      __pyx_t_6 = 0; __pyx_t_2 = __pyx_v_ref; __Pyx_INCREF(__pyx_t_2);
+      __pyx_t_6 = 0; __pyx_t_1 = __pyx_v_ref; __Pyx_INCREF(__pyx_t_1);
     } else {
-      __pyx_t_6 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_v_ref); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_6 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_v_ref); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
     }
     for (;;) {
-      if (likely(PyList_CheckExact(__pyx_t_2))) {
-        if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_2)) break;
-        __pyx_t_4 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
-      } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
-        if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
-        __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
+      if (likely(PyList_CheckExact(__pyx_t_1))) {
+        if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_1)) break;
+        __pyx_t_4 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
+      } else if (likely(PyTuple_CheckExact(__pyx_t_1))) {
+        if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
+        __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
       } else {
-        __pyx_t_4 = PyIter_Next(__pyx_t_2);
+        __pyx_t_4 = PyIter_Next(__pyx_t_1);
         if (!__pyx_t_4) {
           if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1010; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           break;
@@ -20258,7 +20495,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       __pyx_v_c = __pyx_t_4;
       __pyx_t_4 = 0;
 
-      /* "cvcf.pyx":1011
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1011
  *         else:
  *             for c in ref:
  *                 if c not in "ACGTN": self.error(str(record),self.UNKNOWN_CHAR_IN_REF)             # <<<<<<<<<<<<<<
@@ -20270,33 +20507,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
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         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+        __Pyx_GOTREF(__pyx_t_5);
         __Pyx_INCREF(__pyx_v_record);
         PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_record);
         __Pyx_GIVEREF(__pyx_v_record);
-        __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+        __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
         __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__UNKNOWN_CHAR_IN_REF); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
         __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_7));
-        PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_1);
-        __Pyx_GIVEREF(__pyx_t_1);
+        __Pyx_GOTREF(__pyx_t_7);
+        PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_2);
+        __Pyx_GIVEREF(__pyx_t_2);
         PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_5);
         __Pyx_GIVEREF(__pyx_t_5);
-        __pyx_t_1 = 0;
+        __pyx_t_2 = 0;
         __pyx_t_5 = 0;
-        __pyx_t_5 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Call(__pyx_t_4, __pyx_t_7, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1011; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+        __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
         goto __pyx_L10;
       }
       __pyx_L10:;
 
-      /* "cvcf.pyx":1012
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1012
  *             for c in ref:
  *                 if c not in "ACGTN": self.error(str(record),self.UNKNOWN_CHAR_IN_REF)
  *                 if "N" in ref: ref = get_sequence(chrom,             # <<<<<<<<<<<<<<
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         __Pyx_GOTREF(__pyx_t_5);
 
-        /* "cvcf.pyx":1014
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1014
  *                 if "N" in ref: ref = get_sequence(chrom,
  *                                                   pos,
  *                                                   pos+len(ref),             # <<<<<<<<<<<<<<
@@ -20322,7 +20559,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __Pyx_GOTREF(__pyx_t_4);
         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-        /* "cvcf.pyx":1015
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1015
  *                                                   pos,
  *                                                   pos+len(ref),
  *                                                   self._reference)             # <<<<<<<<<<<<<<
@@ -20331,24 +20568,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
         __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1015; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __pyx_t_2 = PyTuple_New(4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(__pyx_v_chrom);
-        PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_chrom);
+        PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_chrom);
         __Pyx_GIVEREF(__pyx_v_chrom);
         __Pyx_INCREF(__pyx_v_pos);
-        PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_pos);
+        PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_v_pos);
         __Pyx_GIVEREF(__pyx_v_pos);
-        PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_t_4);
+        PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
-        PyTuple_SET_ITEM(__pyx_t_1, 3, __pyx_t_7);
+        PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_7);
         __Pyx_GIVEREF(__pyx_t_7);
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-        __pyx_t_7 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_7 = PyObject_Call(__pyx_t_5, __pyx_t_2, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1012; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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         __Pyx_DECREF(__pyx_v_ref);
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@@ -20356,101 +20593,101 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       }
       __pyx_L11:;
     }
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-  /* "cvcf.pyx":1018
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1018
  * 
  *         # make sure reference is sane
  *         if self._reference:             # <<<<<<<<<<<<<<
  *             left = max(0,self.pos-100)
  *             faref_leftflank = get_sequence(chrom,left,self.pos+len(ref),self._reference)
  */
-  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1018; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":1019
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1019
  *         # make sure reference is sane
  *         if self._reference:
  *             left = max(0,self.pos-100)             # <<<<<<<<<<<<<<
  *             faref_leftflank = get_sequence(chrom,left,self.pos+len(ref),self._reference)
  *             faref = faref_leftflank[pos-left:]
  */
-    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__pos); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
-    __pyx_t_7 = PyNumber_Subtract(__pyx_t_2, __pyx_int_100); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__pos); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_7 = PyNumber_Subtract(__pyx_t_1, __pyx_int_100); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-    __Pyx_GOTREF(__pyx_t_1);
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+    __pyx_t_2 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_5 = PyObject_RichCompare(__pyx_t_7, __pyx_t_2, Py_GT); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     if (__pyx_t_3) {
       __Pyx_INCREF(__pyx_t_7);
-      __pyx_t_2 = __pyx_t_7;
+      __pyx_t_1 = __pyx_t_7;
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       __pyx_t_5 = PyInt_FromLong(__pyx_t_9); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1019; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = __pyx_t_5;
+      __pyx_t_1 = __pyx_t_5;
       __pyx_t_5 = 0;
     }
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-    __Pyx_INCREF(__pyx_t_2);
+    __Pyx_INCREF(__pyx_t_1);
     __Pyx_DECREF(__pyx_v_left);
-    __pyx_v_left = __pyx_t_2;
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+    __pyx_v_left = __pyx_t_1;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-    /* "cvcf.pyx":1020
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1020
  *         if self._reference:
  *             left = max(0,self.pos-100)
  *             faref_leftflank = get_sequence(chrom,left,self.pos+len(ref),self._reference)             # <<<<<<<<<<<<<<
  *             faref = faref_leftflank[pos-left:]
  *             if faref != ref: self.error(str(record),self.WRONG_REF,"(reference is %s, VCF says %s)" % (faref,ref))
  */
-    __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_1);
     __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__pos); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_7);
     __pyx_t_6 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_5 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __pyx_t_1 = PyNumber_Add(__pyx_t_7, __pyx_t_5); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_2 = PyNumber_Add(__pyx_t_7, __pyx_t_5); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
     __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
     __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __pyx_t_7 = PyTuple_New(4); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+    __Pyx_GOTREF(__pyx_t_7);
     __Pyx_INCREF(__pyx_v_chrom);
     PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_v_chrom);
     __Pyx_GIVEREF(__pyx_v_chrom);
     __Pyx_INCREF(__pyx_v_left);
     PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_v_left);
     __Pyx_GIVEREF(__pyx_v_left);
-    PyTuple_SET_ITEM(__pyx_t_7, 2, __pyx_t_1);
-    __Pyx_GIVEREF(__pyx_t_1);
+    PyTuple_SET_ITEM(__pyx_t_7, 2, __pyx_t_2);
+    __Pyx_GIVEREF(__pyx_t_2);
     PyTuple_SET_ITEM(__pyx_t_7, 3, __pyx_t_5);
     __Pyx_GIVEREF(__pyx_t_5);
-    __pyx_t_1 = 0;
+    __pyx_t_2 = 0;
     __pyx_t_5 = 0;
-    __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_5 = PyObject_Call(__pyx_t_1, __pyx_t_7, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1020; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
-    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-    __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
     __Pyx_DECREF(__pyx_v_faref_leftflank);
     __pyx_v_faref_leftflank = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":1021
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1021
  *             left = max(0,self.pos-100)
  *             faref_leftflank = get_sequence(chrom,left,self.pos+len(ref),self._reference)
  *             faref = faref_leftflank[pos-left:]             # <<<<<<<<<<<<<<
@@ -20461,13 +20698,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
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     __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_5); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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+    __pyx_t_5 = PySequence_GetSlice(__pyx_v_faref_leftflank, __pyx_t_6, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1021; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
     __Pyx_DECREF(__pyx_v_faref);
     __pyx_v_faref = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":1022
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1022
  *             faref_leftflank = get_sequence(chrom,left,self.pos+len(ref),self._reference)
  *             faref = faref_leftflank[pos-left:]
  *             if faref != ref: self.error(str(record),self.WRONG_REF,"(reference is %s, VCF says %s)" % (faref,ref))             # <<<<<<<<<<<<<<
@@ -20482,47 +20719,47 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
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       __Pyx_GOTREF(__pyx_t_5);
       __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+      __Pyx_GOTREF(__pyx_t_7);
       __Pyx_INCREF(__pyx_v_record);
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-      __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_INCREF(__pyx_v_faref);
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       __Pyx_INCREF(__pyx_v_ref);
-      PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_v_ref);
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       __Pyx_GIVEREF(__pyx_v_ref);
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+      __pyx_t_4 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_64), __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
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-      __Pyx_GIVEREF(__pyx_t_2);
-      PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_7);
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+      __Pyx_GIVEREF(__pyx_t_1);
+      PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_7);
       __Pyx_GIVEREF(__pyx_t_7);
-      PyTuple_SET_ITEM(__pyx_t_1, 2, ((PyObject *)__pyx_t_4));
+      PyTuple_SET_ITEM(__pyx_t_2, 2, ((PyObject *)__pyx_t_4));
       __Pyx_GIVEREF(((PyObject *)__pyx_t_4));
-      __pyx_t_2 = 0;
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-      __pyx_t_4 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_5, __pyx_t_2, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1022; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-    /* "cvcf.pyx":1023
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1023
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-  /* "cvcf.pyx":1026
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1026
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-    __pyx_t_6 = 0; __pyx_t_1 = __pyx_t_4; __Pyx_INCREF(__pyx_t_1);
+    __pyx_t_6 = 0; __pyx_t_2 = __pyx_t_4; __Pyx_INCREF(__pyx_t_2);
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-    __pyx_t_6 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_6 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_4); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+    if (likely(PyList_CheckExact(__pyx_t_2))) {
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+    } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_4 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
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-      __pyx_t_4 = PyIter_Next(__pyx_t_1);
+      __pyx_t_4 = PyIter_Next(__pyx_t_2);
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         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1026; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    /* "cvcf.pyx":1027
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1027
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  *         for f in record.format:
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       __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+      __Pyx_GOTREF(__pyx_t_5);
       __Pyx_INCREF(__pyx_v_record);
       PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_record);
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+      __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_5, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__FORMAT_NOT_DEFINED); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_2 = PyTuple_New(3); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_7);
+      __pyx_t_1 = PyTuple_New(3); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_7);
       __Pyx_GIVEREF(__pyx_t_7);
-      PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
+      PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
       __Pyx_INCREF(__pyx_v_f);
-      PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_v_f);
+      PyTuple_SET_ITEM(__pyx_t_1, 2, __pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
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+      __pyx_t_5 = PyObject_Call(__pyx_t_4, __pyx_t_1, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1027; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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-  /* "cvcf.pyx":1030
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1030
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-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__filter); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_record, __pyx_n_s__filter); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  if (PyList_CheckExact(__pyx_t_2) || PyTuple_CheckExact(__pyx_t_2)) {
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+    __pyx_t_6 = -1; __pyx_t_5 = PyObject_GetIter(__pyx_t_2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_5);
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-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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     if (likely(PyList_CheckExact(__pyx_t_5))) {
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-      __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++;
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_2); __pyx_t_6++;
     } else if (likely(PyTuple_CheckExact(__pyx_t_5))) {
       if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_5)) break;
-      __pyx_t_1 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++;
+      __pyx_t_2 = PyTuple_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_2); __pyx_t_6++;
     } else {
-      __pyx_t_1 = PyIter_Next(__pyx_t_5);
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+      __pyx_t_2 = PyIter_Next(__pyx_t_5);
+      if (!__pyx_t_2) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1030; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
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-      __Pyx_GOTREF(__pyx_t_1);
+      __Pyx_GOTREF(__pyx_t_2);
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-    __pyx_v_f = __pyx_t_1;
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+    __pyx_v_f = __pyx_t_2;
+    __pyx_t_2 = 0;
 
-    /* "cvcf.pyx":1031
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1031
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  *         for f in record.filter:
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-    __Pyx_GOTREF(__pyx_t_1);
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-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___filter); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_3 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_t_2, __pyx_v_f))); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     if (__pyx_t_3) {
-      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
       __Pyx_INCREF(__pyx_v_record);
-      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_record);
+      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_record);
       __Pyx_GIVEREF(__pyx_v_record);
-      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_2), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_1, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__FILTER_NOT_DEFINED); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__FILTER_NOT_DEFINED); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_7 = PyTuple_New(3); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_7));
+      __Pyx_GOTREF(__pyx_t_7);
       PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_4);
       __Pyx_GIVEREF(__pyx_t_4);
-      PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_2);
-      __Pyx_GIVEREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_1);
+      __Pyx_GIVEREF(__pyx_t_1);
       __Pyx_INCREF(__pyx_v_f);
       PyTuple_SET_ITEM(__pyx_t_7, 2, __pyx_v_f);
       __Pyx_GIVEREF(__pyx_v_f);
       __pyx_t_4 = 0;
-      __pyx_t_2 = 0;
-      __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_7), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_7)); __pyx_t_7 = 0;
+      __pyx_t_1 = 0;
+      __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_7, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1031; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       goto __pyx_L19;
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     __pyx_L19:;
   }
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "cvcf.pyx":1034
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1034
  * 
  *         # convert v3.3 alleles
  *         if self._version == 33:             # <<<<<<<<<<<<<<
@@ -20707,14 +20944,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
   __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___version); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __pyx_t_2 = PyObject_RichCompare(__pyx_t_5, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_1 = PyObject_RichCompare(__pyx_t_5, __pyx_int_33, Py_EQ); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1034; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
   if (__pyx_t_3) {
 
-    /* "cvcf.pyx":1035
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1035
  *         # convert v3.3 alleles
  *         if self._version == 33:
  *             if len(ref) != 1: self.error(str(record),self.V33_BAD_REF)             # <<<<<<<<<<<<<<
@@ -20724,36 +20961,36 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_t_6 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __pyx_t_3 = (__pyx_t_6 != 1);
     if (__pyx_t_3) {
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
       __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+      __Pyx_GOTREF(__pyx_t_5);
       __Pyx_INCREF(__pyx_v_record);
       PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_v_record);
       __Pyx_GIVEREF(__pyx_v_record);
-      __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_5, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_7);
-      __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_REF); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-      PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_7);
+      __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_7);
       __Pyx_GIVEREF(__pyx_t_7);
-      PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_5);
+      PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_5);
       __Pyx_GIVEREF(__pyx_t_5);
       __pyx_t_7 = 0;
       __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_5 = PyObject_Call(__pyx_t_1, __pyx_t_2, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1035; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       goto __pyx_L21;
     }
     __pyx_L21:;
 
-    /* "cvcf.pyx":1036
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1036
  *         if self._version == 33:
  *             if len(ref) != 1: self.error(str(record),self.V33_BAD_REF)
  *             newalts = []             # <<<<<<<<<<<<<<
@@ -20766,7 +21003,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_v_newalts = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":1037
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1037
  *             if len(ref) != 1: self.error(str(record),self.V33_BAD_REF)
  *             newalts = []
  *             have_deletions = False             # <<<<<<<<<<<<<<
@@ -20775,25 +21012,26 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
     __pyx_v_have_deletions = 0;
 
-    /* "cvcf.pyx":1038
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1038
  *             newalts = []
  *             have_deletions = False
  *             for a in alt:             # <<<<<<<<<<<<<<
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
  */
-    if (unlikely(__pyx_v_alt == Py_None)) {
-      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+    if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+      __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+    } else {
+      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1038; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
     for (;;) {
       if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
-      __pyx_t_1 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++;
+      __pyx_t_2 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_2); __pyx_t_6++;
       __Pyx_DECREF(__pyx_v_a);
-      __pyx_v_a = __pyx_t_1;
-      __pyx_t_1 = 0;
+      __pyx_v_a = __pyx_t_2;
+      __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":1039
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1039
  *             have_deletions = False
  *             for a in alt:
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference             # <<<<<<<<<<<<<<
@@ -20803,69 +21041,81 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       __pyx_t_8 = PyObject_Length(__pyx_v_a); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __pyx_t_3 = (__pyx_t_8 == 1);
       if (__pyx_t_3) {
-        __pyx_t_1 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_2 = PyNumber_Add(__pyx_v_a, __pyx_t_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_2);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __pyx_t_1 = PyNumber_Add(__pyx_v_a, __pyx_t_2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1039; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_v_a);
-        __pyx_v_a = __pyx_t_2;
-        __pyx_t_2 = 0;
+        __pyx_v_a = __pyx_t_1;
+        __pyx_t_1 = 0;
         goto __pyx_L24;
       }
 
-      /* "cvcf.pyx":1040
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1040
  *             for a in alt:
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference             # <<<<<<<<<<<<<<
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True
  */
-      __pyx_t_2 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_2);
-      __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_124), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_1 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_1);
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+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_INCREF(((PyObject *)__pyx_n_s__I));
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+      __Pyx_GIVEREF(((PyObject *)__pyx_n_s__I));
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+      __Pyx_GOTREF(__pyx_t_7);
       __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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       if (__pyx_t_3) {
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-        __Pyx_GOTREF(__pyx_t_2);
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         __Pyx_GOTREF(__pyx_t_7);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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+        __pyx_t_2 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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         __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
         __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_2 = PySequence_GetSlice(__pyx_v_ref, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
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+        __Pyx_GOTREF(__pyx_t_7);
+        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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         __Pyx_DECREF(__pyx_v_a);
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         goto __pyx_L24;
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-      /* "cvcf.pyx":1041
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1041
  *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
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+      __pyx_t_7 = PyObject_GetAttr(__pyx_v_a, __pyx_n_s__startswith); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_7);
+      __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_2);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_INCREF(((PyObject *)__pyx_n_s__D));
+      PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s__D));
+      __Pyx_GIVEREF(((PyObject *)__pyx_n_s__D));
+      __pyx_t_1 = PyObject_Call(__pyx_t_7, __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_1);
+      __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
       __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1041; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
       if (__pyx_t_3) {
 
-        /* "cvcf.pyx":1042
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1042
  *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True             # <<<<<<<<<<<<<<
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         __pyx_v_have_deletions = 1;
 
-        /* "cvcf.pyx":1043
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1043
  *                 elif a.startswith('D'): # allow D<seq> and D<num>
  *                     have_deletions = True
  *                     try:             # <<<<<<<<<<<<<<
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           __Pyx_XGOTREF(__pyx_save_exc_tb);
           /*try:*/ {
 
-            /* "cvcf.pyx":1044
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1044
  *                     have_deletions = True
  *                     try:
  *                         l = int(a[1:])          # throws ValueError if sequence             # <<<<<<<<<<<<<<
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-            __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-            __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-            PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_2);
-            __Pyx_GIVEREF(__pyx_t_2);
-            __pyx_t_2 = 0;
-            __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)(&PyInt_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __pyx_t_1 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __Pyx_GOTREF(__pyx_t_1);
+            __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
             __Pyx_GOTREF(__pyx_t_2);
-            __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+            PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1);
+            __Pyx_GIVEREF(__pyx_t_1);
+            __pyx_t_1 = 0;
+            __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)&PyInt_Type)), __pyx_t_2, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1044; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __Pyx_GOTREF(__pyx_t_1);
+            __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
             __Pyx_DECREF(__pyx_v_l);
-            __pyx_v_l = __pyx_t_2;
-            __pyx_t_2 = 0;
+            __pyx_v_l = __pyx_t_1;
+            __pyx_t_1 = 0;
 
-            /* "cvcf.pyx":1045
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1045
  *                     try:
  *                         l = int(a[1:])          # throws ValueError if sequence
  *                         if len(ref) < l:        # add to reference if necessary             # <<<<<<<<<<<<<<
@@ -20918,57 +21168,57 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                             ref += addns
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             __pyx_t_8 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-            __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-            __Pyx_GOTREF(__pyx_t_2);
-            __pyx_t_1 = PyObject_RichCompare(__pyx_t_2, __pyx_v_l, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
             __Pyx_GOTREF(__pyx_t_1);
-            __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+            __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_v_l, Py_LT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __Pyx_GOTREF(__pyx_t_2);
             __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+            __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1045; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
             if (__pyx_t_3) {
 
-              /* "cvcf.pyx":1046
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1046
  *                         l = int(a[1:])          # throws ValueError if sequence
  *                         if len(ref) < l:        # add to reference if necessary
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  *                             ref += addns
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-              __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-              __Pyx_GOTREF(__pyx_t_1);
-              __pyx_t_8 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-              __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
               __Pyx_GOTREF(__pyx_t_2);
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+              __pyx_t_8 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_8); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              __Pyx_GOTREF(__pyx_t_1);
+              __pyx_t_7 = PyNumber_Add(__pyx_v_pos, __pyx_t_1); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
               __Pyx_GOTREF(__pyx_t_7);
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-              __Pyx_GOTREF(__pyx_t_2);
+              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+              __pyx_t_1 = PyNumber_Add(__pyx_v_pos, __pyx_v_l); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              __Pyx_GOTREF(__pyx_t_1);
               __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
               __Pyx_GOTREF(__pyx_t_4);
               __pyx_t_10 = PyTuple_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+              __Pyx_GOTREF(__pyx_t_10);
               __Pyx_INCREF(__pyx_v_chrom);
               PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_chrom);
               __Pyx_GIVEREF(__pyx_v_chrom);
               PyTuple_SET_ITEM(__pyx_t_10, 1, __pyx_t_7);
               __Pyx_GIVEREF(__pyx_t_7);
-              PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_t_2);
-              __Pyx_GIVEREF(__pyx_t_2);
+              PyTuple_SET_ITEM(__pyx_t_10, 2, __pyx_t_1);
+              __Pyx_GIVEREF(__pyx_t_1);
               PyTuple_SET_ITEM(__pyx_t_10, 3, __pyx_t_4);
               __Pyx_GIVEREF(__pyx_t_4);
               __pyx_t_7 = 0;
-              __pyx_t_2 = 0;
+              __pyx_t_1 = 0;
               __pyx_t_4 = 0;
-              __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              __pyx_t_4 = PyObject_Call(__pyx_t_2, __pyx_t_10, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1046; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
               __Pyx_GOTREF(__pyx_t_4);
-              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+              __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               __Pyx_DECREF(__pyx_v_addns);
               __pyx_v_addns = __pyx_t_4;
               __pyx_t_4 = 0;
 
-              /* "cvcf.pyx":1047
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1047
  *                         if len(ref) < l:        # add to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
  *                             ref += addns             # <<<<<<<<<<<<<<
@@ -20981,7 +21231,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
               __pyx_v_ref = __pyx_t_4;
               __pyx_t_4 = 0;
 
-              /* "cvcf.pyx":1048
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1048
  *                             addns = get_sequence(chrom,pos+len(ref),pos+l,self._reference)
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns             # <<<<<<<<<<<<<<
@@ -20990,25 +21240,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
               __Pyx_INCREF(__pyx_int_0);
               __pyx_t_4 = __pyx_int_0;
-              __pyx_t_8 = 0; __pyx_t_10 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_10);
+              if (likely(((PyObject *)__pyx_v_newalts) != Py_None)) {
+                __pyx_t_8 = 0; __pyx_t_10 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_10);
+              } else {
+                PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+              }
               for (;;) {
                 if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_10)) break;
-                __pyx_t_1 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_8); __Pyx_INCREF(__pyx_t_1); __pyx_t_8++;
+                __pyx_t_2 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_8); __Pyx_INCREF(__pyx_t_2); __pyx_t_8++;
                 __Pyx_DECREF(__pyx_v_na);
-                __pyx_v_na = __pyx_t_1;
-                __pyx_t_1 = 0;
+                __pyx_v_na = __pyx_t_2;
+                __pyx_t_2 = 0;
                 __Pyx_INCREF(__pyx_t_4);
                 __Pyx_DECREF(__pyx_v_i);
                 __pyx_v_i = __pyx_t_4;
-                __pyx_t_1 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-                __Pyx_GOTREF(__pyx_t_1);
+                __pyx_t_2 = PyNumber_Add(__pyx_t_4, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+                __Pyx_GOTREF(__pyx_t_2);
                 __Pyx_DECREF(__pyx_t_4);
-                __pyx_t_4 = __pyx_t_1;
-                __pyx_t_1 = 0;
-                __pyx_t_1 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-                __Pyx_GOTREF(__pyx_t_1);
-                if (PyObject_SetItem(((PyObject *)__pyx_v_newalts), __pyx_v_i, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+                __pyx_t_4 = __pyx_t_2;
+                __pyx_t_2 = 0;
+                __pyx_t_2 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+                __Pyx_GOTREF(__pyx_t_2);
+                if (PyObject_SetItem(((PyObject *)__pyx_v_newalts), __pyx_v_i, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1048; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
               }
               __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
               __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
@@ -21016,7 +21270,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
             }
             __pyx_L33:;
 
