X-Git-Url: http://woldlab.caltech.edu/gitweb/?p=pysam.git;a=blobdiff_plain;f=pysam%2F__init__.py;fp=pysam%2F__init__.py;h=f4f1138d01d537dda24976775aa1c92ed3dd5c2d;hp=8454f8e4b0739581a463484d1799ba2b2a43a1ad;hb=68c074fc81858150ca7447a88e731eec96be6378;hpb=768881ffd9d33e3c5fa00dd9ea6f488f4f0700b3

diff --git a/pysam/__init__.py b/pysam/__init__.py
index 8454f8e..f4f1138 100644
--- a/pysam/__init__.py
+++ b/pysam/__init__.py
@@ -48,7 +48,7 @@ class SamtoolsDispatcher(object):
         '''execute a samtools command
         '''
         retval, stderr, stdout = csamtools._samtools_dispatch( self.dispatch, args )
-        if retval: raise SamtoolsError( "\n".join( stderr ) )
+        if retval: raise SamtoolsError( 'csamtools returned with error %i: %s' % (retval, "\n".join( stderr ) ))
         self.stderr = stderr
         # samtools commands do not propagate the return code correctly.
         # I have thus added this patch to throw if there is output on stderr.