give a hint on what went wrong on a failed Cython import from distutils

diff --git a/Cython/Distutils/build_ext.py b/Cython/Distutils/build_ext.py
index 8064956f67553803a2780212a98d6d93bf683634..742ecd5020c6eb7ebfd802ff98302a756b3d8b76 100644 (file)
--- a/Cython/Distutils/build_ext.py
+++ b/Cython/Distutils/build_ext.py
@@ -22,6 +22,7 @@ try:
                compile as cython_compile
     from Cython.Compiler.Errors import PyrexError
 except ImportError, e:
+    print "failed to import Cython: %s" % e
     PyrexError = None
 
 from distutils.command import build_ext as _build_ext