tox.ini: require at least tox >= 3.0

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Cosimo Lupo 2018-07-25 19:12:17 +01:00
parent 05f95f0f58
commit 553f23f1db
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@ -1,4 +1,5 @@
[tox]
minversion = 3.0
envlist = py{27,36,37}-cov, htmlcov
[testenv]