--- c:/python27/Lib/ctypes/__init__.py_	Fri Feb 24 21:58:42 2012
+++ c:/python27/Lib/ctypes/__init__.py	Sat Oct 04 06:10:52 2014
@@ -376,7 +376,6 @@
         if name.startswith('__') and name.endswith('__'):
             raise AttributeError(name)
         func = self.__getitem__(name)
-        setattr(self, name, func)
         return func
 
     def __getitem__(self, name_or_ordinal):