-            /* "cvcf.pyx":1049
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1049
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  *                         a = ref[l:]             # new deletion, deleting pos...pos+l             # <<<<<<<<<<<<<<
@@ -21024,7 +21278,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                         s = a[1:]
  */
             __pyx_t_8 = __Pyx_PyIndex_AsSsize_t(__pyx_v_l); if (unlikely((__pyx_t_8 == (Py_ssize_t)-1) && PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1049; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
-            __pyx_t_4 = __Pyx_PySequence_GetSlice(__pyx_v_ref, __pyx_t_8, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1049; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
+            __pyx_t_4 = PySequence_GetSlice(__pyx_v_ref, __pyx_t_8, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1049; __pyx_clineno = __LINE__; goto __pyx_L25_error;}
             __Pyx_GOTREF(__pyx_t_4);
             __Pyx_DECREF(__pyx_v_a);
             __pyx_v_a = __pyx_t_4;
@@ -21036,12 +21290,12 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           goto __pyx_L32_try_end;
           __pyx_L25_error:;
           __Pyx_XDECREF(__pyx_t_7); __pyx_t_7 = 0;
-          __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
           __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
+          __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
           __Pyx_XDECREF(__pyx_t_10); __pyx_t_10 = 0;
           __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-          /* "cvcf.pyx":1050
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1050
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  *                         a = ref[l:]             # new deletion, deleting pos...pos+l
  *                     except ValueError:             # <<<<<<<<<<<<<<
@@ -21051,25 +21305,25 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           __pyx_t_11 = PyErr_ExceptionMatches(__pyx_builtin_ValueError);
           if (__pyx_t_11) {
             __Pyx_AddTraceback("cvcf.VCF.validate");
-            if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_10, &__pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+            if (__Pyx_GetException(&__pyx_t_4, &__pyx_t_10, &__pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1050; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
             __Pyx_GOTREF(__pyx_t_4);
             __Pyx_GOTREF(__pyx_t_10);
-            __Pyx_GOTREF(__pyx_t_1);
+            __Pyx_GOTREF(__pyx_t_2);
 
-            /* "cvcf.pyx":1051
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1051
  *                         a = ref[l:]             # new deletion, deleting pos...pos+l
  *                     except ValueError:
  *                         s = a[1:]             # <<<<<<<<<<<<<<
  *                         if len(ref) < len(s):   # add Ns to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)
  */
-            __pyx_t_2 = __Pyx_PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-            __Pyx_GOTREF(__pyx_t_2);
+            __pyx_t_1 = PySequence_GetSlice(__pyx_v_a, 1, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1051; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+            __Pyx_GOTREF(__pyx_t_1);
             __Pyx_DECREF(__pyx_v_s);
-            __pyx_v_s = __pyx_t_2;
-            __pyx_t_2 = 0;
+            __pyx_v_s = __pyx_t_1;
+            __pyx_t_1 = 0;
 
-            /* "cvcf.pyx":1052
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1052
  *                     except ValueError:
  *                         s = a[1:]
  *                         if len(ref) < len(s):   # add Ns to reference if necessary             # <<<<<<<<<<<<<<
@@ -21081,15 +21335,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
             __pyx_t_3 = (__pyx_t_8 < __pyx_t_12);
             if (__pyx_t_3) {
 
-              /* "cvcf.pyx":1053
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1053
  *                         s = a[1:]
  *                         if len(ref) < len(s):   # add Ns to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)             # <<<<<<<<<<<<<<
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
  *                                 self.error(str(record),self.V33_UNMATCHED_DELETION,
  */
-              __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-              __Pyx_GOTREF(__pyx_t_2);
+              __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+              __Pyx_GOTREF(__pyx_t_1);
               __pyx_t_12 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
               __pyx_t_7 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
               __Pyx_GOTREF(__pyx_t_7);
@@ -21105,7 +21359,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
               __pyx_t_7 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
               __Pyx_GOTREF(__pyx_t_7);
               __pyx_t_15 = PyTuple_New(4); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_15));
+              __Pyx_GOTREF(__pyx_t_15);
               __Pyx_INCREF(__pyx_v_chrom);
               PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_v_chrom);
               __Pyx_GIVEREF(__pyx_v_chrom);
@@ -21118,15 +21372,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
               __pyx_t_13 = 0;
               __pyx_t_14 = 0;
               __pyx_t_7 = 0;
-              __pyx_t_7 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+              __pyx_t_7 = PyObject_Call(__pyx_t_1, __pyx_t_15, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1053; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
               __Pyx_GOTREF(__pyx_t_7);
-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
+              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
               __Pyx_DECREF(__pyx_v_addns);
               __pyx_v_addns = __pyx_t_7;
               __pyx_t_7 = 0;
 
-              /* "cvcf.pyx":1054
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1054
  *                         if len(ref) < len(s):   # add Ns to reference if necessary
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):             # <<<<<<<<<<<<<<
@@ -21136,56 +21390,56 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
               __pyx_t_7 = PyObject_GetAttr(__pyx_v_s, __pyx_n_s__endswith); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
               __Pyx_GOTREF(__pyx_t_7);
               __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-              __Pyx_GOTREF(((PyObject *)__pyx_t_15));
+              __Pyx_GOTREF(__pyx_t_15);
               __Pyx_INCREF(__pyx_v_addns);
               PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_v_addns);
               __Pyx_GIVEREF(__pyx_v_addns);
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-              __Pyx_GOTREF(__pyx_t_2);
+              __pyx_t_1 = PyObject_Call(__pyx_t_7, __pyx_t_15, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+              __Pyx_GOTREF(__pyx_t_1);
               __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
-              __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
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-              __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+              __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+              __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+              __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
               __pyx_t_16 = (!__pyx_t_3);
               if (__pyx_t_16) {
                 __pyx_t_12 = PyObject_Length(__pyx_v_addns); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(__pyx_t_2);
-                __pyx_t_15 = PyNumber_Multiply(((PyObject *)__pyx_n_s__N), __pyx_t_2); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __pyx_t_1 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
+                __pyx_t_15 = PyNumber_Multiply(((PyObject *)__pyx_n_s__N), __pyx_t_1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(((PyObject *)__pyx_t_15));
-                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-                __Pyx_GOTREF(__pyx_t_2);
+                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+                __pyx_t_1 = PyObject_RichCompare(__pyx_v_addns, ((PyObject *)__pyx_t_15), Py_NE); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-                __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1054; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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               } else {
                 __pyx_t_17 = __pyx_t_16;
               }
               if (__pyx_t_17) {
 
-                /* "cvcf.pyx":1055
+                /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1055
  *                             addns = get_sequence(chrom,pos+len(ref),pos+len(s),self._reference)
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
  *                                 self.error(str(record),self.V33_UNMATCHED_DELETION,             # <<<<<<<<<<<<<<
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns
  */
-                __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(__pyx_t_2);
+                __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
                 __pyx_t_15 = PyTuple_New(1); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_15));
+                __Pyx_GOTREF(__pyx_t_15);
                 __Pyx_INCREF(__pyx_v_record);
                 PyTuple_SET_ITEM(__pyx_t_15, 0, __pyx_v_record);
                 __Pyx_GIVEREF(__pyx_v_record);
-                __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_15), NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __pyx_t_7 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_15, NULL); if (unlikely(!__pyx_t_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(__pyx_t_7);
-                __Pyx_DECREF(((PyObject *)__pyx_t_15)); __pyx_t_15 = 0;
-                __pyx_t_15 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_111); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_DECREF(__pyx_t_15); __pyx_t_15 = 0;
+                __pyx_t_15 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_65); if (unlikely(!__pyx_t_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(__pyx_t_15);
 
-                /* "cvcf.pyx":1056
+                /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1056
  *                             if not s.endswith(addns) and addns != 'N'*len(addns):
  *                                 self.error(str(record),self.V33_UNMATCHED_DELETION,
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))             # <<<<<<<<<<<<<<
@@ -21203,7 +21457,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
                 __pyx_t_13 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(__pyx_t_13);
                 __pyx_t_19 = PyTuple_New(4); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_19));
+                __Pyx_GOTREF(__pyx_t_19);
                 __Pyx_INCREF(__pyx_v_chrom);
                 PyTuple_SET_ITEM(__pyx_t_19, 0, __pyx_v_chrom);
                 __Pyx_GIVEREF(__pyx_v_chrom);
@@ -21216,23 +21470,23 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
                 __Pyx_GIVEREF(__pyx_t_13);
                 __pyx_t_18 = 0;
                 __pyx_t_13 = 0;
-                __pyx_t_13 = PyObject_Call(__pyx_t_14, ((PyObject *)__pyx_t_19), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __pyx_t_13 = PyObject_Call(__pyx_t_14, __pyx_t_19, NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(__pyx_t_13);
                 __Pyx_DECREF(__pyx_t_14); __pyx_t_14 = 0;
-                __Pyx_DECREF(((PyObject *)__pyx_t_19)); __pyx_t_19 = 0;
+                __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
                 __pyx_t_19 = PyTuple_New(2); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_19));
+                __Pyx_GOTREF(__pyx_t_19);
                 __Pyx_INCREF(__pyx_v_a);
                 PyTuple_SET_ITEM(__pyx_t_19, 0, __pyx_v_a);
                 __Pyx_GIVEREF(__pyx_v_a);
                 PyTuple_SET_ITEM(__pyx_t_19, 1, __pyx_t_13);
                 __Pyx_GIVEREF(__pyx_t_13);
                 __pyx_t_13 = 0;
-                __pyx_t_13 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_112), ((PyObject *)__pyx_t_19)); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __pyx_t_13 = PyNumber_Remainder(((PyObject *)__pyx_kp_s_66), __pyx_t_19); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1056; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(((PyObject *)__pyx_t_13));
-                __Pyx_DECREF(((PyObject *)__pyx_t_19)); __pyx_t_19 = 0;
+                __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
                 __pyx_t_19 = PyTuple_New(3); if (unlikely(!__pyx_t_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(((PyObject *)__pyx_t_19));
+                __Pyx_GOTREF(__pyx_t_19);
                 PyTuple_SET_ITEM(__pyx_t_19, 0, __pyx_t_7);
                 __Pyx_GIVEREF(__pyx_t_7);
                 PyTuple_SET_ITEM(__pyx_t_19, 1, __pyx_t_15);
@@ -21242,16 +21496,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
                 __pyx_t_7 = 0;
                 __pyx_t_15 = 0;
                 __pyx_t_13 = 0;
-                __pyx_t_13 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_t_19), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __pyx_t_13 = PyObject_Call(__pyx_t_1, __pyx_t_19, NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1055; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
                 __Pyx_GOTREF(__pyx_t_13);
-                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-                __Pyx_DECREF(((PyObject *)__pyx_t_19)); __pyx_t_19 = 0;
+                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+                __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
                 __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
                 goto __pyx_L39;
               }
               __pyx_L39:;
 
-              /* "cvcf.pyx":1057
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1057
  *                                 self.error(str(record),self.V33_UNMATCHED_DELETION,
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns             # <<<<<<<<<<<<<<
@@ -21264,7 +21518,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
               __pyx_v_ref = __pyx_t_13;
               __pyx_t_13 = 0;
 
-              /* "cvcf.pyx":1058
+              /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1058
  *                                            "(deletion is %s, reference is %s)" % (a,get_sequence(chrom,pos,pos+len(s),self._reference)))
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns             # <<<<<<<<<<<<<<
@@ -21273,25 +21527,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
               __Pyx_INCREF(__pyx_int_0);
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-              __pyx_t_12 = 0; __pyx_t_19 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_19);
+              if (likely(((PyObject *)__pyx_v_newalts) != Py_None)) {
+                __pyx_t_12 = 0; __pyx_t_19 = ((PyObject *)__pyx_v_newalts); __Pyx_INCREF(__pyx_t_19);
+              } else {
+                PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+              }
               for (;;) {
                 if (__pyx_t_12 >= PyList_GET_SIZE(__pyx_t_19)) break;
-                __pyx_t_2 = PyList_GET_ITEM(__pyx_t_19, __pyx_t_12); __Pyx_INCREF(__pyx_t_2); __pyx_t_12++;
+                __pyx_t_1 = PyList_GET_ITEM(__pyx_t_19, __pyx_t_12); __Pyx_INCREF(__pyx_t_1); __pyx_t_12++;
                 __Pyx_DECREF(__pyx_v_na);
-                __pyx_v_na = __pyx_t_2;
-                __pyx_t_2 = 0;
+                __pyx_v_na = __pyx_t_1;
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                 __Pyx_INCREF(__pyx_t_13);
                 __Pyx_DECREF(__pyx_v_i);
                 __pyx_v_i = __pyx_t_13;
-                __pyx_t_2 = PyNumber_Add(__pyx_t_13, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(__pyx_t_2);
+                __pyx_t_1 = PyNumber_Add(__pyx_t_13, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
                 __Pyx_DECREF(__pyx_t_13);
-                __pyx_t_13 = __pyx_t_2;
-                __pyx_t_2 = 0;
-                __pyx_t_2 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-                __Pyx_GOTREF(__pyx_t_2);
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-                __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+                __pyx_t_13 = __pyx_t_1;
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+                __pyx_t_1 = PyNumber_Add(__pyx_v_na, __pyx_v_addns); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_GOTREF(__pyx_t_1);
+                if (PyObject_SetItem(((PyObject *)__pyx_v_newalts), __pyx_v_i, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1058; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+                __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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               __Pyx_DECREF(__pyx_t_19); __pyx_t_19 = 0;
               __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
@@ -21299,7 +21557,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
             }
             __pyx_L38:;
 
-            /* "cvcf.pyx":1059
+            /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1059
  *                             ref += addns
  *                             for i,na in enumerate(newalts): newalts[i] = na+addns
  *                         a = ref[len(s):]        # new deletion, deleting from pos             # <<<<<<<<<<<<<<
@@ -21307,14 +21565,14 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                     self.error(str(record),self.V33_BAD_ALLELE)
  */
             __pyx_t_12 = PyObject_Length(__pyx_v_s); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
-            __pyx_t_13 = __Pyx_PySequence_GetSlice(__pyx_v_ref, __pyx_t_12, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
+            __pyx_t_13 = PySequence_GetSlice(__pyx_v_ref, __pyx_t_12, PY_SSIZE_T_MAX); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1059; __pyx_clineno = __LINE__; goto __pyx_L27_except_error;}
             __Pyx_GOTREF(__pyx_t_13);
             __Pyx_DECREF(__pyx_v_a);
             __pyx_v_a = __pyx_t_13;
             __pyx_t_13 = 0;
             __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
             __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-            __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+            __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
             goto __pyx_L26_exception_handled;
           }
           __pyx_L27_except_error:;
@@ -21334,42 +21592,42 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       }
       /*else*/ {
 
-        /* "cvcf.pyx":1061
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1061
  *                         a = ref[len(s):]        # new deletion, deleting from pos
  *                 else:
  *                     self.error(str(record),self.V33_BAD_ALLELE)             # <<<<<<<<<<<<<<
  *                 newalts.append(a)
  *             alt = newalts
  */
-        __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+        __Pyx_GOTREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_record);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_record);
         __Pyx_GIVEREF(__pyx_v_record);
-        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_10, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V33_BAD_ALLELE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __pyx_t_13 = PyTuple_New(2); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_13));
+        __Pyx_GOTREF(__pyx_t_13);
         PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
         PyTuple_SET_ITEM(__pyx_t_13, 1, __pyx_t_10);
         __Pyx_GIVEREF(__pyx_t_10);
         __pyx_t_4 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_2, __pyx_t_13, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1061; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       }
       __pyx_L24:;
 
-      /* "cvcf.pyx":1062
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1062
  *                 else:
  *                     self.error(str(record),self.V33_BAD_ALLELE)
  *                 newalts.append(a)             # <<<<<<<<<<<<<<
@@ -21379,11 +21637,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       if (unlikely(__pyx_v_newalts == Py_None)) {
         PyErr_SetString(PyExc_AttributeError, "'NoneType' object has no attribute 'append'"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
       }
-      __pyx_t_11 = PyList_Append(__pyx_v_newalts, __pyx_v_a); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_11 = PyList_Append(((PyObject *)__pyx_v_newalts), __pyx_v_a); if (unlikely(__pyx_t_11 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1062; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
     __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":1063
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1063
  *                     self.error(str(record),self.V33_BAD_ALLELE)
  *                 newalts.append(a)
  *             alt = newalts             # <<<<<<<<<<<<<<
@@ -21394,7 +21652,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __Pyx_DECREF(((PyObject *)__pyx_v_alt));
     __pyx_v_alt = __pyx_v_newalts;
 
-    /* "cvcf.pyx":1065
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1065
  *             alt = newalts
  *             # deletion alleles exist, add dummy 1st reference allele, and account for leading base
  *             if have_deletions:             # <<<<<<<<<<<<<<
@@ -21403,7 +21661,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
     if (__pyx_v_have_deletions) {
 
-      /* "cvcf.pyx":1066
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1066
  *             # deletion alleles exist, add dummy 1st reference allele, and account for leading base
  *             if have_deletions:
  *                 if pos == 0:             # <<<<<<<<<<<<<<
@@ -21416,7 +21674,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       if (__pyx_t_17) {
 
-        /* "cvcf.pyx":1068
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1068
  *                 if pos == 0:
  *                     # Petr Danacek's: we can't have a leading nucleotide at (1-based) position 1
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)             # <<<<<<<<<<<<<<
@@ -21434,16 +21692,16 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_6 = PyObject_Length(__pyx_v_ref); if (unlikely(__pyx_t_6 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_10 = PyInt_FromSsize_t(__pyx_t_6); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_1 = PyNumber_Add(__pyx_v_pos, __pyx_t_10); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyNumber_Add(__pyx_v_pos, __pyx_t_10); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __pyx_t_10 = PyNumber_Add(__pyx_t_1, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyNumber_Add(__pyx_t_2, __pyx_int_1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_4 = PyTuple_New(4); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_4));
+        __Pyx_GOTREF(__pyx_t_4);
         __Pyx_INCREF(__pyx_v_chrom);
         PyTuple_SET_ITEM(__pyx_t_4, 0, __pyx_v_chrom);
         __Pyx_GIVEREF(__pyx_v_chrom);
@@ -21451,45 +21709,46 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __Pyx_GIVEREF(__pyx_t_13);
         PyTuple_SET_ITEM(__pyx_t_4, 2, __pyx_t_10);
         __Pyx_GIVEREF(__pyx_t_10);
-        PyTuple_SET_ITEM(__pyx_t_4, 3, __pyx_t_1);
-        __Pyx_GIVEREF(__pyx_t_1);
+        PyTuple_SET_ITEM(__pyx_t_4, 3, __pyx_t_2);
+        __Pyx_GIVEREF(__pyx_t_2);
         __pyx_t_13 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_Call(__pyx_t_5, ((PyObject *)__pyx_t_4), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = 0;
+        __pyx_t_2 = PyObject_Call(__pyx_t_5, __pyx_t_4, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1068; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_4)); __pyx_t_4 = 0;
+        __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __Pyx_DECREF(__pyx_v_addn);
-        __pyx_v_addn = __pyx_t_1;
-        __pyx_t_1 = 0;
+        __pyx_v_addn = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":1069
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1069
  *                     # Petr Danacek's: we can't have a leading nucleotide at (1-based) position 1
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)
  *                     ref += addn             # <<<<<<<<<<<<<<
  *                     alt = [allele+addn for allele in alt]
  *                 else:
  */
-        __pyx_t_1 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addn); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyNumber_InPlaceAdd(__pyx_v_ref, __pyx_v_addn); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1069; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_v_ref);
-        __pyx_v_ref = __pyx_t_1;
-        __pyx_t_1 = 0;
+        __pyx_v_ref = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":1070
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1070
  *                     addn = get_sequence(chrom,pos+len(ref),pos+len(ref)+1,self._reference)
  *                     ref += addn
  *                     alt = [allele+addn for allele in alt]             # <<<<<<<<<<<<<<
  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  */
-        __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-        if (unlikely(__pyx_v_alt == Py_None)) {
-          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+        __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+        if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+          __pyx_t_6 = 0; __pyx_t_4 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_4);
+        } else {
+          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_6 = 0; __pyx_t_4 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_4);
         for (;;) {
           if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_4)) break;
           __pyx_t_5 = PyList_GET_ITEM(__pyx_t_4, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
@@ -21498,33 +21757,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           __pyx_t_5 = 0;
           __pyx_t_5 = PyNumber_Add(__pyx_v_allele, __pyx_v_addn); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_5);
-          if (unlikely(PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_5))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_5))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1070; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
         }
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_INCREF(((PyObject *)__pyx_t_1));
+        __Pyx_INCREF(((PyObject *)__pyx_t_2));
         __Pyx_DECREF(((PyObject *)__pyx_v_alt));
-        __pyx_v_alt = __pyx_t_1;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __pyx_v_alt = __pyx_t_2;
+        __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
         goto __pyx_L43;
       }
       /*else*/ {
 
-        /* "cvcf.pyx":1072
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1072
  *                     alt = [allele+addn for allele in alt]
  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)             # <<<<<<<<<<<<<<
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]
  */
-        __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__get_sequence); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __pyx_t_4 = PyNumber_Subtract(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_5 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
         __pyx_t_10 = PyTuple_New(4); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+        __Pyx_GOTREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_chrom);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_chrom);
         __Pyx_GIVEREF(__pyx_v_chrom);
@@ -21537,15 +21796,15 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __Pyx_GIVEREF(__pyx_t_5);
         __pyx_t_4 = 0;
         __pyx_t_5 = 0;
-        __pyx_t_5 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_Call(__pyx_t_2, __pyx_t_10, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1072; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __Pyx_DECREF(__pyx_v_addn);
         __pyx_v_addn = __pyx_t_5;
         __pyx_t_5 = 0;
 
-        /* "cvcf.pyx":1073
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1073
  *                 else:
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  *                     ref = addn + ref             # <<<<<<<<<<<<<<
@@ -21558,7 +21817,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_v_ref = __pyx_t_5;
         __pyx_t_5 = 0;
 
-        /* "cvcf.pyx":1074
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1074
  *                     addn = get_sequence(chrom,pos-1,pos,self._reference)
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]             # <<<<<<<<<<<<<<
@@ -21567,20 +21826,21 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
         __pyx_t_5 = PyList_New(0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-        if (unlikely(__pyx_v_alt == Py_None)) {
-          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+        if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+          __pyx_t_6 = 0; __pyx_t_10 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_10);
+        } else {
+          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_6 = 0; __pyx_t_10 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_10);
         for (;;) {
           if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_10)) break;
-          __pyx_t_1 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_1); __pyx_t_6++;
+          __pyx_t_2 = PyList_GET_ITEM(__pyx_t_10, __pyx_t_6); __Pyx_INCREF(__pyx_t_2); __pyx_t_6++;
           __Pyx_DECREF(__pyx_v_allele);
-          __pyx_v_allele = __pyx_t_1;
-          __pyx_t_1 = 0;
-          __pyx_t_1 = PyNumber_Add(__pyx_v_addn, __pyx_v_allele); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_GOTREF(__pyx_t_1);
-          if (unlikely(PyList_Append(__pyx_t_5, (PyObject*)__pyx_t_1))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+          __pyx_v_allele = __pyx_t_2;
+          __pyx_t_2 = 0;
+          __pyx_t_2 = PyNumber_Add(__pyx_v_addn, __pyx_v_allele); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_GOTREF(__pyx_t_2);
+          if (unlikely(PyList_Append(__pyx_t_5, (PyObject*)__pyx_t_2))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1074; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         }
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __Pyx_INCREF(((PyObject *)__pyx_t_5));
@@ -21588,7 +21848,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_v_alt = __pyx_t_5;
         __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
 
-        /* "cvcf.pyx":1075
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1075
  *                     ref = addn + ref
  *                     alt = [addn + allele for allele in alt]
  *                     pos -= 1             # <<<<<<<<<<<<<<
@@ -21609,17 +21869,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   }
   /*else*/ {
 
-    /* "cvcf.pyx":1078
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1078
  *         else:
  *             # format v4.0 -- just check for nucleotides
  *             for allele in alt:             # <<<<<<<<<<<<<<
  *                 if not alleleRegEx.match(allele):
  *                     self.error(str(record),self.V40_BAD_ALLELE,allele)
  */
-    if (unlikely(__pyx_v_alt == Py_None)) {
-      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1078; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+    if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+      __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+    } else {
+      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1078; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
     for (;;) {
       if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
       __pyx_t_10 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_10); __pyx_t_6++;
@@ -21627,7 +21888,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       __pyx_v_allele = __pyx_t_10;
       __pyx_t_10 = 0;
 
-      /* "cvcf.pyx":1079
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1079
  *             # format v4.0 -- just check for nucleotides
  *             for allele in alt:
  *                 if not alleleRegEx.match(allele):             # <<<<<<<<<<<<<<
@@ -21636,24 +21897,24 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
       __pyx_t_10 = __Pyx_GetName(__pyx_m, __pyx_n_s__alleleRegEx); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __pyx_t_1 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__match); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_t_10, __pyx_n_s__match); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+      __Pyx_GOTREF(__pyx_t_10);
       __Pyx_INCREF(__pyx_v_allele);
       PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_allele);
       __Pyx_GIVEREF(__pyx_v_allele);
-      __pyx_t_4 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_4 = PyObject_Call(__pyx_t_2, __pyx_t_10, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_4);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       __pyx_t_17 = __Pyx_PyObject_IsTrue(__pyx_t_4); if (unlikely(__pyx_t_17 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1079; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       __pyx_t_16 = (!__pyx_t_17);
       if (__pyx_t_16) {
 
