I just came across a problem with tox and Python 3.2 that is described here: https://github.com/travis-ci/travis-ci/issues/5485 I am running tox by the ShiningPanda Jenkins plugin which installs tox like this:
[py32] $ /var/lib/jenkins/shiningpanda/jobs/f517a249/tools/bin/python -c "import pip; pip.main();" install --upgrade tox Collecting tox Using cached tox-2.3.1-py2.py3-none-any.whl Collecting virtualenv>=1.11.2 (from tox) Using cached virtualenv-15.0.1-py2.py3-none-any.whl Collecting py>=1.4.17 (from tox) Using cached py-1.4.31-py2.py3-none-any.whl Collecting pluggy<0.4.0,>=0.3.0 (from tox) Using cached pluggy-0.3.1-py2.py3-none-any.whl
This installs virtualenv version 15.0.1 which comes from the tox's setup.py
Looks like changing that to
virtualenv<14.0.0 would fix the problem.