Fixed #9585 -- Corrected code committed in [9398] that wasn't compatible with...

Fixed #9585 -- Corrected code committed in [9398] that wasn't compatible with Python 2.3/2.4. Thanks to Karen Tracey for the report and fix.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9465 bcc190cf-cafb-0310-a4f2-bffc1f526a37