-        /* "cvcf.pyx":1080
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1080
  *             for allele in alt:
  *                 if not alleleRegEx.match(allele):
  *                     self.error(str(record),self.V40_BAD_ALLELE,allele)             # <<<<<<<<<<<<<<
@@ -21663,30 +21924,30 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_4 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
         __pyx_t_10 = PyTuple_New(1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_10));
+        __Pyx_GOTREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_record);
         PyTuple_SET_ITEM(__pyx_t_10, 0, __pyx_v_record);
         __Pyx_GIVEREF(__pyx_v_record);
-        __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_10), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        __Pyx_DECREF(((PyObject *)__pyx_t_10)); __pyx_t_10 = 0;
+        __pyx_t_2 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_10, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__V40_BAD_ALLELE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __pyx_t_13 = PyTuple_New(3); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_13));
-        PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_t_1);
-        __Pyx_GIVEREF(__pyx_t_1);
+        __Pyx_GOTREF(__pyx_t_13);
+        PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_t_2);
+        __Pyx_GIVEREF(__pyx_t_2);
         PyTuple_SET_ITEM(__pyx_t_13, 1, __pyx_t_10);
         __Pyx_GIVEREF(__pyx_t_10);
         __Pyx_INCREF(__pyx_v_allele);
         PyTuple_SET_ITEM(__pyx_t_13, 2, __pyx_v_allele);
         __Pyx_GIVEREF(__pyx_v_allele);
-        __pyx_t_1 = 0;
+        __pyx_t_2 = 0;
         __pyx_t_10 = 0;
-        __pyx_t_10 = PyObject_Call(__pyx_t_4, ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(__pyx_t_4, __pyx_t_13, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1080; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
         goto __pyx_L50;
       }
@@ -21696,17 +21957,18 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   }
   __pyx_L20:;
 
-  /* "cvcf.pyx":1084
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1084
  * 
  *         # check for leading nucleotide in indel calls
  *         for allele in alt:             # <<<<<<<<<<<<<<
  *             if len(allele) != len(ref):
  *                 if len(allele) == 0: self.error(str(record),self.ZERO_LENGTH_ALLELE)
  */
-  if (unlikely(__pyx_v_alt == Py_None)) {
-    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+  if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+    __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+  } else {
+    PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1084; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   }
-  __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
   for (;;) {
     if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
     __pyx_t_10 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_10); __pyx_t_6++;
@@ -21714,7 +21976,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_v_allele = __pyx_t_10;
     __pyx_t_10 = 0;
 
-    /* "cvcf.pyx":1085
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1085
  *         # check for leading nucleotide in indel calls
  *         for allele in alt:
  *             if len(allele) != len(ref):             # <<<<<<<<<<<<<<
@@ -21726,7 +21988,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_t_16 = (__pyx_t_12 != __pyx_t_8);
     if (__pyx_t_16) {
 
-      /* "cvcf.pyx":1086
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1086
  *         for allele in alt:
  *             if len(allele) != len(ref):
  *                 if len(allele) == 0: self.error(str(record),self.ZERO_LENGTH_ALLELE)             # <<<<<<<<<<<<<<
@@ -21739,33 +22001,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_10 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
         __pyx_t_13 = PyTuple_New(1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_13));
+        __Pyx_GOTREF(__pyx_t_13);
         __Pyx_INCREF(__pyx_v_record);
         PyTuple_SET_ITEM(__pyx_t_13, 0, __pyx_v_record);
         __Pyx_GIVEREF(__pyx_v_record);
-        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_13), NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_13, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        __Pyx_DECREF(((PyObject *)__pyx_t_13)); __pyx_t_13 = 0;
+        __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         __pyx_t_13 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__ZERO_LENGTH_ALLELE); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
-        __pyx_t_1 = PyTuple_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-        PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_t_4);
+        __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_4);
         __Pyx_GIVEREF(__pyx_t_4);
-        PyTuple_SET_ITEM(__pyx_t_1, 1, __pyx_t_13);
+        PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_13);
         __Pyx_GIVEREF(__pyx_t_13);
         __pyx_t_4 = 0;
         __pyx_t_13 = 0;
-        __pyx_t_13 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = PyObject_Call(__pyx_t_10, __pyx_t_2, NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1086; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         goto __pyx_L54;
       }
       __pyx_L54:;
 
-      /* "cvcf.pyx":1087
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1087
  *             if len(allele) != len(ref):
  *                 if len(allele) == 0: self.error(str(record),self.ZERO_LENGTH_ALLELE)
  *                 if ref[0].upper() != allele[0].upper() and "N" not in (ref[0]+allele[0]).upper():             # <<<<<<<<<<<<<<
@@ -21774,41 +22036,41 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
       __pyx_t_13 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_13) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_13);
-      __pyx_t_1 = PyObject_GetAttr(__pyx_t_13, __pyx_n_s__upper); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = PyObject_GetAttr(__pyx_t_13, __pyx_n_s__upper); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
-      __pyx_t_13 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_13 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_13);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_allele, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_10 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__upper); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_allele, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_10 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__upper); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      __pyx_t_1 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      __pyx_t_2 = PyObject_Call(__pyx_t_10, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-      __pyx_t_10 = PyObject_RichCompare(__pyx_t_13, __pyx_t_1, Py_NE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PyObject_RichCompare(__pyx_t_13, __pyx_t_2, Py_NE); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_16 = __Pyx_PyObject_IsTrue(__pyx_t_10); if (unlikely(__pyx_t_16 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
       if (__pyx_t_16) {
         __pyx_t_10 = __Pyx_GetItemInt(__pyx_v_ref, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_10) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __pyx_t_1 = __Pyx_GetItemInt(__pyx_v_allele, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
-        __pyx_t_13 = PyNumber_Add(__pyx_t_10, __pyx_t_1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_2 = __Pyx_GetItemInt(__pyx_v_allele, 0, sizeof(long), PyInt_FromLong); if (!__pyx_t_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
+        __pyx_t_13 = PyNumber_Add(__pyx_t_10, __pyx_t_2); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
         __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_GetAttr(__pyx_t_13, __pyx_n_s__upper); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_2 = PyObject_GetAttr(__pyx_t_13, __pyx_n_s__upper); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
-        __pyx_t_13 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_13 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_empty_tuple), NULL); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
         __pyx_t_17 = (__Pyx_NegateNonNeg(PySequence_Contains(__pyx_t_13, ((PyObject *)__pyx_n_s__N)))); if (unlikely(__pyx_t_17 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1087; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         __pyx_t_3 = __pyx_t_17;
@@ -21817,7 +22079,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       }
       if (__pyx_t_3) {
 
-        /* "cvcf.pyx":1088
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1088
  *                 if len(allele) == 0: self.error(str(record),self.ZERO_LENGTH_ALLELE)
  *                 if ref[0].upper() != allele[0].upper() and "N" not in (ref[0]+allele[0]).upper():
  *                     self.error(str(record),self.MISSING_INDEL_ALLELE_REF_BASE)             # <<<<<<<<<<<<<<
@@ -21826,29 +22088,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
         __pyx_t_13 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s__error); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_13);
-        __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+        __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_INCREF(__pyx_v_record);
-        PyTuple_SET_ITEM(__pyx_t_1, 0, __pyx_v_record);
+        PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_v_record);
         __Pyx_GIVEREF(__pyx_v_record);
-        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)(&PyString_Type))), ((PyObject *)__pyx_t_1), NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_10 = PyObject_Call(((PyObject *)((PyObject*)&PyString_Type)), __pyx_t_2, NULL); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_10);
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-        __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s_113); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1088; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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-        __Pyx_GOTREF(__pyx_t_1);
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-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
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@@ -21858,7 +22120,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   }
   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
 
-  /* "cvcf.pyx":1091
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1091
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  *                 break
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   __pyx_t_5 = PyTuple_New(2); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_5));
+  __Pyx_GOTREF(__pyx_t_5);
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   PyTuple_SET_ITEM(__pyx_t_5, 1, ((PyObject *)__pyx_v_alt));
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-  __pyx_t_1 = PyObject_Call(__pyx_builtin_map, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
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+  __Pyx_GOTREF(__pyx_t_2);
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+  __Pyx_GOTREF(__pyx_t_2);
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+  __pyx_t_13 = PyObject_RichCompare(__pyx_t_2, __pyx_t_4, Py_LT); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-    __Pyx_INCREF(__pyx_t_1);
-    __pyx_t_5 = __pyx_t_1;
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-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
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+  __Pyx_GOTREF(__pyx_t_2);
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+  __pyx_t_5 = PyObject_Call(__pyx_builtin_range, __pyx_t_2, NULL); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_5);
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
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-    __pyx_t_6 = 0; __pyx_t_1 = __pyx_t_5; __Pyx_INCREF(__pyx_t_1);
+    __pyx_t_6 = 0; __pyx_t_2 = __pyx_t_5; __Pyx_INCREF(__pyx_t_2);
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-    __pyx_t_6 = -1; __pyx_t_1 = PyObject_GetIter(__pyx_t_5); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
+    __pyx_t_6 = -1; __pyx_t_2 = PyObject_GetIter(__pyx_t_5); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
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   __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
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-    } else if (likely(PyTuple_CheckExact(__pyx_t_1))) {
-      if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_1)) break;
-      __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_1, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
+    if (likely(PyList_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_5 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
+    } else if (likely(PyTuple_CheckExact(__pyx_t_2))) {
+      if (__pyx_t_6 >= PyTuple_GET_SIZE(__pyx_t_2)) break;
+      __pyx_t_5 = PyTuple_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
     } else {
-      __pyx_t_5 = PyIter_Next(__pyx_t_1);
+      __pyx_t_5 = PyIter_Next(__pyx_t_2);
       if (!__pyx_t_5) {
         if (unlikely(PyErr_Occurred())) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1091; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         break;
@@ -21940,47 +22202,38 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_v_i = __pyx_t_5;
     __pyx_t_5 = 0;
 
-    /* "cvcf.pyx":1092
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1092
  *         # trim trailing bases in alleles
  *         for i in range(1,min(len(ref),min(map(len,alt)))):
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  *                 break
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-      __Pyx_GOTREF(((PyObject *)__pyx_t_5));
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-        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L61_error;} 
-      }
+    __pyx_t_5 = PySet_New(0); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(((PyObject *)__pyx_t_5));
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       __pyx_t_8 = 0; __pyx_t_13 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_13);
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+      __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
+      if (unlikely(PySet_Add(__pyx_t_5, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1092; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+    }
+    __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
     __pyx_t_8 = PySet_Size(((PyObject *)__pyx_t_5)); 
     __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
     __pyx_t_3 = (__pyx_t_8 > 1);
@@ -22016,7 +22269,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     }
     if (__pyx_t_17) {
 
-      /* "cvcf.pyx":1093
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1093
  *         for i in range(1,min(len(ref),min(map(len,alt)))):
  *             if len(set(allele[-1].upper() for allele in alt)) > 1 or ref[-1].upper() != alt[0][-1].upper():
  *                 break             # <<<<<<<<<<<<<<
@@ -22028,28 +22281,29 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     }
     __pyx_L58:;
 
-    /* "cvcf.pyx":1094
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1094
  *             if len(set(allele[-1].upper() for allele in alt)) > 1 or ref[-1].upper() != alt[0][-1].upper():
  *                 break
  *             ref, alt = ref[:-1], [allele[:-1] for allele in alt]             # <<<<<<<<<<<<<<
  * 
  *         # left-align alleles, if a reference is available
  */
-    __pyx_t_13 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __pyx_t_13 = PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(__pyx_t_13);
     __pyx_t_4 = PyList_New(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     __Pyx_GOTREF(((PyObject *)__pyx_t_4));
-    if (unlikely(__pyx_v_alt == Py_None)) {
-      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+    if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+      __pyx_t_8 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+    } else {
+      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
     }
-    __pyx_t_8 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
     for (;;) {
       if (__pyx_t_8 >= PyList_GET_SIZE(__pyx_t_5)) break;
       __pyx_t_10 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_8); __Pyx_INCREF(__pyx_t_10); __pyx_t_8++;
       __Pyx_DECREF(__pyx_v_allele);
       __pyx_v_allele = __pyx_t_10;
       __pyx_t_10 = 0;
-      __pyx_t_10 = __Pyx_PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __pyx_t_10 = PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_10);
       if (unlikely(PyList_Append(__pyx_t_4, (PyObject*)__pyx_t_10))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1094; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_10); __pyx_t_10 = 0;
@@ -22062,35 +22316,35 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
     __pyx_v_ref = __pyx_t_13;
     __pyx_t_13 = 0;
     __Pyx_DECREF(((PyObject *)__pyx_v_alt));
-    __pyx_v_alt = ((PyObject*)__pyx_t_5);
+    __pyx_v_alt = ((PyObject *)__pyx_t_5);
     __pyx_t_5 = 0;
   }
   __pyx_L57_break:;
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":1097
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1097
  * 
  *         # left-align alleles, if a reference is available
  *         if self._leftalign and self._reference:             # <<<<<<<<<<<<<<
  *             while left < pos:
  *                 movable = True
  */
-  __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___leftalign); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_17 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_17 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___leftalign); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_17 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_17 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
   if (__pyx_t_17) {
-    __pyx_t_1 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_GOTREF(__pyx_t_1);
-    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+    __pyx_t_2 = PyObject_GetAttr(__pyx_v_self, __pyx_n_s___reference); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_GOTREF(__pyx_t_2);
+    __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1097; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
     __pyx_t_16 = __pyx_t_3;
   } else {
     __pyx_t_16 = __pyx_t_17;
   }
   if (__pyx_t_16) {
 
-    /* "cvcf.pyx":1098
+    /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1098
  *         # left-align alleles, if a reference is available
  *         if self._leftalign and self._reference:
  *             while left < pos:             # <<<<<<<<<<<<<<
@@ -22098,13 +22352,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                 for allele in alt:
  */
     while (1) {
-      __pyx_t_1 = PyObject_RichCompare(__pyx_v_left, __pyx_v_pos, Py_LT); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __pyx_t_16 = __Pyx_PyObject_IsTrue(__pyx_t_1); if (unlikely(__pyx_t_16 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-      if (!__pyx_t_16) break;
+      __pyx_t_2 = PyObject_RichCompare(__pyx_v_left, __pyx_v_pos, Py_LT); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __pyx_t_16 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely(__pyx_t_16 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1098; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+      if (!__pyx_t_16) break;
 
-      /* "cvcf.pyx":1099
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1099
  *         if self._leftalign and self._reference:
  *             while left < pos:
  *                 movable = True             # <<<<<<<<<<<<<<
@@ -22113,25 +22367,26 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
       __pyx_v_movable = 1;
 
-      /* "cvcf.pyx":1100
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1100
  *             while left < pos:
  *                 movable = True
  *                 for allele in alt:             # <<<<<<<<<<<<<<
  *                     if len(allele) > len(ref):
  *                         longest, shortest = allele, ref
  */
-      if (unlikely(__pyx_v_alt == Py_None)) {
-        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+      if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+        __pyx_t_6 = 0; __pyx_t_2 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_2);
+      } else {
+        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1100; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_6 = 0; __pyx_t_1 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_1);
       for (;;) {
-        if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_1)) break;
-        __pyx_t_5 = PyList_GET_ITEM(__pyx_t_1, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
+        if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_2)) break;
+        __pyx_t_5 = PyList_GET_ITEM(__pyx_t_2, __pyx_t_6); __Pyx_INCREF(__pyx_t_5); __pyx_t_6++;
         __Pyx_DECREF(__pyx_v_allele);
         __pyx_v_allele = __pyx_t_5;
         __pyx_t_5 = 0;
 
-        /* "cvcf.pyx":1101
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1101
  *                 movable = True
  *                 for allele in alt:
  *                     if len(allele) > len(ref):             # <<<<<<<<<<<<<<
@@ -22143,7 +22398,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_16 = (__pyx_t_8 > __pyx_t_12);
         if (__pyx_t_16) {
 
-          /* "cvcf.pyx":1102
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1102
  *                 for allele in alt:
  *                     if len(allele) > len(ref):
  *                         longest, shortest = allele, ref             # <<<<<<<<<<<<<<
@@ -22160,11 +22415,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           __Pyx_DECREF(__pyx_v_shortest);
           __pyx_v_shortest = __pyx_t_13;
           __pyx_t_13 = 0;
-          goto __pyx_L72;
+          goto __pyx_L68;
         }
         /*else*/ {
 
-          /* "cvcf.pyx":1104
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1104
  *                         longest, shortest = allele, ref
  *                     else:
  *                         longest, shortest = ref, allele             # <<<<<<<<<<<<<<
@@ -22182,9 +22437,9 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           __pyx_v_shortest = __pyx_t_5;
           __pyx_t_5 = 0;
         }
-        __pyx_L72:;
+        __pyx_L68:;
 
-        /* "cvcf.pyx":1105
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1105
  *                     else:
  *                         longest, shortest = ref, allele
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():             # <<<<<<<<<<<<<<
@@ -22196,7 +22451,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_16 = (__pyx_t_12 == __pyx_t_8);
         if (!__pyx_t_16) {
           __pyx_t_8 = PyObject_Length(__pyx_v_shortest); if (unlikely(__pyx_t_8 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-          __pyx_t_5 = __Pyx_PySequence_GetSlice(__pyx_v_longest, 0, __pyx_t_8); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          __pyx_t_5 = PySequence_GetSlice(__pyx_v_longest, 0, __pyx_t_8); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_5);
           __pyx_t_13 = PyObject_GetAttr(__pyx_t_5, __pyx_n_s__upper); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1105; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_13);
@@ -22221,7 +22476,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         }
         if (__pyx_t_3) {
 
-          /* "cvcf.pyx":1106
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1106
  *                         longest, shortest = ref, allele
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():
  *                         movable = False             # <<<<<<<<<<<<<<
@@ -22229,11 +22484,11 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                         movable = False
  */
           __pyx_v_movable = 0;
-          goto __pyx_L73;
+          goto __pyx_L69;
         }
-        __pyx_L73:;
+        __pyx_L69:;
 
-        /* "cvcf.pyx":1107
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1107
  *                     if len(longest) == len(shortest) or longest[:len(shortest)].upper() != shortest.upper():
  *                         movable = False
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():             # <<<<<<<<<<<<<<
@@ -22266,7 +22521,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
         if (__pyx_t_3) {
 
-          /* "cvcf.pyx":1108
+          /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1108
  *                         movable = False
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():
  *                         movable = False             # <<<<<<<<<<<<<<
@@ -22274,13 +22529,13 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  *                     break
  */
           __pyx_v_movable = 0;
-          goto __pyx_L74;
+          goto __pyx_L70;
         }
-        __pyx_L74:;
+        __pyx_L70:;
       }
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":1109
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1109
  *                     if longest[-1].upper() != longest[len(shortest)-1].upper():
  *                         movable = False
  *                 if not movable:             # <<<<<<<<<<<<<<
@@ -22290,74 +22545,76 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       __pyx_t_3 = (!__pyx_v_movable);
       if (__pyx_t_3) {
 
-        /* "cvcf.pyx":1110
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1110
  *                         movable = False
  *                 if not movable:
  *                     break             # <<<<<<<<<<<<<<
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]
  */
-        goto __pyx_L69_break;
-        goto __pyx_L75;
+        goto __pyx_L65_break;
+        goto __pyx_L71;
       }
-      __pyx_L75:;
+      __pyx_L71:;
 
-      /* "cvcf.pyx":1111
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1111
  *                 if not movable:
  *                     break
  *                 ref = ref[:-1]             # <<<<<<<<<<<<<<
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  */
-      __pyx_t_1 = __Pyx_PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
+      __pyx_t_2 = PySequence_GetSlice(__pyx_v_ref, 0, -1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1111; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
       __Pyx_DECREF(__pyx_v_ref);
-      __pyx_v_ref = __pyx_t_1;
-      __pyx_t_1 = 0;
+      __pyx_v_ref = __pyx_t_2;
+      __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":1112
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1112
  *                     break
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]             # <<<<<<<<<<<<<<
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  *                     ref = faref_leftflank[pos-left-1] + ref
  */
-      __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-      if (unlikely(__pyx_v_alt == Py_None)) {
-        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+      __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+      if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+        __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+      } else {
+        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
       for (;;) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
         __pyx_t_4 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
         __Pyx_DECREF(__pyx_v_allele);
         __pyx_v_allele = __pyx_t_4;
         __pyx_t_4 = 0;
-        __pyx_t_4 = __Pyx_PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_4 = PySequence_GetSlice(__pyx_v_allele, 0, -1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        if (unlikely(PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1112; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       }
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-      __Pyx_INCREF(((PyObject *)__pyx_t_1));
+      __Pyx_INCREF(((PyObject *)__pyx_t_2));
       __Pyx_DECREF(((PyObject *)__pyx_v_alt));
-      __pyx_v_alt = __pyx_t_1;
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+      __pyx_v_alt = __pyx_t_2;
+      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
 
-      /* "cvcf.pyx":1113
+      /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1113
  *                 ref = ref[:-1]
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:             # <<<<<<<<<<<<<<
  *                     ref = faref_leftflank[pos-left-1] + ref
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]
  */
-      __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-      if (unlikely(__pyx_v_alt == Py_None)) {
-        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+      __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+      if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+        __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+      } else {
+        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       }
-      __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
       for (;;) {
         if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
         __pyx_t_4 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
@@ -22367,22 +22624,22 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
         __pyx_t_12 = PyObject_Length(__pyx_v_allele); if (unlikely(__pyx_t_12 == -1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __pyx_t_4 = PyInt_FromSsize_t(__pyx_t_12); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_4);
-        if (unlikely(PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_4))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       }
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(((PyObject *)__pyx_t_5));
-      __Pyx_INCREF(((PyObject *)__pyx_t_1));
-      PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_t_1));
-      __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
-      __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
-      __pyx_t_1 = PyObject_Call(__pyx_builtin_min, ((PyObject *)__pyx_t_5), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-      __Pyx_GOTREF(__pyx_t_1);
-      __Pyx_DECREF(((PyObject *)__pyx_t_5)); __pyx_t_5 = 0;
-      __pyx_t_5 = PyObject_RichCompare(__pyx_t_1, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_GOTREF(__pyx_t_5);
-      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+      __Pyx_INCREF(((PyObject *)__pyx_t_2));
+      PyTuple_SET_ITEM(__pyx_t_5, 0, ((PyObject *)__pyx_t_2));
+      __Pyx_GIVEREF(((PyObject *)__pyx_t_2));
+      __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+      __pyx_t_2 = PyObject_Call(__pyx_builtin_min, __pyx_t_5, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_2);
+      __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
+      __pyx_t_5 = PyObject_RichCompare(__pyx_t_2, __pyx_int_0, Py_EQ); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+      __Pyx_GOTREF(__pyx_t_5);
+      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
       __pyx_t_3 = __Pyx_PyObject_IsTrue(__pyx_t_5); if (unlikely(__pyx_t_3 < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1113; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
       __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
       if (!__pyx_t_3) {
@@ -22394,7 +22651,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
       }
       if (__pyx_t_17) {
 
-        /* "cvcf.pyx":1114
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1114
  *                 alt = [allele[:-1] for allele in alt]
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  *                     ref = faref_leftflank[pos-left-1] + ref             # <<<<<<<<<<<<<<
@@ -22403,32 +22660,33 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
  */
         __pyx_t_5 = PyNumber_Subtract(__pyx_v_pos, __pyx_v_left); if (unlikely(!__pyx_t_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __pyx_t_1 = PyNumber_Subtract(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyNumber_Subtract(__pyx_t_5, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __pyx_t_5 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_1); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __pyx_t_5 = PyObject_GetItem(__pyx_v_faref_leftflank, __pyx_t_2); if (!__pyx_t_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         __Pyx_GOTREF(__pyx_t_5);
-        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-        __pyx_t_1 = PyNumber_Add(__pyx_t_5, __pyx_v_ref); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+        __pyx_t_2 = PyNumber_Add(__pyx_t_5, __pyx_v_ref); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1114; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
         __Pyx_DECREF(__pyx_v_ref);
-        __pyx_v_ref = __pyx_t_1;
-        __pyx_t_1 = 0;
+        __pyx_v_ref = __pyx_t_2;
+        __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":1115
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1115
  *                 if min([len(allele) for allele in alt]) == 0 or len(ref) == 0:
  *                     ref = faref_leftflank[pos-left-1] + ref
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]             # <<<<<<<<<<<<<<
  *                     pos -= 1
  * 
  */
-        __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-        if (unlikely(__pyx_v_alt == Py_None)) {
-          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;} 
+        __pyx_t_2 = PyList_New(0); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+        if (likely(((PyObject *)__pyx_v_alt) != Py_None)) {
+          __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
+        } else {
+          PyErr_SetString(PyExc_TypeError, "'NoneType' object is not iterable"); {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
         }
-        __pyx_t_6 = 0; __pyx_t_5 = ((PyObject *)__pyx_v_alt); __Pyx_INCREF(__pyx_t_5);
         for (;;) {
           if (__pyx_t_6 >= PyList_GET_SIZE(__pyx_t_5)) break;
           __pyx_t_4 = PyList_GET_ITEM(__pyx_t_5, __pyx_t_6); __Pyx_INCREF(__pyx_t_4); __pyx_t_6++;
@@ -22446,35 +22704,35 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
           __pyx_t_13 = PyNumber_Add(__pyx_t_4, __pyx_v_allele); if (unlikely(!__pyx_t_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_GOTREF(__pyx_t_13);
           __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
-          if (unlikely(PyList_Append(__pyx_t_1, (PyObject*)__pyx_t_13))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+          if (unlikely(PyList_Append(__pyx_t_2, (PyObject*)__pyx_t_13))) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1115; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
           __Pyx_DECREF(__pyx_t_13); __pyx_t_13 = 0;
         }
         __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
-        __Pyx_INCREF(((PyObject *)__pyx_t_1));
+        __Pyx_INCREF(((PyObject *)__pyx_t_2));
         __Pyx_DECREF(((PyObject *)__pyx_v_alt));
-        __pyx_v_alt = __pyx_t_1;
-        __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+        __pyx_v_alt = __pyx_t_2;
+        __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
 
