Lightweight python datamapper ORM (Object-relational mapper).
Project has moved to https://pypi.python.org/pypi/ascetic (Source Code https://bitbucket.org/emacsway/ascetic )
Cache-tagging allows you easily invalidate all cache records tagged with a given tag(s). Supports Django.
Django-versioning allows you to version the data stored in django models, and stores only diff, not content copy.
SmartSQL - lightweight sql builder.