This reverts r63675 based on the discussion in this thread:
http://mail.python.org/pipermail/python-dev/2008-June/079988.html
Python 2.6 should stick with PyString_* in its codebase. The PyBytes_* names
in the spirit of 3.0 are available via a #define only. See the email thread.
diff --git a/Include/pyerrors.h b/Include/pyerrors.h
index cdc9b76..a4233c9 100644
--- a/Include/pyerrors.h
+++ b/Include/pyerrors.h
@@ -104,7 +104,7 @@
#define PyExceptionClass_Name(x) \
(PyClass_Check((x)) \
- ? PyBytes_AS_STRING(((PyClassObject*)(x))->cl_name) \
+ ? PyString_AS_STRING(((PyClassObject*)(x))->cl_name) \
: (char *)(((PyTypeObject*)(x))->tp_name))
#define PyExceptionInstance_Class(x) \