Morning all, be the goats with you. I've finally released detox-0.9 to PYPI which brings parallelizing tox/test runs to your console, driving the test runner of your choice. detox has the same options and invocation as the good old one-step-after-the-other tox, the virtualenv-based generic test runner (see http://tox.testrun.org). install detox (and get tox installed for free!) with: pip install detox and run it on a project which already has a tox.ini with some environments: detox -e py26,py27,pypy to have all happen in parallel (packaging, virtualenv-creation, installation of deps, running of tests). Be the first to report issues to: http://bitbucket.org/hpk42/detox/issues best, holger P.S.: due to the recent refactoring of tox and due to the superiority of greenlet-based programming models, detox is only 175 lines of somewhat easy to read code :)