diff -up Python-2.7.3/Lib/ctypes/__init__.py.rhbz814391 Python-2.7.3/Lib/ctypes/__init__.py

--- Python-2.7.3/Lib/ctypes/__init__.py.rhbz814391	2012-04-20 14:51:19.390990244 -0400

+++ Python-2.7.3/Lib/ctypes/__init__.py	2012-04-20 14:51:45.141668316 -0400

@@ -272,11 +272,6 @@ def _reset_cache():

     # _SimpleCData.c_char_p_from_param

     POINTER(c_char).from_param = c_char_p.from_param

     _pointer_type_cache[None] = c_void_p

-    # XXX for whatever reasons, creating the first instance of a callback

-    # function is needed for the unittests on Win64 to succeed.  This MAY

-    # be a compiler bug, since the problem occurs only when _ctypes is

-    # compiled with the MS SDK compiler.  Or an uninitialized variable?

-    CFUNCTYPE(c_int)(lambda: None)

 try:

     from _ctypes import set_conversion_mode