dcramer's django-sentry at master - GitHub - unfortunately only Django 1.2 (my own internal framework that is based on Django is unfortunately not compatible with 1.2 at the moment), but very interesting for collecting error messages from Django in the database for later evaluation. Of course, you can also have the errors sent to you by mail, which is already possible with built-in tools, but especially when several people are maintaining a system, storing them in the database can be much more convenient.