Add pep-291 compatibility markers.

Lib/ctypes/__init__.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 """create and manipulate C data types in Python"""
 
 import os as _os, sys as _sys

Lib/ctypes/_endian.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 import sys
 from ctypes import *
 

Lib/ctypes/macholib/__init__.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 """
 Enough Mach-O to make your head spin.
 

Lib/ctypes/macholib/dyld.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 """
 dyld emulation
 """

Lib/ctypes/macholib/dylib.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 """
 Generic dylib path manipulation
 """

Lib/ctypes/macholib/framework.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 """
 Generic framework path manipulation
 """

Lib/ctypes/util.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 import sys, os
 
 # find_library(name) returns the pathname of a library, or None.

Lib/ctypes/wintypes.py

+######################################################################
+#  This file should be kept compatible with Python 2.3, see PEP 291. #
+######################################################################
 # XXX This module needs cleanup.
 
 from ctypes import *

Modules/_ctypes/_ctypes.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
+
 /*
   ToDo:
 

Modules/_ctypes/_ctypes_test.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
+
 #include <Python.h>
 
 /*

Modules/_ctypes/callbacks.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
 #include "Python.h"
 #include "compile.h" /* required only for 2.3, as it seems */
 #include "frameobject.h"

Modules/_ctypes/callproc.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
+
 /*
  * History: First version dated from 3/97, derived from my SCMLIB version
  * for win16.

Modules/_ctypes/cfield.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
 #include "Python.h"
 
 #include <ffi.h>

Modules/_ctypes/ctypes.h

-/******************************************************************/
+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
 
 #if (PY_VERSION_HEX < 0x02050000)
 typedef int Py_ssize_t;

Modules/_ctypes/ctypes_dlfcn.h

-/******************************************************************/
+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
 
 #ifndef _CTYPES_DLFCN_H_
 #define _CTYPES_DLFCN_H_

Modules/_ctypes/malloc_closure.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
 #include <Python.h>
 #include <ffi.h>
 #ifdef MS_WIN32

Modules/_ctypes/stgdict.c

+/*****************************************************************
+  This file should be kept compatible with Python 2.3, see PEP 291.
+ *****************************************************************/
+
 #include "Python.h"
 #include <ffi.h>
 #ifdef MS_WIN32