-        /* "cvcf.pyx":1116
+        /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1116
  *                     ref = faref_leftflank[pos-left-1] + ref
  *                     alt = [faref_leftflank[pos-left-1] + allele for allele in alt]
  *                     pos -= 1             # <<<<<<<<<<<<<<
  * 
  * __all__ = [
  */
-        __pyx_t_1 = PyNumber_InPlaceSubtract(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-        __Pyx_GOTREF(__pyx_t_1);
+        __pyx_t_2 = PyNumber_InPlaceSubtract(__pyx_v_pos, __pyx_int_1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1116; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+        __Pyx_GOTREF(__pyx_t_2);
         __Pyx_DECREF(__pyx_v_pos);
-        __pyx_v_pos = __pyx_t_1;
-        __pyx_t_1 = 0;
-        goto __pyx_L78;
+        __pyx_v_pos = __pyx_t_2;
+        __pyx_t_2 = 0;
+        goto __pyx_L74;
       }
-      __pyx_L78:;
+      __pyx_L74:;
     }
-    __pyx_L69_break:;
-    goto __pyx_L67;
+    __pyx_L65_break:;
+    goto __pyx_L63;
   }
-  __pyx_L67:;
+  __pyx_L63:;
 
   __pyx_r = Py_None; __Pyx_INCREF(Py_None);
   goto __pyx_L0;
@@ -22513,6 +22771,7 @@ static PyObject *__pyx_pf_4cvcf_3VCF_41validate(PyObject *__pyx_self, PyObject *
   __Pyx_DECREF(__pyx_v_allele);
   __Pyx_DECREF(__pyx_v_longest);
   __Pyx_DECREF(__pyx_v_shortest);
+  __Pyx_DECREF(__pyx_8genexpr1__pyx_v_allele);
   __Pyx_XGIVEREF(__pyx_r);
   __Pyx_RefNannyFinishContext();
   return __pyx_r;
@@ -22526,7 +22785,7 @@ static PyObject *__pyx_tp_new_4cvcf_VCFRecord(PyTypeObject *t, PyObject *a, PyOb
   p = ((struct __pyx_obj_4cvcf_VCFRecord *)o);
   p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_10TabProxies_TupleProxy*)__pyx_vtabptr_4cvcf_VCFRecord;
   p->vcf = Py_None; Py_INCREF(Py_None);
-  if (__pyx_pf_4cvcf_9VCFRecord_1__cinit__(o, a, k) < 0) {
+  if (__pyx_pf_4cvcf_9VCFRecord___cinit__(o, a, k) < 0) {
     Py_DECREF(o); o = 0;
   }
   return o;
@@ -22686,7 +22945,7 @@ static PyNumberMethods __pyx_tp_as_number_VCFRecord = {
 };
 
 static PySequenceMethods __pyx_tp_as_sequence_VCFRecord = {
-  __pyx_pf_4cvcf_9VCFRecord_2__len__, /*sq_length*/
+  __pyx_pf_4cvcf_9VCFRecord___len__, /*sq_length*/
   0, /*sq_concat*/
   0, /*sq_repeat*/
   __pyx_sq_item_4cvcf_VCFRecord, /*sq_item*/
@@ -22699,8 +22958,8 @@ static PySequenceMethods __pyx_tp_as_sequence_VCFRecord = {
 };
 
 static PyMappingMethods __pyx_tp_as_mapping_VCFRecord = {
-  __pyx_pf_4cvcf_9VCFRecord_2__len__, /*mp_length*/
-  __pyx_pf_4cvcf_9VCFRecord_3__getitem__, /*mp_subscript*/
+  __pyx_pf_4cvcf_9VCFRecord___len__, /*mp_length*/
+  __pyx_pf_4cvcf_9VCFRecord___getitem__, /*mp_subscript*/
   0, /*mp_ass_subscript*/
 };
 
@@ -22725,7 +22984,7 @@ static PyBufferProcs __pyx_tp_as_buffer_VCFRecord = {
   #endif
 };
 
-static PyTypeObject __pyx_type_4cvcf_VCFRecord = {
+PyTypeObject __pyx_type_4cvcf_VCFRecord = {
   PyVarObject_HEAD_INIT(0, 0)
   __Pyx_NAMESTR("cvcf.VCFRecord"), /*tp_name*/
   sizeof(struct __pyx_obj_4cvcf_VCFRecord), /*tp_basicsize*/
@@ -22749,7 +23008,7 @@ static PyTypeObject __pyx_type_4cvcf_VCFRecord = {
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   &__pyx_tp_as_buffer_VCFRecord, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   __Pyx_DOCSTR("vcf record.\n\n    initialized from data and vcf meta \n    "), /*tp_doc*/
   __pyx_tp_traverse_4cvcf_VCFRecord, /*tp_traverse*/
   __pyx_tp_clear_4cvcf_VCFRecord, /*tp_clear*/
@@ -22922,7 +23181,7 @@ static PyBufferProcs __pyx_tp_as_buffer_asVCFRecord = {
   #endif
 };
 
-static PyTypeObject __pyx_type_4cvcf_asVCFRecord = {
+PyTypeObject __pyx_type_4cvcf_asVCFRecord = {
   PyVarObject_HEAD_INIT(0, 0)
   __Pyx_NAMESTR("cvcf.asVCFRecord"), /*tp_name*/
   sizeof(struct __pyx_obj_4cvcf_asVCFRecord), /*tp_basicsize*/
@@ -22941,12 +23200,12 @@ static PyTypeObject __pyx_type_4cvcf_asVCFRecord = {
   &__pyx_tp_as_sequence_asVCFRecord, /*tp_as_sequence*/
   &__pyx_tp_as_mapping_asVCFRecord, /*tp_as_mapping*/
   0, /*tp_hash*/
-  __pyx_pf_4cvcf_11asVCFRecord_1__call__, /*tp_call*/
+  __pyx_pf_4cvcf_11asVCFRecord___call__, /*tp_call*/
   0, /*tp_str*/
   0, /*tp_getattro*/
   0, /*tp_setattro*/
   &__pyx_tp_as_buffer_asVCFRecord, /*tp_as_buffer*/
-  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
+  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
   __Pyx_DOCSTR("converts a :term:`tabix row` into a VCF record."), /*tp_doc*/
   __pyx_tp_traverse_4cvcf_asVCFRecord, /*tp_traverse*/
   __pyx_tp_clear_4cvcf_asVCFRecord, /*tp_clear*/
@@ -22979,6 +23238,8 @@ static PyTypeObject __pyx_type_4cvcf_asVCFRecord = {
 };
 
 static PyMethodDef __pyx_methods[] = {
+  {__Pyx_NAMESTR("get_sequence"), (PyCFunction)__pyx_pf_4cvcf_get_sequence, METH_VARARGS|METH_KEYWORDS, __Pyx_DOCSTR(0)},
+  {__Pyx_NAMESTR("parse_regions"), (PyCFunction)__pyx_pf_4cvcf_parse_regions, METH_O, __Pyx_DOCSTR(0)},
   {0, 0, 0, 0}
 };
 
@@ -22998,107 +23259,124 @@ static struct PyModuleDef __pyx_moduledef = {
 
 static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_kp_s_1, __pyx_k_1, sizeof(__pyx_k_1), 0, 0, 1, 0},
-  {&__pyx_n_s_101, __pyx_k_101, sizeof(__pyx_k_101), 0, 0, 1, 1},
+  {&__pyx_kp_s_10, __pyx_k_10, sizeof(__pyx_k_10), 0, 0, 1, 0},
+  {&__pyx_kp_s_100, __pyx_k_100, sizeof(__pyx_k_100), 0, 0, 1, 0},
+  {&__pyx_kp_s_101, __pyx_k_101, sizeof(__pyx_k_101), 0, 0, 1, 0},
   {&__pyx_kp_s_102, __pyx_k_102, sizeof(__pyx_k_102), 0, 0, 1, 0},
   {&__pyx_kp_s_103, __pyx_k_103, sizeof(__pyx_k_103), 0, 0, 1, 0},
-  {&__pyx_kp_s_11, __pyx_k_11, sizeof(__pyx_k_11), 0, 0, 1, 0},
-  {&__pyx_n_s_111, __pyx_k_111, sizeof(__pyx_k_111), 0, 0, 1, 1},
-  {&__pyx_kp_s_112, __pyx_k_112, sizeof(__pyx_k_112), 0, 0, 1, 0},
-  {&__pyx_n_s_113, __pyx_k_113, sizeof(__pyx_k_113), 0, 0, 1, 1},
-  {&__pyx_kp_s_115, __pyx_k_115, sizeof(__pyx_k_115), 0, 0, 1, 0},
-  {&__pyx_n_s_118, __pyx_k_118, sizeof(__pyx_k_118), 0, 0, 1, 1},
-  {&__pyx_kp_s_119, __pyx_k_119, sizeof(__pyx_k_119), 0, 0, 1, 0},
-  {&__pyx_kp_s_121, __pyx_k_121, sizeof(__pyx_k_121), 0, 0, 1, 0},
-  {&__pyx_kp_s_122, __pyx_k_122, sizeof(__pyx_k_122), 0, 0, 1, 0},
-  {&__pyx_kp_s_126, __pyx_k_126, sizeof(__pyx_k_126), 0, 0, 1, 0},
-  {&__pyx_kp_s_128, __pyx_k_128, sizeof(__pyx_k_128), 0, 0, 1, 0},
-  {&__pyx_kp_s_130, __pyx_k_130, sizeof(__pyx_k_130), 0, 0, 1, 0},
-  {&__pyx_kp_s_132, __pyx_k_132, sizeof(__pyx_k_132), 0, 0, 1, 0},
-  {&__pyx_kp_s_133, __pyx_k_133, sizeof(__pyx_k_133), 0, 0, 1, 0},
-  {&__pyx_kp_s_134, __pyx_k_134, sizeof(__pyx_k_134), 0, 0, 1, 0},
-  {&__pyx_kp_s_135, __pyx_k_135, sizeof(__pyx_k_135), 0, 0, 1, 0},
-  {&__pyx_kp_s_136, __pyx_k_136, sizeof(__pyx_k_136), 0, 0, 1, 0},
-  {&__pyx_kp_s_137, __pyx_k_137, sizeof(__pyx_k_137), 0, 0, 1, 0},
-  {&__pyx_kp_s_138, __pyx_k_138, sizeof(__pyx_k_138), 0, 0, 1, 0},
-  {&__pyx_kp_s_139, __pyx_k_139, sizeof(__pyx_k_139), 0, 0, 1, 0},
+  {&__pyx_kp_s_104, __pyx_k_104, sizeof(__pyx_k_104), 0, 0, 1, 0},
+  {&__pyx_kp_s_105, __pyx_k_105, sizeof(__pyx_k_105), 0, 0, 1, 0},
+  {&__pyx_kp_s_106, __pyx_k_106, sizeof(__pyx_k_106), 0, 0, 1, 0},
+  {&__pyx_kp_u_107, __pyx_k_107, sizeof(__pyx_k_107), 0, 1, 0, 0},
+  {&__pyx_kp_u_108, __pyx_k_108, sizeof(__pyx_k_108), 0, 1, 0, 0},
+  {&__pyx_kp_u_109, __pyx_k_109, sizeof(__pyx_k_109), 0, 1, 0, 0},
+  {&__pyx_n_s_11, __pyx_k_11, sizeof(__pyx_k_11), 0, 0, 1, 1},
+  {&__pyx_kp_u_110, __pyx_k_110, sizeof(__pyx_k_110), 0, 1, 0, 0},
+  {&__pyx_kp_u_111, __pyx_k_111, sizeof(__pyx_k_111), 0, 1, 0, 0},
+  {&__pyx_kp_u_112, __pyx_k_112, sizeof(__pyx_k_112), 0, 1, 0, 0},
+  {&__pyx_kp_u_113, __pyx_k_113, sizeof(__pyx_k_113), 0, 1, 0, 0},
+  {&__pyx_kp_u_114, __pyx_k_114, sizeof(__pyx_k_114), 0, 1, 0, 0},
+  {&__pyx_kp_u_115, __pyx_k_115, sizeof(__pyx_k_115), 0, 1, 0, 0},
+  {&__pyx_kp_u_116, __pyx_k_116, sizeof(__pyx_k_116), 0, 1, 0, 0},
+  {&__pyx_kp_u_117, __pyx_k_117, sizeof(__pyx_k_117), 0, 1, 0, 0},
+  {&__pyx_kp_u_118, __pyx_k_118, sizeof(__pyx_k_118), 0, 1, 0, 0},
+  {&__pyx_kp_u_119, __pyx_k_119, sizeof(__pyx_k_119), 0, 1, 0, 0},
+  {&__pyx_kp_s_12, __pyx_k_12, sizeof(__pyx_k_12), 0, 0, 1, 0},
+  {&__pyx_kp_u_120, __pyx_k_120, sizeof(__pyx_k_120), 0, 1, 0, 0},
+  {&__pyx_kp_u_121, __pyx_k_121, sizeof(__pyx_k_121), 0, 1, 0, 0},
+  {&__pyx_kp_u_122, __pyx_k_122, sizeof(__pyx_k_122), 0, 1, 0, 0},
+  {&__pyx_kp_u_123, __pyx_k_123, sizeof(__pyx_k_123), 0, 1, 0, 0},
+  {&__pyx_kp_u_124, __pyx_k_124, sizeof(__pyx_k_124), 0, 1, 0, 0},
   {&__pyx_kp_s_14, __pyx_k_14, sizeof(__pyx_k_14), 0, 0, 1, 0},
-  {&__pyx_kp_s_140, __pyx_k_140, sizeof(__pyx_k_140), 0, 0, 1, 0},
-  {&__pyx_kp_s_141, __pyx_k_141, sizeof(__pyx_k_141), 0, 0, 1, 0},
-  {&__pyx_kp_s_142, __pyx_k_142, sizeof(__pyx_k_142), 0, 0, 1, 0},
-  {&__pyx_kp_s_143, __pyx_k_143, sizeof(__pyx_k_143), 0, 0, 1, 0},
-  {&__pyx_kp_s_144, __pyx_k_144, sizeof(__pyx_k_144), 0, 0, 1, 0},
-  {&__pyx_kp_s_145, __pyx_k_145, sizeof(__pyx_k_145), 0, 0, 1, 0},
-  {&__pyx_kp_s_146, __pyx_k_146, sizeof(__pyx_k_146), 0, 0, 1, 0},
-  {&__pyx_kp_s_147, __pyx_k_147, sizeof(__pyx_k_147), 0, 0, 1, 0},
-  {&__pyx_kp_s_148, __pyx_k_148, sizeof(__pyx_k_148), 0, 0, 1, 0},
-  {&__pyx_kp_s_149, __pyx_k_149, sizeof(__pyx_k_149), 0, 0, 1, 0},
-  {&__pyx_kp_s_150, __pyx_k_150, sizeof(__pyx_k_150), 0, 0, 1, 0},
-  {&__pyx_kp_s_151, __pyx_k_151, sizeof(__pyx_k_151), 0, 0, 1, 0},
-  {&__pyx_kp_s_152, __pyx_k_152, sizeof(__pyx_k_152), 0, 0, 1, 0},
-  {&__pyx_kp_s_153, __pyx_k_153, sizeof(__pyx_k_153), 0, 0, 1, 0},
-  {&__pyx_kp_s_154, __pyx_k_154, sizeof(__pyx_k_154), 0, 0, 1, 0},
-  {&__pyx_kp_s_155, __pyx_k_155, sizeof(__pyx_k_155), 0, 0, 1, 0},
-  {&__pyx_kp_s_156, __pyx_k_156, sizeof(__pyx_k_156), 0, 0, 1, 0},
-  {&__pyx_kp_s_157, __pyx_k_157, sizeof(__pyx_k_157), 0, 0, 1, 0},
-  {&__pyx_kp_s_158, __pyx_k_158, sizeof(__pyx_k_158), 0, 0, 1, 0},
-  {&__pyx_kp_s_159, __pyx_k_159, sizeof(__pyx_k_159), 0, 0, 1, 0},
-  {&__pyx_kp_s_160, __pyx_k_160, sizeof(__pyx_k_160), 0, 0, 1, 0},
-  {&__pyx_kp_s_161, __pyx_k_161, sizeof(__pyx_k_161), 0, 0, 1, 0},
-  {&__pyx_kp_s_162, __pyx_k_162, sizeof(__pyx_k_162), 0, 0, 1, 0},
-  {&__pyx_n_s_18, __pyx_k_18, sizeof(__pyx_k_18), 0, 0, 1, 1},
+  {&__pyx_kp_s_16, __pyx_k_16, sizeof(__pyx_k_16), 0, 0, 1, 0},
+  {&__pyx_n_s_17, __pyx_k_17, sizeof(__pyx_k_17), 0, 0, 1, 1},
+  {&__pyx_kp_s_18, __pyx_k_18, sizeof(__pyx_k_18), 0, 0, 1, 0},
   {&__pyx_kp_s_19, __pyx_k_19, sizeof(__pyx_k_19), 0, 0, 1, 0},
   {&__pyx_kp_s_2, __pyx_k_2, sizeof(__pyx_k_2), 0, 0, 1, 0},
   {&__pyx_n_s_20, __pyx_k_20, sizeof(__pyx_k_20), 0, 0, 1, 1},
-  {&__pyx_kp_s_21, __pyx_k_21, sizeof(__pyx_k_21), 0, 0, 1, 0},
+  {&__pyx_n_s_21, __pyx_k_21, sizeof(__pyx_k_21), 0, 0, 1, 1},
+  {&__pyx_kp_s_22, __pyx_k_22, sizeof(__pyx_k_22), 0, 0, 1, 0},
+  {&__pyx_kp_s_23, __pyx_k_23, sizeof(__pyx_k_23), 0, 0, 1, 0},
+  {&__pyx_kp_s_24, __pyx_k_24, sizeof(__pyx_k_24), 0, 0, 1, 0},
   {&__pyx_kp_s_25, __pyx_k_25, sizeof(__pyx_k_25), 0, 0, 1, 0},
+  {&__pyx_n_s_26, __pyx_k_26, sizeof(__pyx_k_26), 0, 0, 1, 1},
   {&__pyx_kp_s_27, __pyx_k_27, sizeof(__pyx_k_27), 0, 0, 1, 0},
-  {&__pyx_n_s_29, __pyx_k_29, sizeof(__pyx_k_29), 0, 0, 1, 1},
+  {&__pyx_kp_s_28, __pyx_k_28, sizeof(__pyx_k_28), 0, 0, 1, 0},
+  {&__pyx_kp_s_29, __pyx_k_29, sizeof(__pyx_k_29), 0, 0, 1, 0},
+  {&__pyx_kp_s_3, __pyx_k_3, sizeof(__pyx_k_3), 0, 0, 1, 0},
   {&__pyx_kp_s_30, __pyx_k_30, sizeof(__pyx_k_30), 0, 0, 1, 0},
+  {&__pyx_kp_s_31, __pyx_k_31, sizeof(__pyx_k_31), 0, 0, 1, 0},
+  {&__pyx_kp_s_33, __pyx_k_33, sizeof(__pyx_k_33), 0, 0, 1, 0},
   {&__pyx_kp_s_34, __pyx_k_34, sizeof(__pyx_k_34), 0, 0, 1, 0},
-  {&__pyx_n_s_38, __pyx_k_38, sizeof(__pyx_k_38), 0, 0, 1, 1},
-  {&__pyx_n_s_39, __pyx_k_39, sizeof(__pyx_k_39), 0, 0, 1, 1},
+  {&__pyx_kp_s_35, __pyx_k_35, sizeof(__pyx_k_35), 0, 0, 1, 0},
+  {&__pyx_kp_s_38, __pyx_k_38, sizeof(__pyx_k_38), 0, 0, 1, 0},
+  {&__pyx_kp_s_39, __pyx_k_39, sizeof(__pyx_k_39), 0, 0, 1, 0},
   {&__pyx_kp_s_4, __pyx_k_4, sizeof(__pyx_k_4), 0, 0, 1, 0},
   {&__pyx_kp_s_40, __pyx_k_40, sizeof(__pyx_k_40), 0, 0, 1, 0},
   {&__pyx_kp_s_41, __pyx_k_41, sizeof(__pyx_k_41), 0, 0, 1, 0},
   {&__pyx_kp_s_42, __pyx_k_42, sizeof(__pyx_k_42), 0, 0, 1, 0},
   {&__pyx_kp_s_43, __pyx_k_43, sizeof(__pyx_k_43), 0, 0, 1, 0},
+  {&__pyx_kp_s_44, __pyx_k_44, sizeof(__pyx_k_44), 0, 0, 1, 0},
+  {&__pyx_kp_s_45, __pyx_k_45, sizeof(__pyx_k_45), 0, 0, 1, 0},
+  {&__pyx_kp_s_46, __pyx_k_46, sizeof(__pyx_k_46), 0, 0, 1, 0},
+  {&__pyx_n_s_47, __pyx_k_47, sizeof(__pyx_k_47), 0, 0, 1, 1},
+  {&__pyx_kp_s_48, __pyx_k_48, sizeof(__pyx_k_48), 0, 0, 1, 0},
+  {&__pyx_kp_s_49, __pyx_k_49, sizeof(__pyx_k_49), 0, 0, 1, 0},
+  {&__pyx_kp_s_5, __pyx_k_5, sizeof(__pyx_k_5), 0, 0, 1, 0},
+  {&__pyx_kp_s_50, __pyx_k_50, sizeof(__pyx_k_50), 0, 0, 1, 0},
+  {&__pyx_kp_s_51, __pyx_k_51, sizeof(__pyx_k_51), 0, 0, 1, 0},
   {&__pyx_n_s_52, __pyx_k_52, sizeof(__pyx_k_52), 0, 0, 1, 1},
-  {&__pyx_kp_s_55, __pyx_k_55, sizeof(__pyx_k_55), 0, 0, 1, 0},
+  {&__pyx_kp_s_53, __pyx_k_53, sizeof(__pyx_k_53), 0, 0, 1, 0},
+  {&__pyx_kp_s_54, __pyx_k_54, sizeof(__pyx_k_54), 0, 0, 1, 0},
+  {&__pyx_n_s_55, __pyx_k_55, sizeof(__pyx_k_55), 0, 0, 1, 1},
   {&__pyx_kp_s_56, __pyx_k_56, sizeof(__pyx_k_56), 0, 0, 1, 0},
   {&__pyx_kp_s_57, __pyx_k_57, sizeof(__pyx_k_57), 0, 0, 1, 0},
-  {&__pyx_kp_s_58, __pyx_k_58, sizeof(__pyx_k_58), 0, 0, 1, 0},
-  {&__pyx_kp_s_59, __pyx_k_59, sizeof(__pyx_k_59), 0, 0, 1, 0},
+  {&__pyx_n_s_58, __pyx_k_58, sizeof(__pyx_k_58), 0, 0, 1, 1},
+  {&__pyx_n_s_59, __pyx_k_59, sizeof(__pyx_k_59), 0, 0, 1, 1},
+  {&__pyx_kp_b_6, __pyx_k_6, sizeof(__pyx_k_6), 0, 0, 0, 0},
   {&__pyx_kp_s_6, __pyx_k_6, sizeof(__pyx_k_6), 0, 0, 1, 0},
-  {&__pyx_kp_s_61, __pyx_k_61, sizeof(__pyx_k_61), 0, 0, 1, 0},
-  {&__pyx_kp_s_62, __pyx_k_62, sizeof(__pyx_k_62), 0, 0, 1, 0},
+  {&__pyx_n_s_60, __pyx_k_60, sizeof(__pyx_k_60), 0, 0, 1, 1},
+  {&__pyx_n_s_62, __pyx_k_62, sizeof(__pyx_k_62), 0, 0, 1, 1},
   {&__pyx_kp_s_63, __pyx_k_63, sizeof(__pyx_k_63), 0, 0, 1, 0},
+  {&__pyx_kp_s_64, __pyx_k_64, sizeof(__pyx_k_64), 0, 0, 1, 0},
+  {&__pyx_n_s_65, __pyx_k_65, sizeof(__pyx_k_65), 0, 0, 1, 1},
   {&__pyx_kp_s_66, __pyx_k_66, sizeof(__pyx_k_66), 0, 0, 1, 0},
-  {&__pyx_kp_s_69, __pyx_k_69, sizeof(__pyx_k_69), 0, 0, 1, 0},
+  {&__pyx_n_s_67, __pyx_k_67, sizeof(__pyx_k_67), 0, 0, 1, 1},
+  {&__pyx_kp_s_68, __pyx_k_68, sizeof(__pyx_k_68), 0, 0, 1, 0},
+  {&__pyx_n_s_69, __pyx_k_69, sizeof(__pyx_k_69), 0, 0, 1, 1},
+  {&__pyx_kp_s_7, __pyx_k_7, sizeof(__pyx_k_7), 0, 0, 1, 0},
   {&__pyx_kp_s_70, __pyx_k_70, sizeof(__pyx_k_70), 0, 0, 1, 0},
   {&__pyx_kp_s_71, __pyx_k_71, sizeof(__pyx_k_71), 0, 0, 1, 0},
   {&__pyx_kp_s_72, __pyx_k_72, sizeof(__pyx_k_72), 0, 0, 1, 0},
   {&__pyx_kp_s_73, __pyx_k_73, sizeof(__pyx_k_73), 0, 0, 1, 0},
+  {&__pyx_kp_s_74, __pyx_k_74, sizeof(__pyx_k_74), 0, 0, 1, 0},
+  {&__pyx_kp_s_75, __pyx_k_75, sizeof(__pyx_k_75), 0, 0, 1, 0},
   {&__pyx_kp_s_76, __pyx_k_76, sizeof(__pyx_k_76), 0, 0, 1, 0},
   {&__pyx_kp_s_77, __pyx_k_77, sizeof(__pyx_k_77), 0, 0, 1, 0},
   {&__pyx_kp_s_78, __pyx_k_78, sizeof(__pyx_k_78), 0, 0, 1, 0},
-  {&__pyx_n_s_79, __pyx_k_79, sizeof(__pyx_k_79), 0, 0, 1, 1},
+  {&__pyx_kp_s_79, __pyx_k_79, sizeof(__pyx_k_79), 0, 0, 1, 0},
   {&__pyx_kp_s_8, __pyx_k_8, sizeof(__pyx_k_8), 0, 0, 1, 0},
   {&__pyx_kp_s_80, __pyx_k_80, sizeof(__pyx_k_80), 0, 0, 1, 0},
   {&__pyx_kp_s_81, __pyx_k_81, sizeof(__pyx_k_81), 0, 0, 1, 0},
   {&__pyx_kp_s_82, __pyx_k_82, sizeof(__pyx_k_82), 0, 0, 1, 0},
+  {&__pyx_kp_s_83, __pyx_k_83, sizeof(__pyx_k_83), 0, 0, 1, 0},
+  {&__pyx_kp_s_84, __pyx_k_84, sizeof(__pyx_k_84), 0, 0, 1, 0},
   {&__pyx_kp_s_85, __pyx_k_85, sizeof(__pyx_k_85), 0, 0, 1, 0},
-  {&__pyx_n_s_87, __pyx_k_87, sizeof(__pyx_k_87), 0, 0, 1, 1},
+  {&__pyx_kp_s_86, __pyx_k_86, sizeof(__pyx_k_86), 0, 0, 1, 0},
+  {&__pyx_kp_s_87, __pyx_k_87, sizeof(__pyx_k_87), 0, 0, 1, 0},
   {&__pyx_kp_s_88, __pyx_k_88, sizeof(__pyx_k_88), 0, 0, 1, 0},
   {&__pyx_kp_s_89, __pyx_k_89, sizeof(__pyx_k_89), 0, 0, 1, 0},
-  {&__pyx_kp_b_9, __pyx_k_9, sizeof(__pyx_k_9), 0, 0, 0, 0},
-  {&__pyx_kp_s_9, __pyx_k_9, sizeof(__pyx_k_9), 0, 0, 1, 0},
-  {&__pyx_n_s_90, __pyx_k_90, sizeof(__pyx_k_90), 0, 0, 1, 1},
+  {&__pyx_n_s_9, __pyx_k_9, sizeof(__pyx_k_9), 0, 0, 1, 1},
+  {&__pyx_kp_s_90, __pyx_k_90, sizeof(__pyx_k_90), 0, 0, 1, 0},
   {&__pyx_kp_s_91, __pyx_k_91, sizeof(__pyx_k_91), 0, 0, 1, 0},
   {&__pyx_kp_s_92, __pyx_k_92, sizeof(__pyx_k_92), 0, 0, 1, 0},
-  {&__pyx_n_s_93, __pyx_k_93, sizeof(__pyx_k_93), 0, 0, 1, 1},
-  {&__pyx_n_s_97, __pyx_k_97, sizeof(__pyx_k_97), 0, 0, 1, 1},
-  {&__pyx_n_s_98, __pyx_k_98, sizeof(__pyx_k_98), 0, 0, 1, 1},
-  {&__pyx_kp_b__0, __pyx_k__0, sizeof(__pyx_k__0), 0, 0, 0, 0},
+  {&__pyx_kp_s_93, __pyx_k_93, sizeof(__pyx_k_93), 0, 0, 1, 0},
+  {&__pyx_kp_s_94, __pyx_k_94, sizeof(__pyx_k_94), 0, 0, 1, 0},
+  {&__pyx_kp_s_95, __pyx_k_95, sizeof(__pyx_k_95), 0, 0, 1, 0},
+  {&__pyx_kp_s_96, __pyx_k_96, sizeof(__pyx_k_96), 0, 0, 1, 0},
+  {&__pyx_kp_s_97, __pyx_k_97, sizeof(__pyx_k_97), 0, 0, 1, 0},
+  {&__pyx_kp_s_98, __pyx_k_98, sizeof(__pyx_k_98), 0, 0, 1, 0},
+  {&__pyx_kp_s_99, __pyx_k_99, sizeof(__pyx_k_99), 0, 0, 1, 0},
   {&__pyx_kp_s__0, __pyx_k__0, sizeof(__pyx_k__0), 0, 0, 1, 0},
   {&__pyx_n_s__ACGTN, __pyx_k__ACGTN, sizeof(__pyx_k__ACGTN), 0, 0, 1, 1},
   {&__pyx_n_s__ALT, __pyx_k__ALT, sizeof(__pyx_k__ALT), 0, 0, 1, 1},
@@ -23140,7 +23418,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__NT_UNKNOWN, __pyx_k__NT_UNKNOWN, sizeof(__pyx_k__NT_UNKNOWN), 0, 0, 1, 1},
   {&__pyx_n_s__NotImplementedError, __pyx_k__NotImplementedError, sizeof(__pyx_k__NotImplementedError), 0, 0, 1, 1},
   {&__pyx_n_s__Number, __pyx_k__Number, sizeof(__pyx_k__Number), 0, 0, 1, 1},
-  {&__pyx_n_b__PASS, __pyx_k__PASS, sizeof(__pyx_k__PASS), 0, 0, 0, 1},
   {&__pyx_n_s__PASS, __pyx_k__PASS, sizeof(__pyx_k__PASS), 0, 0, 1, 1},
   {&__pyx_n_s__POS, __pyx_k__POS, sizeof(__pyx_k__POS), 0, 0, 1, 1},
   {&__pyx_n_s__POS_NOT_NUMERICAL, __pyx_k__POS_NOT_NUMERICAL, sizeof(__pyx_k__POS_NOT_NUMERICAL), 0, 0, 1, 1},
@@ -23193,7 +23470,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__alt, __pyx_k__alt, sizeof(__pyx_k__alt), 0, 0, 1, 1},
   {&__pyx_n_s__alt1, __pyx_k__alt1, sizeof(__pyx_k__alt1), 0, 0, 1, 1},
   {&__pyx_n_s__alt2, __pyx_k__alt2, sizeof(__pyx_k__alt2), 0, 0, 1, 1},
-  {&__pyx_n_s__append, __pyx_k__append, sizeof(__pyx_k__append), 0, 0, 1, 1},
   {&__pyx_n_s__bisect, __pyx_k__bisect, sizeof(__pyx_k__bisect), 0, 0, 1, 1},
   {&__pyx_n_s__buffer, __pyx_k__buffer, sizeof(__pyx_k__buffer), 0, 0, 1, 1},
   {&__pyx_n_s__chrom, __pyx_k__chrom, sizeof(__pyx_k__chrom), 0, 0, 1, 1},
@@ -23205,7 +23481,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__convertGT, __pyx_k__convertGT, sizeof(__pyx_k__convertGT), 0, 0, 1, 1},
   {&__pyx_n_s__convertGTback, __pyx_k__convertGTback, sizeof(__pyx_k__convertGTback), 0, 0, 1, 1},
   {&__pyx_n_s__copy, __pyx_k__copy, sizeof(__pyx_k__copy), 0, 0, 1, 1},
-  {&__pyx_n_s__cvcf, __pyx_k__cvcf, sizeof(__pyx_k__cvcf), 0, 0, 1, 1},
   {&__pyx_n_s__data, __pyx_k__data, sizeof(__pyx_k__data), 0, 0, 1, 1},
   {&__pyx_n_s__datagenerator, __pyx_k__datagenerator, sizeof(__pyx_k__datagenerator), 0, 0, 1, 1},
   {&__pyx_n_s__deepcopy, __pyx_k__deepcopy, sizeof(__pyx_k__deepcopy), 0, 0, 1, 1},
@@ -23272,7 +23547,6 @@ static __Pyx_StringTabEntry __pyx_string_tab[] = {
   {&__pyx_n_s__parse_formatdata, __pyx_k__parse_formatdata, sizeof(__pyx_k__parse_formatdata), 0, 0, 1, 1},
   {&__pyx_n_s__parse_header, __pyx_k__parse_header, sizeof(__pyx_k__parse_header), 0, 0, 1, 1},
   {&__pyx_n_s__parse_heading, __pyx_k__parse_heading, sizeof(__pyx_k__parse_heading), 0, 0, 1, 1},
-  {&__pyx_n_s__parse_regions, __pyx_k__parse_regions, sizeof(__pyx_k__parse_regions), 0, 0, 1, 1},
   {&__pyx_n_s__parser, __pyx_k__parser, sizeof(__pyx_k__parser), 0, 0, 1, 1},
   {&__pyx_n_s__pos, __pyx_k__pos, sizeof(__pyx_k__pos), 0, 0, 1, 1},
   {&__pyx_n_s__pos1, __pyx_k__pos1, sizeof(__pyx_k__pos1), 0, 0, 1, 1},
@@ -23341,935 +23615,192 @@ static int __Pyx_InitCachedBuiltins(void) {
   return -1;
 }
 
