django-guardian is an implementation of object permissions for Django providing extra authentication backend.
Sources are available at issue-tracker. You may also file a bug there.
Django 1.2 still has only foundation for object permissions [1] and django-guardian make use of new facilities and it is based on them. There are some other pluggable applications which does NOT require latest 1.2 version of Django. For instance, there are great django-authority or django-permissions available out there.
[1] | See http://docs.djangoproject.com/en/1.2/topics/auth/#handling-object-permissions for more detail. |