[tox]
envlist = py27, py34, py35, py36, flake8
[testenv]
basepython =
    py27: python2.7
    py34: python3.4
    py35: python3.5
    py36: python3.6
deps = coverage
commands=coverage run test_dj_email_url.py
[testenv:flake8]
basepython = python3.5
deps = flake8
commands = flake8 .

[tox]
envlist = py27, py34, py35, py36, flake8
[testenv]
basepython =
    py27: python2.7
    py34: python3.4
    py35: python3.5
    py36: python3.6
deps = coverage
commands=coverage run test_dj_email_url.py
[testenv:flake8]
basepython = python3.6
deps = flake8
commands = flake8 .

Use python3.6 to run flake8
ci: Use python3.6 to run flake8
