[skeleton] Don't use system site packages in tox environment
As we changed this in cubicweb, there is a consensus that this
is not the best practice so let us change it as well for
skeleton.
[tox]
envlist = py27,py34,flake8
[testenv]
deps =
pytest
commands =
{envpython} -m pytest {posargs:test}
[testenv:flake8]
skip_install = true
whitelist_externals =
flake8
deps =
flake8
commands = flake8
[flake8]
exclude = cubicweb_%(cubename)s/migration/*,test/data/*,.tox/*