-static int __Pyx_InitCachedConstants(void) {
-  __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants");
-
-  /* "cvcf.pyx":70
- * def parse_regions( string ):
- *     result = []
- *     for r in string.split(','):             # <<<<<<<<<<<<<<
- *         elts = r.split(':')
- *         chrom, start, end = elts[0], 0, 3000000000
- */
-  __pyx_k_tuple_3 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 70; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_3));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_3, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_3));
-
-  /* "cvcf.pyx":71
- *     result = []
- *     for r in string.split(','):
- *         elts = r.split(':')             # <<<<<<<<<<<<<<
- *         chrom, start, end = elts[0], 0, 3000000000
- *         if len(elts)==1: pass
- */
-  __pyx_k_tuple_5 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 71; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_5));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_5, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_5));
+static int __Pyx_InitGlobals(void) {
+  #if PY_VERSION_HEX < 0x02040000
+  if (unlikely(__Pyx_Py23SetsImport() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #endif
+  if (__Pyx_InitStrings(__pyx_string_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_2 = PyInt_FromLong(2); if (unlikely(!__pyx_int_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_3 = PyInt_FromLong(3); if (unlikely(!__pyx_int_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_4 = PyInt_FromLong(4); if (unlikely(!__pyx_int_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_5 = PyInt_FromLong(5); if (unlikely(!__pyx_int_5)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_6 = PyInt_FromLong(6); if (unlikely(!__pyx_int_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_7 = PyInt_FromLong(7); if (unlikely(!__pyx_int_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_8 = PyInt_FromLong(8); if (unlikely(!__pyx_int_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_9 = PyInt_FromLong(9); if (unlikely(!__pyx_int_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_neg_1 = PyInt_FromLong(-1); if (unlikely(!__pyx_int_neg_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_10 = PyInt_FromLong(10); if (unlikely(!__pyx_int_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_11 = PyInt_FromLong(11); if (unlikely(!__pyx_int_11)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_12 = PyInt_FromLong(12); if (unlikely(!__pyx_int_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_13 = PyInt_FromLong(13); if (unlikely(!__pyx_int_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_14 = PyInt_FromLong(14); if (unlikely(!__pyx_int_14)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_15 = PyInt_FromLong(15); if (unlikely(!__pyx_int_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_16 = PyInt_FromLong(16); if (unlikely(!__pyx_int_16)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_17 = PyInt_FromLong(17); if (unlikely(!__pyx_int_17)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_18 = PyInt_FromLong(18); if (unlikely(!__pyx_int_18)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_19 = PyInt_FromLong(19); if (unlikely(!__pyx_int_19)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_20 = PyInt_FromLong(20); if (unlikely(!__pyx_int_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_21 = PyInt_FromLong(21); if (unlikely(!__pyx_int_21)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_22 = PyInt_FromLong(22); if (unlikely(!__pyx_int_22)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_23 = PyInt_FromLong(23); if (unlikely(!__pyx_int_23)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_24 = PyInt_FromLong(24); if (unlikely(!__pyx_int_24)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_25 = PyInt_FromLong(25); if (unlikely(!__pyx_int_25)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_26 = PyInt_FromLong(26); if (unlikely(!__pyx_int_26)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_27 = PyInt_FromLong(27); if (unlikely(!__pyx_int_27)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_28 = PyInt_FromLong(28); if (unlikely(!__pyx_int_28)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_29 = PyInt_FromLong(29); if (unlikely(!__pyx_int_29)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_30 = PyInt_FromLong(30); if (unlikely(!__pyx_int_30)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_33 = PyInt_FromLong(33); if (unlikely(!__pyx_int_33)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_40 = PyInt_FromLong(40); if (unlikely(!__pyx_int_40)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_100 = PyInt_FromLong(100); if (unlikely(!__pyx_int_100)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  __pyx_int_3000000000 = PyInt_FromString((char *)"3000000000", 0, 0); if (unlikely(!__pyx_int_3000000000)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  return 0;
+  __pyx_L1_error:;
+  return -1;
+}
 
-  /* "cvcf.pyx":76
- *         elif len(elts)==2:
- *             if len(elts[1])>0:
- *                 ielts = elts[1].split('-')             # <<<<<<<<<<<<<<
- *                 if len(ielts) != 2: ValueError("Don't understand region string '%s'" % r)
- *                 try:    start, end = int(ielts[0])-1, int(ielts[1])
- */
-  __pyx_k_tuple_7 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 76; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_7));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_6));
-  PyTuple_SET_ITEM(__pyx_k_tuple_7, 0, ((PyObject *)__pyx_kp_s_6));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_6));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_7));
+#if PY_MAJOR_VERSION < 3
+PyMODINIT_FUNC initcvcf(void); /*proto*/
+PyMODINIT_FUNC initcvcf(void)
+#else
+PyMODINIT_FUNC PyInit_cvcf(void); /*proto*/
+PyMODINIT_FUNC PyInit_cvcf(void)
+#endif
+{
+  PyObject *__pyx_t_1 = NULL;
+  PyObject *__pyx_t_2 = NULL;
+  PyObject *__pyx_t_3 = NULL;
+  PyObject *__pyx_t_4 = NULL;
+  #if CYTHON_REFNANNY
+  void* __pyx_refnanny = NULL;
+  __Pyx_RefNanny = __Pyx_RefNannyImportAPI("refnanny");
+  if (!__Pyx_RefNanny) {
+      PyErr_Clear();
+      __Pyx_RefNanny = __Pyx_RefNannyImportAPI("Cython.Runtime.refnanny");
+      if (!__Pyx_RefNanny)
+          Py_FatalError("failed to import 'refnanny' module");
+  }
+  __pyx_refnanny = __Pyx_RefNanny->SetupContext("PyMODINIT_FUNC PyInit_cvcf(void)", __LINE__, __FILE__);
+  #endif
+  __pyx_empty_tuple = PyTuple_New(0); if (unlikely(!__pyx_empty_tuple)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_empty_bytes = PyBytes_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_bytes)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #ifdef __pyx_binding_PyCFunctionType_USED
+  if (__pyx_binding_PyCFunctionType_init() < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  #endif
+  /*--- Library function declarations ---*/
+  /*--- Threads initialization code ---*/
+  #if defined(__PYX_FORCE_INIT_THREADS) && __PYX_FORCE_INIT_THREADS
+  #ifdef WITH_THREAD /* Python build with threading support? */
+  PyEval_InitThreads();
+  #endif
+  #endif
+  /*--- Module creation code ---*/
+  #if PY_MAJOR_VERSION < 3
+  __pyx_m = Py_InitModule4(__Pyx_NAMESTR("cvcf"), __pyx_methods, 0, 0, PYTHON_API_VERSION);
+  #else
+  __pyx_m = PyModule_Create(&__pyx_moduledef);
+  #endif
+  if (!__pyx_m) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  #if PY_MAJOR_VERSION < 3
+  Py_INCREF(__pyx_m);
+  #endif
+  __pyx_b = PyImport_AddModule(__Pyx_NAMESTR(__Pyx_BUILTIN_MODULE_NAME));
+  if (!__pyx_b) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  if (__Pyx_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  /*--- Initialize various global constants etc. ---*/
+  if (unlikely(__Pyx_InitGlobals() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__pyx_module_is_main_cvcf) {
+    if (__Pyx_SetAttrString(__pyx_m, "__name__", __pyx_n_s____main__) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
+  }
+  /*--- Builtin init code ---*/
+  if (unlikely(__Pyx_InitCachedBuiltins() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  /*--- Global init code ---*/
+  /*--- Function export code ---*/
+  /*--- Type init code ---*/
+  __pyx_ptype_10TabProxies_TupleProxy = __Pyx_ImportType("TabProxies", "TupleProxy", sizeof(struct __pyx_obj_10TabProxies_TupleProxy), 1); if (unlikely(!__pyx_ptype_10TabProxies_TupleProxy)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_GetVtable(__pyx_ptype_10TabProxies_TupleProxy->tp_dict, &__pyx_vtabptr_10TabProxies_TupleProxy) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_vtabptr_4cvcf_VCFRecord = &__pyx_vtable_4cvcf_VCFRecord;
+  __pyx_vtable_4cvcf_VCFRecord.__pyx_base = *__pyx_vtabptr_10TabProxies_TupleProxy;
+  #if PY_MAJOR_VERSION >= 3
+  __pyx_vtable_4cvcf_VCFRecord.__pyx_base.update = (PyObject *(*)(struct __pyx_obj_10TabProxies_TupleProxy *, char *, size_t))__pyx_f_4cvcf_9VCFRecord_update;
+  #else
+  *(void(**)(void))&__pyx_vtable_4cvcf_VCFRecord.__pyx_base.update = (void(*)(void))__pyx_f_4cvcf_9VCFRecord_update;
+  #endif
+  __pyx_type_4cvcf_VCFRecord.tp_base = __pyx_ptype_10TabProxies_TupleProxy;
+  if (PyType_Ready(&__pyx_type_4cvcf_VCFRecord) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetVtable(__pyx_type_4cvcf_VCFRecord.tp_dict, __pyx_vtabptr_4cvcf_VCFRecord) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "VCFRecord", (PyObject *)&__pyx_type_4cvcf_VCFRecord) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cvcf_VCFRecord = &__pyx_type_4cvcf_VCFRecord;
+  __pyx_ptype_6ctabix_Parser = __Pyx_ImportType("ctabix", "Parser", sizeof(struct __pyx_obj_6ctabix_Parser), 1); if (unlikely(!__pyx_ptype_6ctabix_Parser)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_type_4cvcf_asVCFRecord.tp_base = __pyx_ptype_6ctabix_Parser;
+  if (PyType_Ready(&__pyx_type_4cvcf_asVCFRecord) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_SetAttrString(__pyx_m, "asVCFRecord", (PyObject *)&__pyx_type_4cvcf_asVCFRecord) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 221; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_4cvcf_asVCFRecord = &__pyx_type_4cvcf_asVCFRecord;
+  /*--- Type import code ---*/
+  __pyx_ptype_6ctabix_Tabixfile = __Pyx_ImportType("ctabix", "Tabixfile", sizeof(struct __pyx_obj_6ctabix_Tabixfile), 1); if (unlikely(!__pyx_ptype_6ctabix_Tabixfile)) {__pyx_filename = __pyx_f[1]; __pyx_lineno = 172; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_10TabProxies_GTFProxy = __Pyx_ImportType("TabProxies", "GTFProxy", sizeof(struct __pyx_obj_10TabProxies_GTFProxy), 1); if (unlikely(!__pyx_ptype_10TabProxies_GTFProxy)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_GetVtable(__pyx_ptype_10TabProxies_GTFProxy->tp_dict, &__pyx_vtabptr_10TabProxies_GTFProxy) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 60; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_10TabProxies_NamedTupleProxy = __Pyx_ImportType("TabProxies", "NamedTupleProxy", sizeof(struct __pyx_obj_10TabProxies_NamedTupleProxy), 1); if (unlikely(!__pyx_ptype_10TabProxies_NamedTupleProxy)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_GetVtable(__pyx_ptype_10TabProxies_NamedTupleProxy->tp_dict, &__pyx_vtabptr_10TabProxies_NamedTupleProxy) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 77; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_10TabProxies_BedProxy = __Pyx_ImportType("TabProxies", "BedProxy", sizeof(struct __pyx_obj_10TabProxies_BedProxy), 1); if (unlikely(!__pyx_ptype_10TabProxies_BedProxy)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_GetVtable(__pyx_ptype_10TabProxies_BedProxy->tp_dict, &__pyx_vtabptr_10TabProxies_BedProxy) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 80; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_ptype_10TabProxies_VCFProxy = __Pyx_ImportType("TabProxies", "VCFProxy", sizeof(struct __pyx_obj_10TabProxies_VCFProxy), 1); if (unlikely(!__pyx_ptype_10TabProxies_VCFProxy)) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (__Pyx_GetVtable(__pyx_ptype_10TabProxies_VCFProxy->tp_dict, &__pyx_vtabptr_10TabProxies_VCFProxy) < 0) {__pyx_filename = __pyx_f[2]; __pyx_lineno = 91; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  /*--- Function import code ---*/
+  /*--- Execution code ---*/
 
-  /* "cvcf.pyx":152
- *             alt = self.fields[4]
- *             if alt == ".": alt = []
- *             else: alt = alt.upper().split(',')             # <<<<<<<<<<<<<<
- *             return alt
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":46
+ * #
  * 
+ * from collections import namedtuple, defaultdict             # <<<<<<<<<<<<<<
+ * from operator import itemgetter
+ * import sys, re, copy, bisect
  */
-  __pyx_k_tuple_10 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 152; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_10));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_10, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_10));
+  __pyx_t_1 = PyList_New(2); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__namedtuple));
+  PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_n_s__namedtuple));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__namedtuple));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__defaultdict));
+  PyList_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_n_s__defaultdict));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__defaultdict));
+  __pyx_t_2 = __Pyx_Import(((PyObject *)__pyx_n_s__collections), ((PyObject *)__pyx_t_1)); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__namedtuple); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__namedtuple, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__defaultdict); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__defaultdict, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 46; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
 
