[tox] envlist = py27,py34,py35,py36,pypy,pypy3,coverage [testenv] commands = zope-testrunner --test-path=src [] deps = .[test] [testenv:coverage] usedevelop = true basepython = python2.7 commands = coverage run -m zope.testrunner --test-path=src [] coverage report --fail-under=88 deps = {[testenv]deps} coverage