[tox]
envlist = py27, py33, py34, py35

[testenv]
deps = mock
commands = python setup.py test

[tox]
envlist = py27, py35, py36, py37

[testenv]
deps = mock
commands = python setup.py test

Test only last 3 versions and 2.7
Test only last 3 versions and 2.7
