Fixed #12147 -- Replaced use of try-except-finally to allow for Python 2.4...

Fixed #12147 -- Replaced use of try-except-finally to allow for Python 2.4 support. Thanks to knutin for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@11721 bcc190cf-cafb-0310-a4f2-bffc1f526a37