-  /* "cvcf.pyx":168
- *             # postpone checking that filters exist.  Encode missing filter or no filtering as empty list
- *             if f == b"." or f == b"PASS" or f == b"0": return []
- *             else: return f.split(';')             # <<<<<<<<<<<<<<
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":47
+ * 
+ * from collections import namedtuple, defaultdict
+ * from operator import itemgetter             # <<<<<<<<<<<<<<
+ * import sys, re, copy, bisect
  * 
- *     property info:
  */
-  __pyx_k_tuple_12 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_12)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 168; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_12));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_12, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_12));
+  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__itemgetter));
+  PyList_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_n_s__itemgetter));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__itemgetter));
+  __pyx_t_1 = __Pyx_Import(((PyObject *)__pyx_n_s__operator), ((PyObject *)__pyx_t_2)); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__itemgetter); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__itemgetter, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 47; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":176
- *             info = {}
- *             if col != b".":
- *                 for blurp in col.split(';'):             # <<<<<<<<<<<<<<
- *                     elts = blurp.split('=')
- *                     if len(elts) == 1: v = None
- */
-  __pyx_k_tuple_13 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 176; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_13));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_13, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_13));
-
-  /* "cvcf.pyx":177
- *             if col != b".":
- *                 for blurp in col.split(';'):
- *                     elts = blurp.split('=')             # <<<<<<<<<<<<<<
- *                     if len(elts) == 1: v = None
- *                     elif len(elts) == 2: v = elts[1]
- */
-  __pyx_k_tuple_15 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 177; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_15));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
-  PyTuple_SET_ITEM(__pyx_k_tuple_15, 0, ((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_15));
-
-  /* "cvcf.pyx":186
- *     property format:
- *          def __get__(self):
- *              return self.fields[8].split(':')             # <<<<<<<<<<<<<<
- * 
- *     property samples:
- */
-  __pyx_k_tuple_16 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_16)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 186; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_16));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_16, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_16));
-
-  /* "cvcf.pyx":195
- * 
- *         # parse sample columns
- *         values = self.fields[self.vcf._sample2column[key]].split(':')             # <<<<<<<<<<<<<<
- *         alt = self.alt
- *         format = self.format
- */
-  __pyx_k_tuple_17 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_17)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 195; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_17));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_17, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_17));
-
-  /* "cvcf.pyx":308
- *     def __init__(self, _copy=None, reference=None, regions=None, lines=None, leftalign=False):
- *         # make error identifiers accessible by name
- *         for id in self._errors.keys(): self.__dict__[self._errors[id].split(':')[0]] = id             # <<<<<<<<<<<<<<
- *         if _copy != None:
- *             self._leftalign = _copy._leftalign
- */
-  __pyx_k_tuple_23 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_23)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 308; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_23));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_23, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_23));
-
-  /* "cvcf.pyx":329
- *     def error(self,line,error,opt=None):
- *         if error in self._ignored_errors: return
- *         errorlabel, errorstring = self._errors[error].split(':')             # <<<<<<<<<<<<<<
- *         if opt: errorstring = errorstring % opt
- *         errwarn = ["Error","Warning"][error in self._warn_errors]
- */
-  __pyx_k_tuple_24 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_24)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 329; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_24));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_24, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_24));
-
-  /* "cvcf.pyx":338
- *     def parse_format(self,line,format,filter=False):
- *         if self._version == 40:
- *             if not format.startswith('<'):             # <<<<<<<<<<<<<<
- *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
- *                 format = "<"+format
- */
-  __pyx_k_tuple_28 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_28)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 338; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_28));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_27));
-  PyTuple_SET_ITEM(__pyx_k_tuple_28, 0, ((PyObject *)__pyx_kp_s_27));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_27));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_28));
-
-  /* "cvcf.pyx":341
- *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
- *                 format = "<"+format
- *             if not format.endswith('>'):             # <<<<<<<<<<<<<<
- *                 self.error(line,self.V40_MISSING_ANGLE_BRACKETS)
- *                 format += ">"
- */
-  __pyx_k_tuple_31 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_31)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 341; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_31));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_30));
-  PyTuple_SET_ITEM(__pyx_k_tuple_31, 0, ((PyObject *)__pyx_kp_s_30));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_30));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_31));
-
-  /* "cvcf.pyx":348
- *         idx = 0
- *         while len(format.strip())>0:
- *             elts = format.strip().split(',')             # <<<<<<<<<<<<<<
- *             first, rest = elts[0], ','.join(elts[1:])
- *             if first.find('=') == -1 or (first.find('"')>=0 and first.find('=') > first.find('"')):
- */
-  __pyx_k_tuple_32 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_32)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 348; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_32));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_32, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_32));
-
-  /* "cvcf.pyx":350
- *             elts = format.strip().split(',')
- *             first, rest = elts[0], ','.join(elts[1:])
- *             if first.find('=') == -1 or (first.find('"')>=0 and first.find('=') > first.find('"')):             # <<<<<<<<<<<<<<
- *                 if self._version == 40: self.error(line,self.V40_FORMAT_MUST_HAVE_NAMED_FIELDS)
- *                 if idx == 4: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
- */
-  __pyx_k_tuple_33 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_33)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 350; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_33));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_36));
-  __pyx_k_tuple_37 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_37)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 350; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_37));
-
-  /* "cvcf.pyx":354
- *                 if idx == 4: self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
- *                 first = ["ID=","Number=","Type=","Description="][idx] + first
- *             if first.startswith('ID='):            data['id'] = first.split('=')[1]             # <<<<<<<<<<<<<<
- *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]
- *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
- */
-  __pyx_k_tuple_44 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_44)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 354; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_44));
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-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_45));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_45));
-
-  /* "cvcf.pyx":355
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- *             if first.startswith('ID='):            data['id'] = first.split('=')[1]
- *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]             # <<<<<<<<<<<<<<
- *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
- *             elif first.startswith('Description='):
- */
-  __pyx_k_tuple_46 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_46)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 355; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_46));
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-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_47));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_47));
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-  /* "cvcf.pyx":356
- *             if first.startswith('ID='):            data['id'] = first.split('=')[1]
- *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]
- *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]             # <<<<<<<<<<<<<<
- *             elif first.startswith('Description='):
- *                 elts = format.split('"')
- */
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_49));
-
-  /* "cvcf.pyx":357
- *             elif first.startswith('Number='):      data['number'] = first.split('=')[1]
- *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
- *             elif first.startswith('Description='):             # <<<<<<<<<<<<<<
- *                 elts = format.split('"')
- *                 if len(elts)<3:
- */
-  __pyx_k_tuple_50 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_50)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 357; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_50));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_43));
-  PyTuple_SET_ITEM(__pyx_k_tuple_50, 0, ((PyObject *)__pyx_kp_s_43));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_43));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_50));
-
-  /* "cvcf.pyx":358
- *             elif first.startswith('Type='):        data['type'] = first.split('=')[1]
- *             elif first.startswith('Description='):
- *                 elts = format.split('"')             # <<<<<<<<<<<<<<
- *                 if len(elts)<3:
- *                     self.error(line,self.FORMAT_MISSING_QUOTES)
- */
-  __pyx_k_tuple_51 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_51)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 358; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_51));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_34));
-  PyTuple_SET_ITEM(__pyx_k_tuple_51, 0, ((PyObject *)__pyx_kp_s_34));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_34));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_51));
-
-  /* "cvcf.pyx":361
- *                 if len(elts)<3:
- *                     self.error(line,self.FORMAT_MISSING_QUOTES)
- *                     elts = first.split('=') + [rest]             # <<<<<<<<<<<<<<
- *                 data['descr'] = elts[1]
- *                 rest = '"'.join(elts[2:])
- */
-  __pyx_k_tuple_53 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_53)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 361; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_53));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
-  PyTuple_SET_ITEM(__pyx_k_tuple_53, 0, ((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_53));
-
-  /* "cvcf.pyx":364
- *                 data['descr'] = elts[1]
- *                 rest = '"'.join(elts[2:])
- *                 if rest.startswith(','): rest = rest[1:]             # <<<<<<<<<<<<<<
- *             else:
- *                 self.error(line,self.BADLY_FORMATTED_FORMAT_STRING)
- */
-  __pyx_k_tuple_54 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_54)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 364; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_54));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_54, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_54));
-
-  /* "cvcf.pyx":474
- *         # snip off trailing missing data
- *         while len(output) > 1:
- *             last = output[-1].replace(',','').replace('.','')             # <<<<<<<<<<<<<<
- *             if len(last)>0: break
- *             output = output[:-1]
- */
-  __pyx_k_tuple_67 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_67)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_67));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_67, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_1));
-  PyTuple_SET_ITEM(__pyx_k_tuple_67, 1, ((PyObject *)__pyx_kp_s_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_67));
-  __pyx_k_tuple_68 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_68)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 474; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_68));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_9));
-  PyTuple_SET_ITEM(__pyx_k_tuple_68, 0, ((PyObject *)__pyx_kp_s_9));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_9));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_1));
-  PyTuple_SET_ITEM(__pyx_k_tuple_68, 1, ((PyObject *)__pyx_kp_s_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_68));
-
-  /* "cvcf.pyx":490
- * 
- *     def parse_header( self, line ):
- *         assert line.startswith('##')             # <<<<<<<<<<<<<<
- *         elts = line[2:].split('=')
- *         key = elts[0].strip()
- */
-  __pyx_k_tuple_74 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_74)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 490; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_74));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_73));
-  PyTuple_SET_ITEM(__pyx_k_tuple_74, 0, ((PyObject *)__pyx_kp_s_73));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_73));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_74));
-
-  /* "cvcf.pyx":491
- *     def parse_header( self, line ):
- *         assert line.startswith('##')
- *         elts = line[2:].split('=')             # <<<<<<<<<<<<<<
- *         key = elts[0].strip()
- *         value = '='.join(elts[1:]).strip()
- */
-  __pyx_k_tuple_75 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_75)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 491; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_75));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
-  PyTuple_SET_ITEM(__pyx_k_tuple_75, 0, ((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_75));
-
-  /* "cvcf.pyx":526
- * 
- *     def parse_heading( self, line ):
- *         assert line.startswith('#')             # <<<<<<<<<<<<<<
- *         assert not line.startswith('##')
- *         headings = line[1:].split('\t')
- */
-  __pyx_k_tuple_83 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_83)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 526; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_83));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_82));
-  PyTuple_SET_ITEM(__pyx_k_tuple_83, 0, ((PyObject *)__pyx_kp_s_82));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_82));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_83));
-
-  /* "cvcf.pyx":527
- *     def parse_heading( self, line ):
- *         assert line.startswith('#')
- *         assert not line.startswith('##')             # <<<<<<<<<<<<<<
- *         headings = line[1:].split('\t')
- *         if len(headings)==1 and len(line[1:].split()) >= 9:
- */
-  __pyx_k_tuple_84 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_84)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 527; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_84));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_73));
-  PyTuple_SET_ITEM(__pyx_k_tuple_84, 0, ((PyObject *)__pyx_kp_s_73));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_73));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_84));
-
-  /* "cvcf.pyx":528
- *         assert line.startswith('#')
- *         assert not line.startswith('##')
- *         headings = line[1:].split('\t')             # <<<<<<<<<<<<<<
- *         if len(headings)==1 and len(line[1:].split()) >= 9:
- *             self.error(line,self.HEADING_NOT_SEPARATED_BY_TABS)
- */
-  __pyx_k_tuple_86 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_86)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 528; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_86));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_85));
-  PyTuple_SET_ITEM(__pyx_k_tuple_86, 0, ((PyObject *)__pyx_kp_s_85));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_85));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_86));
-
-  /* "cvcf.pyx":581
- *             if value is not None: self.error(line,self.ERROR_FLAG_HAS_VALUE)
- *             return []
- *         values = value.split(',')             # <<<<<<<<<<<<<<
- *         # deal with trailing data in some early VCF files
- *         if f.type in ["Float","Integer"] and len(values)>0 and values[-1].find(';') > -1:
- */
-  __pyx_k_tuple_94 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_94)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 581; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_94));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_94, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_94));
-
-  /* "cvcf.pyx":583
- *         values = value.split(',')
- *         # deal with trailing data in some early VCF files
- *         if f.type in ["Float","Integer"] and len(values)>0 and values[-1].find(';') > -1:             # <<<<<<<<<<<<<<
- *             self.error(line,self.ERROR_TRAILING_DATA,values[-1])
- *             values[-1] = values[-1].split(';')[0]
- */
-  __pyx_k_tuple_95 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_95)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 583; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_95));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_95, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_95));
-
-  /* "cvcf.pyx":585
- *         if f.type in ["Float","Integer"] and len(values)>0 and values[-1].find(';') > -1:
- *             self.error(line,self.ERROR_TRAILING_DATA,values[-1])
- *             values[-1] = values[-1].split(';')[0]             # <<<<<<<<<<<<<<
- *         if f.type == "Integer":
- *             for idx,v in enumerate(values):
- */
-  __pyx_k_tuple_96 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_96)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 585; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_96));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_96, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_96));
-
-  /* "cvcf.pyx":623
- * 
- *     def parse_data( self, line, lineparse=False ):
- *         cols = line.split('\t')             # <<<<<<<<<<<<<<
- *         if len(cols) != len(self._samples)+9:
- *             # gracefully deal with absent FORMAT column
- */
-  __pyx_k_tuple_100 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_100)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 623; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_100));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_85));
-  PyTuple_SET_ITEM(__pyx_k_tuple_100, 0, ((PyObject *)__pyx_kp_s_85));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_85));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_100));
-
-  /* "cvcf.pyx":668
- *         # convert v3.3 to v4.0 alleles below
- *         if cols[4] == ".": alt = []
- *         else: alt = cols[4].upper().split(',')             # <<<<<<<<<<<<<<
- * 
- *         if cols[5] == ".": qual = -1
- */
-  __pyx_k_tuple_104 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_104)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 668; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_104));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_2));
-  PyTuple_SET_ITEM(__pyx_k_tuple_104, 0, ((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_2));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_104));
-
-  /* "cvcf.pyx":677
- *         # postpone checking that filters exist.  Encode missing filter or no filtering as empty list
- *         if cols[6] == "." or cols[6] == "PASS" or cols[6] == "0": filter = []
- *         else: filter = cols[6].split(';')             # <<<<<<<<<<<<<<
- * 
- *         # dictionary of keys, and list of values
- */
-  __pyx_k_tuple_105 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_105)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 677; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_105));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_105, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_105));
-
-  /* "cvcf.pyx":682
- *         info = {}
- *         if cols[7] != ".":
- *             for blurp in cols[7].split(';'):             # <<<<<<<<<<<<<<
- *                 elts = blurp.split('=')
- *                 if len(elts) == 1: v = None
- */
-  __pyx_k_tuple_106 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_106)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 682; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_106));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_11));
-  PyTuple_SET_ITEM(__pyx_k_tuple_106, 0, ((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_11));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_106));
-
-  /* "cvcf.pyx":683
- *         if cols[7] != ".":
- *             for blurp in cols[7].split(';'):
- *                 elts = blurp.split('=')             # <<<<<<<<<<<<<<
- *                 if len(elts) == 1: v = None
- *                 elif len(elts) == 2: v = elts[1]
- */
-  __pyx_k_tuple_107 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_107)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 683; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_107));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_14));
-  PyTuple_SET_ITEM(__pyx_k_tuple_107, 0, ((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_14));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_107));
-
-  /* "cvcf.pyx":691
- *         # Gracefully deal with absent FORMAT column
- *         if cols[8] == "": format = []
- *         else: format = cols[8].split(':')             # <<<<<<<<<<<<<<
- * 
- *         # check: all filters are defined
- */
-  __pyx_k_tuple_108 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_108)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 691; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_108));
-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_4));
-  PyTuple_SET_ITEM(__pyx_k_tuple_108, 0, ((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_4));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_108));
-
-  /* "cvcf.pyx":708
- *             for a in alt:
- *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
- *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference             # <<<<<<<<<<<<<<
- *                 elif a.startswith('D'): # allow D<seq> and D<num>
- *                     have_deletions = True
- */
-  __pyx_k_tuple_109 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_109)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 708; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_109));
-  __Pyx_INCREF(((PyObject *)__pyx_n_s__I));
-  PyTuple_SET_ITEM(__pyx_k_tuple_109, 0, ((PyObject *)__pyx_n_s__I));
-  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__I));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_109));
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-  /* "cvcf.pyx":709
- *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
- *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
- *                 elif a.startswith('D'): # allow D<seq> and D<num>             # <<<<<<<<<<<<<<
- *                     have_deletions = True
- *                     try:
- */
-  __pyx_k_tuple_110 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_110)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 709; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_110));
-  __Pyx_INCREF(((PyObject *)__pyx_n_s__D));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_110));
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-  /* "cvcf.pyx":789
- *         for sample in cols[9:]:
- *             dict = {}
- *             values = sample.split(':')             # <<<<<<<<<<<<<<
- *             if len(values) > len(format):
- *                 self.error(line,self.BAD_NUMBER_OF_VALUES,"(found %s values in element %s; expected %s)" % (len(values),sample,len(format)))
- */
-  __pyx_k_tuple_114 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_114)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 789; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_114));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_114));
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-  /* "cvcf.pyx":855
- *         for line in stream:
- *             self._lineno += 1
- *             if line.startswith('##'):             # <<<<<<<<<<<<<<
- *                 self.parse_header( line.strip() )
- *             elif line.startswith('#'):
- */
-  __pyx_k_tuple_116 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_116)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 855; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_116));
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-  /* "cvcf.pyx":857
- *             if line.startswith('##'):
- *                 self.parse_header( line.strip() )
- *             elif line.startswith('#'):             # <<<<<<<<<<<<<<
- *                 self.parse_heading( line.strip() )
- *                 self.enter_default_format()
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-  __pyx_k_tuple_117 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_117)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 857; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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- * 
- *     def setversion(self, version):
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- */
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_120));
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-  /* "cvcf.pyx":999
- *         '''
- * 
- *         raise NotImplementedError( "needs to be checked" )             # <<<<<<<<<<<<<<
- * 
- *         chrom, pos = record.chrom, record.pos
- */
-  __pyx_k_tuple_123 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_123)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 999; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_123));
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- *             for a in alt:
- *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
- *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference             # <<<<<<<<<<<<<<
- *                 elif a.startswith('D'): # allow D<seq> and D<num>
- *                     have_deletions = True
- */
-  __pyx_k_tuple_124 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_124)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1040; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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- *                 if len(a) == 1: a = a + ref[1:]                       # SNP; add trailing reference
- *                 elif a.startswith('I'): a = ref[0] + a[1:] + ref[1:]  # insertion just beyond pos; add first and trailing reference
- *                 elif a.startswith('D'): # allow D<seq> and D<num>             # <<<<<<<<<<<<<<
- *                     have_deletions = True
- *                     try:
- */
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_125));
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-  /* "cvcf.pyx":54
- * import pysam
- * 
- * gtsRegEx = re.compile("[|/\\\\]")             # <<<<<<<<<<<<<<
- * alleleRegEx = re.compile('^[ACGTN]+$')
- * 
- */
-  __pyx_k_tuple_127 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_127)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_127));
-
-  /* "cvcf.pyx":55
- * 
- * gtsRegEx = re.compile("[|/\\\\]")
- * alleleRegEx = re.compile('^[ACGTN]+$')             # <<<<<<<<<<<<<<
- * 
- * # Utility function.  Uses 0-based coordinates
- */
-  __pyx_k_tuple_129 = PyTuple_New(1); if (unlikely(!__pyx_k_tuple_129)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_INCREF(((PyObject *)__pyx_kp_s_128));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_129));
-
-  /* "cvcf.pyx":86
- * 
- * 
- * FORMAT = namedtuple('FORMAT','id numbertype number type description missingvalue')             # <<<<<<<<<<<<<<
- * 
- * ###########################################################################################################
- */
-  __pyx_k_tuple_131 = PyTuple_New(2); if (unlikely(!__pyx_k_tuple_131)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_k_tuple_131));
-  __Pyx_INCREF(((PyObject *)__pyx_n_s__FORMAT));
-  PyTuple_SET_ITEM(__pyx_k_tuple_131, 0, ((PyObject *)__pyx_n_s__FORMAT));
-  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__FORMAT));
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-  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_130));
-  __Pyx_GIVEREF(((PyObject *)__pyx_k_tuple_131));
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-  return -1;
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-static int __Pyx_InitGlobals(void) {
-  #if PY_VERSION_HEX < 0x02040000
-  if (unlikely(__Pyx_Py23SetsImport() < 0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  #endif
-  if (__Pyx_InitStrings(__pyx_string_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-  __pyx_int_2 = PyInt_FromLong(2); if (unlikely(!__pyx_int_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_3 = PyInt_FromLong(3); if (unlikely(!__pyx_int_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-  __pyx_int_6 = PyInt_FromLong(6); if (unlikely(!__pyx_int_6)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_7 = PyInt_FromLong(7); if (unlikely(!__pyx_int_7)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_8 = PyInt_FromLong(8); if (unlikely(!__pyx_int_8)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_9 = PyInt_FromLong(9); if (unlikely(!__pyx_int_9)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_neg_1 = PyInt_FromLong(-1); if (unlikely(!__pyx_int_neg_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_10 = PyInt_FromLong(10); if (unlikely(!__pyx_int_10)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-  __pyx_int_13 = PyInt_FromLong(13); if (unlikely(!__pyx_int_13)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_14 = PyInt_FromLong(14); if (unlikely(!__pyx_int_14)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_15 = PyInt_FromLong(15); if (unlikely(!__pyx_int_15)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-  __pyx_int_17 = PyInt_FromLong(17); if (unlikely(!__pyx_int_17)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-  __pyx_int_20 = PyInt_FromLong(20); if (unlikely(!__pyx_int_20)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_21 = PyInt_FromLong(21); if (unlikely(!__pyx_int_21)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_22 = PyInt_FromLong(22); if (unlikely(!__pyx_int_22)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_23 = PyInt_FromLong(23); if (unlikely(!__pyx_int_23)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_24 = PyInt_FromLong(24); if (unlikely(!__pyx_int_24)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_25 = PyInt_FromLong(25); if (unlikely(!__pyx_int_25)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_26 = PyInt_FromLong(26); if (unlikely(!__pyx_int_26)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_27 = PyInt_FromLong(27); if (unlikely(!__pyx_int_27)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_28 = PyInt_FromLong(28); if (unlikely(!__pyx_int_28)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
-  __pyx_int_29 = PyInt_FromLong(29); if (unlikely(!__pyx_int_29)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;};
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-{
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- * from collections import namedtuple, defaultdict             # <<<<<<<<<<<<<<
- * from operator import itemgetter
- * import sys, re, copy, bisect
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-
-  /* "cvcf.pyx":48
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":48
  * from collections import namedtuple, defaultdict
  * from operator import itemgetter
  * import sys, re, copy, bisect             # <<<<<<<<<<<<<<
@@ -24293,7 +23824,7 @@ PyMODINIT_FUNC PyInit_cvcf(void)
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":52
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":52
  * cimport ctabix
  * cimport TabProxies
  * import pysam             # <<<<<<<<<<<<<<
@@ -24305,7 +23836,7 @@ PyMODINIT_FUNC PyInit_cvcf(void)
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   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":54
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":54
  * import pysam
  * 
  * gtsRegEx = re.compile("[|/\\\\]")             # <<<<<<<<<<<<<<
@@ -24317,966 +23848,1261 @@ PyMODINIT_FUNC PyInit_cvcf(void)
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+  __pyx_t_1 = PyTuple_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_73));
+  PyTuple_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_kp_s_73));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_73));
+  __pyx_t_3 = PyObject_Call(__pyx_t_2, __pyx_t_1, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__gtsRegEx, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__gtsRegEx, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 54; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":55
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":55
  * 
  * gtsRegEx = re.compile("[|/\\\\]")
  * alleleRegEx = re.compile('^[ACGTN]+$')             # <<<<<<<<<<<<<<
  * 
  * # Utility function.  Uses 0-based coordinates
  */
-  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__re); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = __Pyx_GetName(__pyx_m, __pyx_n_s__re); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_1 = PyObject_GetAttr(__pyx_t_3, __pyx_n_s__compile); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_GetAttr(__pyx_t_1, __pyx_n_s__compile); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_74));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_kp_s_74));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_74));
+  __pyx_t_2 = PyObject_Call(__pyx_t_1, __pyx_t_3, NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(__pyx_t_2, ((PyObject *)__pyx_k_tuple_129), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__alleleRegEx, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__alleleRegEx, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 55; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-  /* "cvcf.pyx":58
- * 
- * # Utility function.  Uses 0-based coordinates
- * def get_sequence(chrom, start, end, fa):             # <<<<<<<<<<<<<<
- *     # obtain sequence from .fa file, without truncation
- *     if end<=start: return ""
- */
-  __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_4cvcf_get_sequence, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__get_sequence, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 58; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-
-  /* "cvcf.pyx":68
- * 
- * # Utility function.  Parses a region string
- * def parse_regions( string ):             # <<<<<<<<<<<<<<
- *     result = []
- *     for r in string.split(','):
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-  __pyx_t_1 = PyCFunction_NewEx(&__pyx_mdef_4cvcf_1parse_regions, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__parse_regions, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 68; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":86
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":86
  * 
  * 
  * FORMAT = namedtuple('FORMAT','id numbertype number type description missingvalue')             # <<<<<<<<<<<<<<
  * 
  * ###########################################################################################################
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-  __pyx_t_1 = __Pyx_GetName(__pyx_m, __pyx_n_s__namedtuple); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_t_2 = PyObject_Call(__pyx_t_1, ((PyObject *)__pyx_k_tuple_131), NULL); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_2 = __Pyx_GetName(__pyx_m, __pyx_n_s__namedtuple); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(__pyx_t_2);
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__FORMAT, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(((PyObject *)__pyx_n_s__FORMAT));
+  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_n_s__FORMAT));
+  __Pyx_GIVEREF(((PyObject *)__pyx_n_s__FORMAT));
+  __Pyx_INCREF(((PyObject *)__pyx_kp_s_75));
+  PyTuple_SET_ITEM(__pyx_t_3, 1, ((PyObject *)__pyx_kp_s_75));
+  __Pyx_GIVEREF(((PyObject *)__pyx_kp_s_75));
+  __pyx_t_1 = PyObject_Call(__pyx_t_2, __pyx_t_3, NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_1);
   __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__FORMAT, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 86; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":232
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":232
  *         return r
  * 
  * class VCF(object):             # <<<<<<<<<<<<<<
  * 
  *     # types
  */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
+  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_INCREF(__pyx_builtin_object);
+  PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_builtin_object);
+  __Pyx_GIVEREF(__pyx_builtin_object);
+  __pyx_t_2 = __Pyx_CreateClass(__pyx_t_3, ((PyObject *)__pyx_t_1), __pyx_n_s__VCF, "cvcf"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":235
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":235
  * 
  *     # types
  *     NT_UNKNOWN = 0             # <<<<<<<<<<<<<<
  *     NT_NUMBER = 1
  *     NT_ALLELES = 2
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_UNKNOWN, __pyx_int_0) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 235; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_UNKNOWN, __pyx_int_0) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 235; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":236
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":236
  *     # types
  *     NT_UNKNOWN = 0
  *     NT_NUMBER = 1             # <<<<<<<<<<<<<<
  *     NT_ALLELES = 2
  *     NT_NR_ALLELES = 3
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_NUMBER, __pyx_int_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 236; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_NUMBER, __pyx_int_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 236; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":237
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":237
  *     NT_UNKNOWN = 0
  *     NT_NUMBER = 1
  *     NT_ALLELES = 2             # <<<<<<<<<<<<<<
  *     NT_NR_ALLELES = 3
  *     NT_GENOTYPES = 4
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_ALLELES, __pyx_int_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_ALLELES, __pyx_int_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 237; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":238
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":238
  *     NT_NUMBER = 1
  *     NT_ALLELES = 2
  *     NT_NR_ALLELES = 3             # <<<<<<<<<<<<<<
  *     NT_GENOTYPES = 4
  *     NT_PHASED_GENOTYPES = 5
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_NR_ALLELES, __pyx_int_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 238; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_NR_ALLELES, __pyx_int_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 238; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":239
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":239
  *     NT_ALLELES = 2
  *     NT_NR_ALLELES = 3
  *     NT_GENOTYPES = 4             # <<<<<<<<<<<<<<
  *     NT_PHASED_GENOTYPES = 5
  * 
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_GENOTYPES, __pyx_int_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_GENOTYPES, __pyx_int_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 239; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":240
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":240
  *     NT_NR_ALLELES = 3
  *     NT_GENOTYPES = 4
  *     NT_PHASED_GENOTYPES = 5             # <<<<<<<<<<<<<<
  * 
  *     _errors = { 0:"UNKNOWN_FORMAT_STRING:Unknown file format identifier",
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__NT_PHASED_GENOTYPES, __pyx_int_5) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__NT_PHASED_GENOTYPES, __pyx_int_5) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 240; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":242
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":242
  *     NT_PHASED_GENOTYPES = 5
  * 
  *     _errors = { 0:"UNKNOWN_FORMAT_STRING:Unknown file format identifier",             # <<<<<<<<<<<<<<
  *                 1:"BADLY_FORMATTED_FORMAT_STRING:Formatting error in the format string",
  *                 2:"BADLY_FORMATTED_HEADING:Did not find 9 required headings (CHROM, POS, ..., FORMAT) %s",
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_0, ((PyObject *)__pyx_kp_s_132)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_1, ((PyObject *)__pyx_kp_s_133)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_2, ((PyObject *)__pyx_kp_s_134)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_3, ((PyObject *)__pyx_kp_s_135)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_4, ((PyObject *)__pyx_kp_s_136)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_5, ((PyObject *)__pyx_kp_s_137)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_6, ((PyObject *)__pyx_kp_s_138)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_7, ((PyObject *)__pyx_kp_s_139)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_8, ((PyObject *)__pyx_kp_s_140)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_9, ((PyObject *)__pyx_kp_s_141)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_10, ((PyObject *)__pyx_kp_s_142)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_11, ((PyObject *)__pyx_kp_s_143)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_12, ((PyObject *)__pyx_kp_s_144)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_13, ((PyObject *)__pyx_kp_s_145)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_14, ((PyObject *)__pyx_kp_s_146)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_15, ((PyObject *)__pyx_kp_s_147)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_16, ((PyObject *)__pyx_kp_s_148)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_17, ((PyObject *)__pyx_kp_s_149)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_18, ((PyObject *)__pyx_kp_s_150)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_19, ((PyObject *)__pyx_kp_s_151)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_20, ((PyObject *)__pyx_kp_s_152)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_21, ((PyObject *)__pyx_kp_s_153)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_22, ((PyObject *)__pyx_kp_s_154)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_23, ((PyObject *)__pyx_kp_s_155)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_24, ((PyObject *)__pyx_kp_s_156)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_25, ((PyObject *)__pyx_kp_s_157)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_26, ((PyObject *)__pyx_kp_s_158)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_27, ((PyObject *)__pyx_kp_s_159)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_28, ((PyObject *)__pyx_kp_s_160)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_29, ((PyObject *)__pyx_kp_s_161)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyDict_SetItem(__pyx_t_1, __pyx_int_30, ((PyObject *)__pyx_kp_s_162)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___errors, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_0, ((PyObject *)__pyx_kp_s_76)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_1, ((PyObject *)__pyx_kp_s_77)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_2, ((PyObject *)__pyx_kp_s_78)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_3, ((PyObject *)__pyx_kp_s_79)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_4, ((PyObject *)__pyx_kp_s_80)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_5, ((PyObject *)__pyx_kp_s_81)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_6, ((PyObject *)__pyx_kp_s_82)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_7, ((PyObject *)__pyx_kp_s_83)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_8, ((PyObject *)__pyx_kp_s_84)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_9, ((PyObject *)__pyx_kp_s_85)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_10, ((PyObject *)__pyx_kp_s_86)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_11, ((PyObject *)__pyx_kp_s_87)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_12, ((PyObject *)__pyx_kp_s_88)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_13, ((PyObject *)__pyx_kp_s_89)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_14, ((PyObject *)__pyx_kp_s_90)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_15, ((PyObject *)__pyx_kp_s_91)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_16, ((PyObject *)__pyx_kp_s_92)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_17, ((PyObject *)__pyx_kp_s_93)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_18, ((PyObject *)__pyx_kp_s_94)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_19, ((PyObject *)__pyx_kp_s_95)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_20, ((PyObject *)__pyx_kp_s_96)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_21, ((PyObject *)__pyx_kp_s_97)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_22, ((PyObject *)__pyx_kp_s_98)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_23, ((PyObject *)__pyx_kp_s_99)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_24, ((PyObject *)__pyx_kp_s_100)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_25, ((PyObject *)__pyx_kp_s_101)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_26, ((PyObject *)__pyx_kp_s_102)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_27, ((PyObject *)__pyx_kp_s_103)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_28, ((PyObject *)__pyx_kp_s_104)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_29, ((PyObject *)__pyx_kp_s_105)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyDict_SetItem(__pyx_t_3, __pyx_int_30, ((PyObject *)__pyx_kp_s_106)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___errors, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 242; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":276
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":276
  * 
  *     # tag-value pairs; tags are not unique; does not include fileformat, INFO, FILTER or FORMAT fields
  *     _header = []             # <<<<<<<<<<<<<<
  * 
  *     # version number; 33=v3.3; 40=v4.0
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___header, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___header, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 276; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":279
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":279
  * 
  *     # version number; 33=v3.3; 40=v4.0
  *     _version = 40             # <<<<<<<<<<<<<<
  * 
  *     # info, filter and format data
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___version, __pyx_int_40) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 279; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___version, __pyx_int_40) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 279; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":282
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":282
  * 
  *     # info, filter and format data
  *     _info = {}             # <<<<<<<<<<<<<<
  *     _filter = {}
  *     _format = {}
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___info, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___info, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 282; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":283
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":283
  *     # info, filter and format data
  *     _info = {}
  *     _filter = {}             # <<<<<<<<<<<<<<
  *     _format = {}
  * 
  */
-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___filter, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___filter, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 283; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":284
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":284
  *     _info = {}
  *     _filter = {}
  *     _format = {}             # <<<<<<<<<<<<<<
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  *     # header; and required columns
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-  __pyx_t_1 = PyDict_New(); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 284; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___format, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 284; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyDict_New(); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 284; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___format, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 284; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":287
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":287
  * 
  *     # header; and required columns
  *     _required = ["CHROM","POS","ID","REF","ALT","QUAL","FILTER","INFO","FORMAT"]             # <<<<<<<<<<<<<<
  *     _samples = []
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-  __pyx_t_1 = PyList_New(9); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __pyx_t_3 = PyList_New(9); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__CHROM));
-  PyList_SET_ITEM(__pyx_t_1, 0, ((PyObject *)__pyx_n_s__CHROM));
+  PyList_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_n_s__CHROM));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__CHROM));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__POS));
-  PyList_SET_ITEM(__pyx_t_1, 1, ((PyObject *)__pyx_n_s__POS));
+  PyList_SET_ITEM(__pyx_t_3, 1, ((PyObject *)__pyx_n_s__POS));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__POS));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__ID));
-  PyList_SET_ITEM(__pyx_t_1, 2, ((PyObject *)__pyx_n_s__ID));
+  PyList_SET_ITEM(__pyx_t_3, 2, ((PyObject *)__pyx_n_s__ID));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__ID));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__REF));
-  PyList_SET_ITEM(__pyx_t_1, 3, ((PyObject *)__pyx_n_s__REF));
+  PyList_SET_ITEM(__pyx_t_3, 3, ((PyObject *)__pyx_n_s__REF));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__REF));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__ALT));
-  PyList_SET_ITEM(__pyx_t_1, 4, ((PyObject *)__pyx_n_s__ALT));
+  PyList_SET_ITEM(__pyx_t_3, 4, ((PyObject *)__pyx_n_s__ALT));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__ALT));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__QUAL));
-  PyList_SET_ITEM(__pyx_t_1, 5, ((PyObject *)__pyx_n_s__QUAL));
+  PyList_SET_ITEM(__pyx_t_3, 5, ((PyObject *)__pyx_n_s__QUAL));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__QUAL));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__FILTER));
-  PyList_SET_ITEM(__pyx_t_1, 6, ((PyObject *)__pyx_n_s__FILTER));
+  PyList_SET_ITEM(__pyx_t_3, 6, ((PyObject *)__pyx_n_s__FILTER));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__FILTER));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__INFO));
-  PyList_SET_ITEM(__pyx_t_1, 7, ((PyObject *)__pyx_n_s__INFO));
+  PyList_SET_ITEM(__pyx_t_3, 7, ((PyObject *)__pyx_n_s__INFO));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__INFO));
   __Pyx_INCREF(((PyObject *)__pyx_n_s__FORMAT));
-  PyList_SET_ITEM(__pyx_t_1, 8, ((PyObject *)__pyx_n_s__FORMAT));
+  PyList_SET_ITEM(__pyx_t_3, 8, ((PyObject *)__pyx_n_s__FORMAT));
   __Pyx_GIVEREF(((PyObject *)__pyx_n_s__FORMAT));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___required, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___required, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 287; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":288
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":288
  *     # header; and required columns
  *     _required = ["CHROM","POS","ID","REF","ALT","QUAL","FILTER","INFO","FORMAT"]
  *     _samples = []             # <<<<<<<<<<<<<<
  * 
  *     # control behaviour
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___samples, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
+  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___samples, ((PyObject *)__pyx_t_3)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 288; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":291
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":291
  * 
  *     # control behaviour
  *     _ignored_errors = set([11])   # ERROR_UNKNOWN_KEY             # <<<<<<<<<<<<<<
  *     _warn_errors = set([])
  *     _leftalign = False
  */
-  __pyx_t_1 = PyList_New(1); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
+  __pyx_t_3 = PyList_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
   __Pyx_INCREF(__pyx_int_11);
-  PyList_SET_ITEM(__pyx_t_1, 0, __pyx_int_11);
+  PyList_SET_ITEM(__pyx_t_3, 0, __pyx_int_11);
   __Pyx_GIVEREF(__pyx_int_11);
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
-  __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PySet_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___ignored_errors, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_3));
+  __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)&PySet_Type)), __pyx_t_4, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___ignored_errors, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 291; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":292
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":292
  *     # control behaviour
  *     _ignored_errors = set([11])   # ERROR_UNKNOWN_KEY
  *     _warn_errors = set([])             # <<<<<<<<<<<<<<
  *     _leftalign = False
  * 
  */
-  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_1));
-  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __pyx_t_3 = PyList_New(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
   __Pyx_GOTREF(((PyObject *)__pyx_t_3));
-  PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_t_1));
-  __Pyx_GIVEREF(((PyObject *)__pyx_t_1));
-  __pyx_t_1 = 0;
-  __pyx_t_1 = PyObject_Call(((PyObject *)((PyObject*)(&PySet_Type))), ((PyObject *)__pyx_t_3), NULL); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __Pyx_DECREF(((PyObject *)__pyx_t_3)); __pyx_t_3 = 0;
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___warn_errors, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyTuple_New(1); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  PyTuple_SET_ITEM(__pyx_t_4, 0, ((PyObject *)__pyx_t_3));
+  __Pyx_GIVEREF(((PyObject *)__pyx_t_3));
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyObject_Call(((PyObject *)((PyObject*)&PySet_Type)), __pyx_t_4, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 292; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":293
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":293
  *     _ignored_errors = set([11])   # ERROR_UNKNOWN_KEY
  *     _warn_errors = set([])
  *     _leftalign = False             # <<<<<<<<<<<<<<
  * 
  *     # reference sequence
  */
-  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___leftalign, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___leftalign, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 293; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":296
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":296
  * 
  *     # reference sequence
  *     _reference = None             # <<<<<<<<<<<<<<
  * 
  *     # regions to include; None includes everything
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___reference, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 296; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___reference, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 296; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":299
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":299
  * 
  *     # regions to include; None includes everything
  *     _regions = None             # <<<<<<<<<<<<<<
  * 
  *     # statefull stuff
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___regions, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 299; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___regions, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 299; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":302
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":302
  * 
  *     # statefull stuff
  *     _lineno = -1             # <<<<<<<<<<<<<<
  *     _line = None
  *     _lines = None
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___lineno, __pyx_int_neg_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___lineno, __pyx_int_neg_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 302; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":303
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":303
  *     # statefull stuff
  *     _lineno = -1
  *     _line = None             # <<<<<<<<<<<<<<
  *     _lines = None
  * 
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___line, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 303; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___line, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 303; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":304
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":304
  *     _lineno = -1
  *     _line = None
  *     _lines = None             # <<<<<<<<<<<<<<
  * 
  *     def __init__(self, _copy=None, reference=None, regions=None, lines=None, leftalign=False):
  */
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___lines, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 304; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___lines, Py_None) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 304; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
 
