This is the limited subset of my django-sugar fork which I regularly use enough to distribute on PyPI.
See https://django-bittersweet.readthedocs.org/
Except for bittersweet_json, all code is released into the public domain.
See LICENSE
See https://django-bittersweet.readthedocs.org/en/latest/quickstart.html
You can run the tests against every supported version of Python / Django using tox.
If you're developing new features, run python setup.py test.