I hope you find some of my tools useful:

Django Schema Graph: Diagram your Django apps and models; automatically, interactively, colourfully.

Classy Class Based Views: To read and understand Django's class based views.

Python Wheels: To quantify adoption of Python's Wheel format.
Not to be confused with the official documentation.

FramewIRC: An asynchronous IRC framework for Python 3.

Colour Runner: To output unittest tests in colour.