-  /* "cvcf.pyx":306
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":306
  *     _lines = None
  * 
  *     def __init__(self, _copy=None, reference=None, regions=None, lines=None, leftalign=False):             # <<<<<<<<<<<<<<
  *         # make error identifiers accessible by name
  *         for id in self._errors.keys(): self.__dict__[self._errors[id].split(':')[0]] = id
  */
-  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_k_22 = __pyx_t_1;
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF___init__, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s____init__, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_k_13 = __pyx_t_3;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF___init__, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 306; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":327
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":327
  *         self._lines = lines
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  *     def error(self,line,error,opt=None):             # <<<<<<<<<<<<<<
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-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_1error, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__error, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_error, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__error, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 327; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":336
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":336
  *         raise ValueError(errorstring)
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  *     def parse_format(self,line,format,filter=False):             # <<<<<<<<<<<<<<
  *         if self._version == 40:
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-  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
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-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse_format, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_k_15 = __pyx_t_3;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse_format, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse_format, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 336; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":398
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":398
  * 
  * 
  *     def format_format( self, fmt, filter=False ):             # <<<<<<<<<<<<<<
  *         values = [('ID',fmt.id)]
  *         if fmt.number != None and not filter:
  */
-  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_k_60 = __pyx_t_1;
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_3format_format, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__format_format, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_k_32 = __pyx_t_4;
+  __Pyx_GIVEREF(__pyx_t_4);
+  __pyx_t_4 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_format_format, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 398; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":418
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":418
  *         return format
  * 
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  *         if fmt.numbertype == self.NT_UNKNOWN: return -1
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-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_4get_expected, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__get_expected, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_get_expected, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 418; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
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+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
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+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":429
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  * 
  * 
  *     def _add_definition(self, formatdict, key, data, line ):             # <<<<<<<<<<<<<<
  *         if key in formatdict: return
  *         self.error(line,self.ERROR_UNKNOWN_KEY,key)
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-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___add_definition, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF__add_definition, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 429; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
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+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
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+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":446
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-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__format_formatdata, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_k_36 = __pyx_t_3;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(1); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_k_37 = __pyx_t_3;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_format_formatdata, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__format_formatdata, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 446; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":480
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":480
  * 
  * 
  *     def enter_default_format(self):             # <<<<<<<<<<<<<<
  *         for f in [FORMAT('GT',self.NT_NUMBER,1,'String','Genotype','.'),
  *                   FORMAT('GQ',self.NT_NUMBER,1,'Integer','Genotype Quality',-1),
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_7enter_default_format, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s_118, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_enter_default_format, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s_69, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 480; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":489
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":489
  *                 self._format[f.id] = f
  * 
  *     def parse_header( self, line ):             # <<<<<<<<<<<<<<
  *         assert line.startswith('##')
  *         elts = line[2:].split('=')
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_8parse_header, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse_header, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse_header, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse_header, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 489; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":518
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":518
  * 
  * 
  *     def write_header( self, stream ):             # <<<<<<<<<<<<<<
  *         stream.write("##fileformat=VCFv%s.%s\n" % (self._version // 10, self._version % 10))
  *         for key,value in self._header: stream.write("##%s=%s\n" % (key,value))
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_9write_header, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__write_header, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_write_header, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__write_header, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 518; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":525
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":525
  * 
  * 
  *     def parse_heading( self, line ):             # <<<<<<<<<<<<<<
  *         assert line.startswith('#')
  *         assert not line.startswith('##')
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_10parse_heading, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 525; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse_heading, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 525; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse_heading, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 525; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 525; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse_heading, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 525; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":553
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":553
  *         self._sample2column = dict( [(y,x+9) for x,y in enumerate( self._samples ) ] )
  * 
  *     def write_heading( self, stream ):             # <<<<<<<<<<<<<<
  *         stream.write("#" + "\t".join(self._required + self._samples) + "\n")
  * 
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_11write_heading, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__write_heading, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_write_heading, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__write_heading, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 553; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":556
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":556
  *         stream.write("#" + "\t".join(self._required + self._samples) + "\n")
  * 
  *     def convertGT(self, GTstring):             # <<<<<<<<<<<<<<
  *         if GTstring == ".": return ["."]
  *         try:
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_12convertGT, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 556; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__convertGT, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 556; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_convertGT, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 556; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 556; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__convertGT, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 556; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":569
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":569
  * 
  * 
  *     def convertGTback(self, GTdata):             # <<<<<<<<<<<<<<
  *         return ''.join(map(str,GTdata))
  * 
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_13convertGTback, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 569; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__convertGTback, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 569; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_convertGTback, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 569; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 569; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__convertGTback, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 569; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":572
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":572
  *         return ''.join(map(str,GTdata))
  * 
  *     def parse_formatdata( self, key, value, formatdict, line ):             # <<<<<<<<<<<<<<
  *         # To do: check that the right number of values is present
  *         f = formatdict.get(key,None)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_14parse_formatdata, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 572; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse_formatdata, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 572; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse_formatdata, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 572; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 572; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse_formatdata, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 572; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":615
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":615
  * 
  * 
  *     def inregion(self, chrom, pos):             # <<<<<<<<<<<<<<
  *         if not self._regions: return True
  *         for r in self._regions:
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_15inregion, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__inregion, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_inregion, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__inregion, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 615; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":622
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":622
  * 
  * 
  *     def parse_data( self, line, lineparse=False ):             # <<<<<<<<<<<<<<
  *         cols = line.split('\t')
  *         if len(cols) != len(self._samples)+9:
  */
-  __pyx_t_1 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  __pyx_k_99 = __pyx_t_1;
-  __Pyx_GIVEREF(__pyx_t_1);
-  __pyx_t_1 = 0;
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_16parse_data, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse_data, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = __Pyx_PyBool_FromLong(0); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_k_61 = __pyx_t_3;
+  __Pyx_GIVEREF(__pyx_t_3);
+  __pyx_t_3 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse_data, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse_data, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 622; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":822
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":822
  * 
  * 
  *     def write_data(self, stream, data):             # <<<<<<<<<<<<<<
  *         required = ['chrom','pos','id','ref','alt','qual','filter','info','format'] + self._samples
  *         for k in required:
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_17write_data, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__write_data, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_write_data, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__write_data, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 822; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":851
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":851
  *         stream.write( "\t".join(output) + "\n" )
  * 
  *     def _parse_header(self, stream):             # <<<<<<<<<<<<<<
  *         self._lineno = 0
  *         for line in stream:
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_18_parse_header, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___parse_header, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF__parse_header, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___parse_header, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 851; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":864
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":864
  *         return line
  * 
  *     def _parse(self, line, stream):             # <<<<<<<<<<<<<<
  *         if len(line.strip()) > 0:
  *             d = self.parse_data( line.strip() )
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_19_parse, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s___parse, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF__parse, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s___parse, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 864; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":880
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":880
  *     ######################################################################################################
  * 
  *     def getsamples(self):             # <<<<<<<<<<<<<<
  *         """ List of samples in VCF file """
  *         return self._samples
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_20getsamples, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__getsamples, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_getsamples, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__getsamples, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 880; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":884
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":884
  *         return self._samples
  * 
  *     def setsamples(self,samples):             # <<<<<<<<<<<<<<
  *         """ List of samples in VCF file """
  *         self._samples = samples
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_21setsamples, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setsamples, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setsamples, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setsamples, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 884; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":888
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":888
  *         self._samples = samples
  * 
  *     def getheader(self):             # <<<<<<<<<<<<<<
  *         """ List of header key-value pairs (strings) """
  *         return self._header
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_22getheader, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__getheader, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_getheader, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__getheader, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 888; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":892
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":892
  *         return self._header
  * 
  *     def setheader(self,header):             # <<<<<<<<<<<<<<
  *         """ List of header key-value pairs (strings) """
  *         self._header = header
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_23setheader, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setheader, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setheader, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setheader, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 892; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":896
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":896
  *         self._header = header
  * 
  *     def getinfo(self):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##INFO tags, as VCF.FORMAT values """
  *         return self._info
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_24getinfo, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__getinfo, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_getinfo, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__getinfo, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 896; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":900
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":900
  *         return self._info
  * 
  *     def setinfo(self,info):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##INFO tags, as VCF.FORMAT values """
  *         self._info = info
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_25setinfo, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setinfo, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setinfo, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setinfo, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 900; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":904
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":904
  *         self._info = info
  * 
  *     def getformat(self):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##FORMAT tags, as VCF.FORMAT values """
  *         return self._format
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_26getformat, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__getformat, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_getformat, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__getformat, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 904; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":908
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":908
  *         return self._format
  * 
  *     def setformat(self,format):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##FORMAT tags, as VCF.FORMAT values """
  *         self._format = format
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_27setformat, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setformat, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setformat, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setformat, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 908; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":912
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":912
  *         self._format = format
  * 
  *     def getfilter(self):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##FILTER tags, as VCF.FORMAT values """
  *         return self._filter
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_28getfilter, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__getfilter, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_getfilter, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__getfilter, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 912; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":916
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":916
  *         return self._filter
  * 
  *     def setfilter(self,filter):             # <<<<<<<<<<<<<<
  *         """ Dictionary of ##FILTER tags, as VCF.FORMAT values """
  *         self._filter = filter
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_29setfilter, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setfilter, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setfilter, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setfilter, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 916; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":920
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":920
  *         self._filter = filter
  * 
  *     def setversion(self, version):             # <<<<<<<<<<<<<<
  *         if version != 33 and version != 40: raise ValueError("Can only handle v3.3 and v4.0 VCF files")
  *         self._version = version
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_30setversion, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setversion, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setversion, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setversion, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 920; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":924
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":924
  *         self._version = version
  * 
  *     def setregions(self, regions):             # <<<<<<<<<<<<<<
  *         self._regions = regions
  * 
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_31setregions, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setregions, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setregions, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setregions, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 924; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":927
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":927
  *         self._regions = regions
  * 
  *     def setreference(self, ref):             # <<<<<<<<<<<<<<
  *         """ Provide a reference sequence; a Python class supporting a fetch(chromosome, start, end) method, e.g. PySam.FastaFile """
  *         self._reference = ref
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_32setreference, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__setreference, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_setreference, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__setreference, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 927; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":931
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":931
  *         self._reference = ref
  * 
  *     def ignoreerror(self, errorstring):             # <<<<<<<<<<<<<<
  *         try:             self._ignored_errors.add(self.__dict__[errorstring])
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_33ignoreerror, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__ignoreerror, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_ignoreerror, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__ignoreerror, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 931; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":935
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":935
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  * 
  *     def warnerror(self, errorstring):             # <<<<<<<<<<<<<<
  *         try:             self._warn_errors.add(self.__dict__[errorstring])
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_34warnerror, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__warnerror, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_warnerror, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__warnerror, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 935; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":939
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":939
  *         except KeyError: raise ValueError("Invalid error string: %s" % errorstring)
  * 
  *     def parse(self, stream):             # <<<<<<<<<<<<<<
  *         """ Parse a stream of VCF-formatted lines.  Initializes class instance and return generator """
  *         last_line = self._parse_header(stream)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_35parse, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__parse, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_parse, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__parse, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 939; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":946
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":946
  *         return self._parse(last_line, stream)
  * 
  *     def write(self, stream, datagenerator):             # <<<<<<<<<<<<<<
  *         """ Writes a VCF file to a stream, using a data generator (or list) """
  *         self.write_header(stream)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_36write, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__write, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_write, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__write, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 946; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":952
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":952
  *         for data in datagenerator: self.write_data(stream,data)
  * 
  *     def writeheader(self, stream):             # <<<<<<<<<<<<<<
  *         """ Writes a VCF header """
  *         self.write_header(stream)
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_37writeheader, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__writeheader, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_writeheader, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__writeheader, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 952; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":957
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":957
  *         self.write_heading(stream)
  * 
  *     def compare_calls(self, pos1, ref1, alt1, pos2, ref2, alt2):             # <<<<<<<<<<<<<<
  *         """ Utility function: compares two calls for equality """
  *         # a variant should always be assigned to a unique position, one base before
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_38compare_calls, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__compare_calls, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_compare_calls, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__compare_calls, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 957; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":979
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":979
  * ###########################################################################################################
  * 
  *     def connect( self, filename ):             # <<<<<<<<<<<<<<
  *         '''connect to tabix file.'''
  *         self.tabixfile = pysam.Tabixfile( filename )
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_39connect, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__connect, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_connect, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__connect, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 979; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
 
