A flake8 plugin that ensures the rich asserts provided by unittest are used in your project.
Install via pip:
$ pip install flake8-asserts
Once installed, this will appear in flake8 --version. For example:
$ flake8 --version
3.0.0 (pep8: 1.5.7, flake8-asserts: 0.1.0, mccabe: 0.3.1, pyflakes: 0.8.1)
Initial release