Virtualenv-based automation of test activitieshttp://tox.testrun.org/
Tox is a generic virtualenv management and test command line tool you can use for:
* checking your package installs correctly with different Python versions and interpreters
* running your tests in each of the environments, configuring your test tool of choice
* acting as a frontend to Continuous Integration servers, greatly reducing boilerplate and merging CI and shell-based testing.