[tox]
envlist=py27,py36
[testenv]
commands=python setup.py test
[tox]
envlist=py36,py37,py38,py39
[testenv]
commands=python setup.py test
Drop Python2. Add 37, 38 and 39
Drop Python2. Add 37, 38 and 39

Signed-off-by: Philippe Ombredanne <ca95c4a6a4931f366cbdaf5878c5016609417d37@nexb.com>