-  /* "cvcf.pyx":984
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":984
  *         self._parse_header(self.tabixfile.header)
  * 
  *     def fetch(self,             # <<<<<<<<<<<<<<
  *               reference = None,
  *               start = None,
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_40fetch, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__fetch, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_3 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_fetch, NULL); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __pyx_t_4 = PyMethod_New(__pyx_t_3, 0, __pyx_t_2); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__fetch, __pyx_t_4) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 984; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
 
-  /* "cvcf.pyx":993
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":993
  *         return self.tabixfile.fetch( reference, start, end, region, parser = asVCFRecord( self ) )
  * 
  *     def validate( self, record ):             # <<<<<<<<<<<<<<
  *         '''validate vcf record.
  * 
  */
-  __pyx_t_1 = __pyx_binding_PyCFunctionType_NewEx(&__pyx_mdef_4cvcf_3VCF_41validate, NULL, __pyx_n_s__cvcf); if (unlikely(!__pyx_t_1)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(__pyx_t_1);
-  if (PyObject_SetItem(__pyx_t_2, __pyx_n_s__validate, __pyx_t_1) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
+  __pyx_t_4 = PyCFunction_New(&__pyx_mdef_4cvcf_3VCF_validate, NULL); if (unlikely(!__pyx_t_4)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_4);
+  __pyx_t_3 = PyMethod_New(__pyx_t_4, 0, __pyx_t_2); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
+  if (PyObject_SetAttr(__pyx_t_2, __pyx_n_s__validate, __pyx_t_3) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 993; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s__VCF, __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 232; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
 
-  /* "cvcf.pyx":232
- *         return r
+  /* "/ifs/devel/pysam/pysam/pysam/cvcf.pyx":1118
+ *                     pos -= 1
  * 
- * class VCF(object):             # <<<<<<<<<<<<<<
+ * __all__ = [             # <<<<<<<<<<<<<<
+ *     "VCF", "VCFRecord", ]
  * 
- *     # types
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-  /* "cvcf.pyx":1
- * #             # <<<<<<<<<<<<<<
- * # Code to read, write and edit VCF files
- * #
- */
-  __pyx_t_2 = PyDict_New(); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_GOTREF(((PyObject *)__pyx_t_2));
-  if (PyObject_SetAttr(__pyx_m, __pyx_n_s____test__, ((PyObject *)__pyx_t_2)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
-  __Pyx_DECREF(((PyObject *)__pyx_t_2)); __pyx_t_2 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_117), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__parse); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_118), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__write); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_119), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__writeheader); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_120), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__compare_calls); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_121), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__connect); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_122), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__fetch); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_123), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = PyObject_GetAttr(__pyx_m, __pyx_n_s__VCF); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __pyx_t_3 = PyObject_GetAttr(__pyx_t_2, __pyx_n_s__validate); if (unlikely(!__pyx_t_3)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_3);
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  __pyx_t_2 = __Pyx_GetAttrString(__pyx_t_3, "__doc__"); if (unlikely(!__pyx_t_2)) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_GOTREF(__pyx_t_2);
+  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
+  if (PyDict_SetItem(__pyx_t_1, ((PyObject *)__pyx_kp_u_124), __pyx_t_2) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
+  if (PyObject_SetAttr(__pyx_m, __pyx_n_s____test__, ((PyObject *)__pyx_t_1)) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 1; __pyx_clineno = __LINE__; goto __pyx_L1_error;}
+  __Pyx_DECREF(((PyObject *)__pyx_t_1)); __pyx_t_1 = 0;
 
-  /* "ctabix.pxd":2
+  /* "pysam/ctabix.pxd":2
  * 
  * cdef extern from "string.h":             # <<<<<<<<<<<<<<
  *   ctypedef int size_t
@@ -25287,6 +25113,7 @@ PyMODINIT_FUNC PyInit_cvcf(void)
   __Pyx_XDECREF(__pyx_t_1);
   __Pyx_XDECREF(__pyx_t_2);
   __Pyx_XDECREF(__pyx_t_3);
+  __Pyx_XDECREF(__pyx_t_4);
   if (__pyx_m) {
     __Pyx_AddTraceback("init cvcf");
     Py_DECREF(__pyx_m); __pyx_m = 0;
@@ -25312,6 +25139,19 @@ static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name) {
     return result;
 }
 
+static void __Pyx_RaiseDoubleKeywordsError(
+    const char* func_name,
+    PyObject* kw_name)
+{
+    PyErr_Format(PyExc_TypeError,
+        #if PY_MAJOR_VERSION >= 3
+        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
+        #else
+        "%s() got multiple values for keyword argument '%s'", func_name,
+        PyString_AS_STRING(kw_name));
+        #endif
+}
+
 static void __Pyx_RaiseArgtupleInvalid(
     const char* func_name,
     int exact,
@@ -25342,19 +25182,6 @@ static void __Pyx_RaiseArgtupleInvalid(
         func_name, more_or_less, num_expected, number, num_found);
 }
 
-static void __Pyx_RaiseDoubleKeywordsError(
-    const char* func_name,
-    PyObject* kw_name)
-{
-    PyErr_Format(PyExc_TypeError,
-        #if PY_MAJOR_VERSION >= 3
-        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
-        #else
-        "%s() got multiple values for keyword argument '%s'", func_name,
-        PyString_AS_STRING(kw_name));
-        #endif
-}
-
 static int __Pyx_ParseOptionalKeywords(
     PyObject *kwds,
     PyObject **argnames[],
@@ -25413,210 +25240,73 @@ static int __Pyx_ParseOptionalKeywords(
             }
         }
     }
-    return 0;
-arg_passed_twice:
-    __Pyx_RaiseDoubleKeywordsError(function_name, **name);
-    goto bad;
-invalid_keyword_type:
-    PyErr_Format(PyExc_TypeError,
-        "%s() keywords must be strings", function_name);
-    goto bad;
-invalid_keyword:
-    PyErr_Format(PyExc_TypeError,
-    #if PY_MAJOR_VERSION < 3
-        "%s() got an unexpected keyword argument '%s'",
-        function_name, PyString_AsString(key));
-    #else
-        "%s() got an unexpected keyword argument '%U'",
-        function_name, key);
-    #endif
-bad:
-    return -1;
-}
-
-
-static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
-    PyObject *local_type, *local_value, *local_tb;
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    PyThreadState *tstate = PyThreadState_GET();
-    local_type = tstate->curexc_type;
-    local_value = tstate->curexc_value;
-    local_tb = tstate->curexc_traceback;
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
-    if (unlikely(tstate->curexc_type))
-        goto bad;
-    #if PY_MAJOR_VERSION >= 3
-    if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
-        goto bad;
-    #endif
-    *type = local_type;
-    *value = local_value;
-    *tb = local_tb;
-    Py_INCREF(local_type);
-    Py_INCREF(local_value);
-    Py_INCREF(local_tb);
-    tmp_type = tstate->exc_type;
-    tmp_value = tstate->exc_value;
-    tmp_tb = tstate->exc_traceback;
-    tstate->exc_type = local_type;
-    tstate->exc_value = local_value;
-    tstate->exc_traceback = local_tb;
-    /* Make sure tstate is in a consistent state when we XDECREF
-       these objects (XDECREF may run arbitrary code). */
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-    return 0;
-bad:
-    *type = 0;
-    *value = 0;
-    *tb = 0;
-    Py_XDECREF(local_type);
-    Py_XDECREF(local_value);
-    Py_XDECREF(local_tb);
-    return -1;
-}
-
-
-static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
-    PyObject *tmp_type, *tmp_value, *tmp_tb;
-    PyThreadState *tstate = PyThreadState_GET();
-
-    tmp_type = tstate->curexc_type;
-    tmp_value = tstate->curexc_value;
-    tmp_tb = tstate->curexc_traceback;
-    tstate->curexc_type = type;
-    tstate->curexc_value = value;
-    tstate->curexc_traceback = tb;
-    Py_XDECREF(tmp_type);
-    Py_XDECREF(tmp_value);
-    Py_XDECREF(tmp_tb);
-}
-
-static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
-    PyThreadState *tstate = PyThreadState_GET();
-    *type = tstate->curexc_type;
-    *value = tstate->curexc_value;
-    *tb = tstate->curexc_traceback;
-
-    tstate->curexc_type = 0;
-    tstate->curexc_value = 0;
-    tstate->curexc_traceback = 0;
-}
-
-
-#if PY_MAJOR_VERSION < 3
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
-    Py_XINCREF(type);
-    Py_XINCREF(value);
-    Py_XINCREF(tb);
-    /* First, check the traceback argument, replacing None with NULL. */
-    if (tb == Py_None) {
-        Py_DECREF(tb);
-        tb = 0;
-    }
-    else if (tb != NULL && !PyTraceBack_Check(tb)) {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: arg 3 must be a traceback or None");
-        goto raise_error;
-    }
-    /* Next, replace a missing value with None */
-    if (value == NULL) {
-        value = Py_None;
-        Py_INCREF(value);
-    }
-    #if PY_VERSION_HEX < 0x02050000
-    if (!PyClass_Check(type))
-    #else
-    if (!PyType_Check(type))
-    #endif
-    {
-        /* Raising an instance.  The value should be a dummy. */
-        if (value != Py_None) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto raise_error;
-        }
-        /* Normalize to raise <class>, <instance> */
-        Py_DECREF(value);
-        value = type;
-        #if PY_VERSION_HEX < 0x02050000
-            if (PyInstance_Check(type)) {
-                type = (PyObject*) ((PyInstanceObject*)type)->in_class;
-                Py_INCREF(type);
-            }
-            else {
-                type = 0;
-                PyErr_SetString(PyExc_TypeError,
-                    "raise: exception must be an old-style class or instance");
-                goto raise_error;
-            }
-        #else
-            type = (PyObject*) Py_TYPE(type);
-            Py_INCREF(type);
-            if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
-                PyErr_SetString(PyExc_TypeError,
-                    "raise: exception class must be a subclass of BaseException");
-                goto raise_error;
-            }
-        #endif
-    }
-
-    __Pyx_ErrRestore(type, value, tb);
-    return;
-raise_error:
-    Py_XDECREF(value);
-    Py_XDECREF(type);
-    Py_XDECREF(tb);
-    return;
+    return 0;
+arg_passed_twice:
+    __Pyx_RaiseDoubleKeywordsError(function_name, **name);
+    goto bad;
+invalid_keyword_type:
+    PyErr_Format(PyExc_TypeError,
+        "%s() keywords must be strings", function_name);
+    goto bad;
+invalid_keyword:
+    PyErr_Format(PyExc_TypeError,
+    #if PY_MAJOR_VERSION < 3
+        "%s() got an unexpected keyword argument '%s'",
+        function_name, PyString_AsString(key));
+    #else
+        "%s() got an unexpected keyword argument '%U'",
+        function_name, key);
+    #endif
+bad:
+    return -1;
 }
 
-#else /* Python 3+ */
 
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
-    if (tb == Py_None) {
-        tb = 0;
-    } else if (tb && !PyTraceBack_Check(tb)) {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: arg 3 must be a traceback or None");
+static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb) {
+    PyObject *local_type, *local_value, *local_tb;
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
+    local_type = tstate->curexc_type;
+    local_value = tstate->curexc_value;
+    local_tb = tstate->curexc_traceback;
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
+    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
+    if (unlikely(tstate->curexc_type))
         goto bad;
-    }
-    if (value == Py_None)
-        value = 0;
-
-    if (PyExceptionInstance_Check(type)) {
-        if (value) {
-            PyErr_SetString(PyExc_TypeError,
-                "instance exception may not have a separate value");
-            goto bad;
-        }
-        value = type;
-        type = (PyObject*) Py_TYPE(value);
-    } else if (!PyExceptionClass_Check(type)) {
-        PyErr_SetString(PyExc_TypeError,
-            "raise: exception class must be a subclass of BaseException");
+    #if PY_MAJOR_VERSION >= 3
+    if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
         goto bad;
-    }
-
-    PyErr_SetObject(type, value);
-
-    if (tb) {
-        PyThreadState *tstate = PyThreadState_GET();
-        PyObject* tmp_tb = tstate->curexc_traceback;
-        if (tb != tmp_tb) {
-            Py_INCREF(tb);
-            tstate->curexc_traceback = tb;
-            Py_XDECREF(tmp_tb);
-        }
-    }
-
+    #endif
+    *type = local_type;
+    *value = local_value;
+    *tb = local_tb;
+    Py_INCREF(local_type);
+    Py_INCREF(local_value);
+    Py_INCREF(local_tb);
+    tmp_type = tstate->exc_type;
+    tmp_value = tstate->exc_value;
+    tmp_tb = tstate->exc_traceback;
+    tstate->exc_type = local_type;
+    tstate->exc_value = local_value;
+    tstate->exc_traceback = local_tb;
+    /* Make sure tstate is in a consistent state when we XDECREF
+       these objects (XDECREF may run arbitrary code). */
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
+    return 0;
 bad:
-    return;
+    *type = 0;
+    *value = 0;
+    *tb = 0;
+    Py_XDECREF(local_type);
+    Py_XDECREF(local_value);
+    Py_XDECREF(local_tb);
+    return -1;
 }
-#endif
+
 
 static double __Pyx__PyObject_AsDouble(PyObject* obj) {
     PyObject* float_value;
@@ -25756,91 +25446,167 @@ bad:
     return module;
 }
 
-static PyObject *__Pyx_FindPy2Metaclass(PyObject *bases) {
-    PyObject *metaclass;
-    /* Default metaclass */
-#if PY_MAJOR_VERSION < 3
-    if (PyTuple_Check(bases) && PyTuple_GET_SIZE(bases) > 0) {
-        PyObject *base = PyTuple_GET_ITEM(bases, 0);
-        metaclass = PyObject_GetAttrString(base, "__class__");
-        if (!metaclass) {
-            PyErr_Clear();
-            metaclass = (PyObject*) Py_TYPE(base);
-        }
-    } else {
-        metaclass = (PyObject *) &PyClass_Type;
-    }
-#else
-    if (PyTuple_Check(bases) && PyTuple_GET_SIZE(bases) > 0) {
-        PyObject *base = PyTuple_GET_ITEM(bases, 0);
-        metaclass = (PyObject*) Py_TYPE(base);
-    } else {
-        metaclass = (PyObject *) &PyType_Type;
-    }
-#endif
-    Py_INCREF(metaclass);
-    return metaclass;
-}
-
-static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name,
-                                   PyObject *modname) {
-    PyObject *result;
-    PyObject *metaclass;
-
-    if (PyDict_SetItemString(dict, "__module__", modname) < 0)
-        return NULL;
+static PyObject *__Pyx_CreateClass(
+    PyObject *bases, PyObject *dict, PyObject *name, const char *modname)
+{
+    PyObject *py_modname;
+    PyObject *result = 0;
 
-    /* Python2 __metaclass__ */
-    metaclass = PyDict_GetItemString(dict, "__metaclass__");
-    if (metaclass) {
-        Py_INCREF(metaclass);
-    } else {
-        metaclass = __Pyx_FindPy2Metaclass(bases);
-    }
-    result = PyObject_CallFunctionObjArgs(metaclass, name, bases, dict, NULL);
-    Py_DECREF(metaclass);
+    #if PY_MAJOR_VERSION < 3
+    py_modname = PyString_FromString(modname);
+    #else
+    py_modname = PyUnicode_FromString(modname);
+    #endif
+    if (!py_modname)
+        goto bad;
+    if (PyDict_SetItemString(dict, "__module__", py_modname) < 0)
+        goto bad;
+    #if PY_MAJOR_VERSION < 3
+    result = PyClass_New(bases, dict, name);
+    #else
+    result = PyObject_CallFunctionObjArgs((PyObject *)&PyType_Type, name, bases, dict, NULL);
+    #endif
+bad:
+    Py_XDECREF(py_modname);
     return result;
 }
 
+static CYTHON_INLINE void __Pyx_ErrRestore(PyObject *type, PyObject *value, PyObject *tb) {
+    PyObject *tmp_type, *tmp_value, *tmp_tb;
+    PyThreadState *tstate = PyThreadState_GET();
 
-static PyObject *__pyx_binding_PyCFunctionType_NewEx(PyMethodDef *ml, PyObject *self, PyObject *module) {
-       __pyx_binding_PyCFunctionType_object *op = PyObject_GC_New(__pyx_binding_PyCFunctionType_object, __pyx_binding_PyCFunctionType);
-    if (op == NULL)
-        return NULL;
-       op->func.m_ml = ml;
-       Py_XINCREF(self);
-       op->func.m_self = self;
-       Py_XINCREF(module);
-       op->func.m_module = module;
-       PyObject_GC_Track(op);
-       return (PyObject *)op;
+    tmp_type = tstate->curexc_type;
+    tmp_value = tstate->curexc_value;
+    tmp_tb = tstate->curexc_traceback;
+    tstate->curexc_type = type;
+    tstate->curexc_value = value;
+    tstate->curexc_traceback = tb;
+    Py_XDECREF(tmp_type);
+    Py_XDECREF(tmp_value);
+    Py_XDECREF(tmp_tb);
 }
 
-static void __pyx_binding_PyCFunctionType_dealloc(__pyx_binding_PyCFunctionType_object *m) {
-       PyObject_GC_UnTrack(m);
-       Py_XDECREF(m->func.m_self);
-       Py_XDECREF(m->func.m_module);
-    PyObject_GC_Del(m);
+static CYTHON_INLINE void __Pyx_ErrFetch(PyObject **type, PyObject **value, PyObject **tb) {
+    PyThreadState *tstate = PyThreadState_GET();
+    *type = tstate->curexc_type;
+    *value = tstate->curexc_value;
+    *tb = tstate->curexc_traceback;
+
+    tstate->curexc_type = 0;
+    tstate->curexc_value = 0;
+    tstate->curexc_traceback = 0;
 }
 
-static PyObject *__pyx_binding_PyCFunctionType_descr_get(PyObject *func, PyObject *obj, PyObject *type) {
-       if (obj == Py_None)
-               obj = NULL;
-       return PyMethod_New(func, obj, type);
+
+#if PY_MAJOR_VERSION < 3
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
+    Py_XINCREF(type);
+    Py_XINCREF(value);
+    Py_XINCREF(tb);
+    /* First, check the traceback argument, replacing None with NULL. */
+    if (tb == Py_None) {
+        Py_DECREF(tb);
+        tb = 0;
+    }
+    else if (tb != NULL && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto raise_error;
+    }
+    /* Next, replace a missing value with None */
+    if (value == NULL) {
+        value = Py_None;
+        Py_INCREF(value);
+    }
+    #if PY_VERSION_HEX < 0x02050000
+    if (!PyClass_Check(type))
+    #else
+    if (!PyType_Check(type))
+    #endif
+    {
+        /* Raising an instance.  The value should be a dummy. */
+        if (value != Py_None) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto raise_error;
+        }
+        /* Normalize to raise <class>, <instance> */
+        Py_DECREF(value);
+        value = type;
+        #if PY_VERSION_HEX < 0x02050000
+            if (PyInstance_Check(type)) {
+                type = (PyObject*) ((PyInstanceObject*)type)->in_class;
+                Py_INCREF(type);
+            }
+            else {
+                type = 0;
+                PyErr_SetString(PyExc_TypeError,
+                    "raise: exception must be an old-style class or instance");
+                goto raise_error;
+            }
+        #else
+            type = (PyObject*) Py_TYPE(type);
+            Py_INCREF(type);
+            if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
+                PyErr_SetString(PyExc_TypeError,
+                    "raise: exception class must be a subclass of BaseException");
+                goto raise_error;
+            }
+        #endif
+    }
+
+    __Pyx_ErrRestore(type, value, tb);
+    return;
+raise_error:
+    Py_XDECREF(value);
+    Py_XDECREF(type);
+    Py_XDECREF(tb);
+    return;
 }
 
-static int __pyx_binding_PyCFunctionType_init(void) {
-    __pyx_binding_PyCFunctionType_type = PyCFunction_Type;
-    __pyx_binding_PyCFunctionType_type.tp_name = __Pyx_NAMESTR("cython_binding_builtin_function_or_method");
-    __pyx_binding_PyCFunctionType_type.tp_dealloc = (destructor)__pyx_binding_PyCFunctionType_dealloc;
-    __pyx_binding_PyCFunctionType_type.tp_descr_get = __pyx_binding_PyCFunctionType_descr_get;
-    if (PyType_Ready(&__pyx_binding_PyCFunctionType_type) < 0) {
-        return -1;
+#else /* Python 3+ */
+
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
+    if (tb == Py_None) {
+        tb = 0;
+    } else if (tb && !PyTraceBack_Check(tb)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: arg 3 must be a traceback or None");
+        goto bad;
     }
-    __pyx_binding_PyCFunctionType = &__pyx_binding_PyCFunctionType_type;
-    return 0;
+    if (value == Py_None)
+        value = 0;
 
+    if (PyExceptionInstance_Check(type)) {
+        if (value) {
+            PyErr_SetString(PyExc_TypeError,
+                "instance exception may not have a separate value");
+            goto bad;
+        }
+        value = type;
+        type = (PyObject*) Py_TYPE(value);
+    } else if (!PyExceptionClass_Check(type)) {
+        PyErr_SetString(PyExc_TypeError,
+            "raise: exception class must be a subclass of BaseException");
+        goto bad;
+    }
+
+    PyErr_SetObject(type, value);
+
+    if (tb) {
+        PyThreadState *tstate = PyThreadState_GET();
+        PyObject* tmp_tb = tstate->curexc_traceback;
+        if (tb != tmp_tb) {
+            Py_INCREF(tb);
+            tstate->curexc_traceback = tb;
+            Py_XDECREF(tmp_tb);
+        }
+    }
+
+bad:
+    return;
 }
+#endif
 
 static CYTHON_INLINE PyObject *__Pyx_PyInt_to_py_uint32_t(uint32_t val) {
     const uint32_t neg_one = (uint32_t)-1, const_zero = (uint32_t)0;
@@ -26295,13 +26061,13 @@ static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class
     if (!result)
         goto bad;
     if (!PyType_Check(result)) {
-        PyErr_Format(PyExc_TypeError,
+        PyErr_Format(PyExc_TypeError, 
             "%s.%s is not a type object",
             module_name, class_name);
         goto bad;
     }
     if (!strict && ((PyTypeObject *)result)->tp_basicsize > size) {
-        PyOS_snprintf(warning, sizeof(warning),
+        PyOS_snprintf(warning, sizeof(warning), 
             "%s.%s size changed, may indicate binary incompatibility",
             module_name, class_name);
         #if PY_VERSION_HEX < 0x02050000
@@ -26311,7 +26077,7 @@ static PyTypeObject *__Pyx_ImportType(const char *module_name, const char *class
         #endif
     }
     else if (((PyTypeObject *)result)->tp_basicsize != size) {
-        PyErr_Format(PyExc_ValueError,
+        PyErr_Format(PyExc_ValueError, 
             "%s.%s has the wrong size, try recompiling",
             module_name, class_name);
         goto bad;
@@ -26346,23 +26112,22 @@ bad:
 }
 #endif
 
-static void* __Pyx_GetVtable(PyObject *dict) {
-    void* ptr;
+static int __Pyx_GetVtable(PyObject *dict, void *vtabptr) {
     PyObject *ob = PyMapping_GetItemString(dict, (char *)"__pyx_vtable__");
     if (!ob)
         goto bad;
 #if PY_VERSION_HEX >= 0x02070000 && !(PY_MAJOR_VERSION==3&&PY_MINOR_VERSION==0)
-    ptr = PyCapsule_GetPointer(ob, 0);
+    *(void **)vtabptr = PyCapsule_GetPointer(ob, 0);
 #else
-    ptr = PyCObject_AsVoidPtr(ob);
+    *(void **)vtabptr = PyCObject_AsVoidPtr(ob);
 #endif
-    if (!ptr && !PyErr_Occurred())
-        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
+    if (!*(void **)vtabptr)
+        goto bad;
     Py_DECREF(ob);
-    return ptr;
+    return 0;
 bad:
     Py_XDECREF(ob);
-    return NULL;
+    return -1;
 }
 
 static int __Pyx_SetVtable(PyObject *dict, void *vtable) {