improvement and forward-compatible with future Python releases. Patch from Gary Wilson. git-svn-id: http://code.djangoproject.com/svn/django/trunk@5091 bcc190cf-cafb-0310-a4f2-bffc1f526a37
git-svn-id: http://code.djangoproject.com/svn/django/trunk@3661 bcc190cf-cafb-0310-a4f2-bffc1f526a37