Dr. Jens Harbott e88b96b5fe Pin virtualenv in order to fix tox on py27
In addition to the bug for which [0] is a workaround, there is another
issue with virtualenv [1,2], so we need to temporarily pin its version,
too.

[0] Ia8bbcbc734bc7fe3d7e553e51d67a4ed0ae1404e
[1] https://github.com/pypa/virtualenv/issues/1670
[2] https://github.com/pypa/virtualenv/pull/1673

Change-Id: I0a4ce2d259675fa7f1d6069a318bc8e8a98b0850
2020-03-03 10:41:28 +00:00
..
2020-02-03 14:19:09 +11:00
2020-02-03 14:19:09 +11:00