Tom Barron 4db9d567d1 Safety check for python version in get_pip_command
We know empirically that some legacy gate jobs pass and appear
to be running with python3 but actually pip was invoked with
PYTHON3_VERSION unset so that they are actually ran with python2
packages.

As a followup to this discussion [1], add a safety check in the
get_pip_command function to ensure that a python version has been
set when it is invoked.

[1] https://review.openstack.org/#/c/622415/4/inc/python@283

Change-Id: I3a08406fb7d68282c6b98abb33a625821510046a
2019-05-20 06:01:35 +00:00
..
2019-01-12 08:53:26 +08:00