TDD in Python with Nosy and Sneazr

nosy runs nosetests every time a file is changed. Combined with Sneazr, you'll have a Growl notification indicating the state of your tests every time you make a change.

Installation is as simple as:

$ pip install nosy sneazr

Then, add a setup.cfg to pass options to nosy when it runs tests:

[nosy]
base_path = ./
glob_patterns = *.py
options = --with-sneazr

Rubyists will recognize this setup as autotest-growl.