Johnny Cache. Clever twist on ORM-level caching for Django. Johnny Cache (great name) monkey-patches Django’s QuerySet classes and caches the result of every single SELECT query in memcached with an infinite expiry time. The cache key includes a “generation” ID for each dependent database table, and the generation is changed every single time a table is updated. For apps ...

Django | Multiple Databases. Russell just checked in the final patch developed from Alex Gaynor’s Summer of Code project to add multiple database support to Django. I’d link to the 21,000 line changeset but it crashed our Trac, so here’s the documentation instead.

MySQL Connector/Python. A pure Python implementation of the MySQL client/server protocol, meaning you can talk to a MySQL server from Python without needing to first install the MySQL client libraries (which often requires compiling from source).

ericflo’s django-tokyo-sessions. A Django sessions backend using Tokyo Cabinet, via Tokyo Tyrant and the PyTyrant library. A fast key/value store is a much better solution for sessions than a relational database.

Southerly Breezes. Andrew Godwin is slowly assimilating the best ideas from other Django migration systems in to South—the latest additions include ORM Freezing from Migratory and automatic change detection. Exciting stuff.