django-reversion is an extension to the Django web framework that provides comprehensive version control facilities: - Roll back to any point in a model's history - an unlimited undo facility! - Recover deleted models - never lose data again! - Admin integration for maximum usability. - Group related changes into revisions that can be rolled back in a single transaction. - Automatically save a new version whenever your model changes using Django's flexible signalling framework. - Automate your revision management with easy-to-use middleware. django-reversion can be easily added to your existing Django project with an absolute minimum of code changes. WWW: http://pypi.python.org/pypi/django-reversion/