Comment 16 for bug 1860033

Reviewed: https://review.opendev.org/703476
Committed: https://git.openstack.org/cgit/openstack/devstack/commit/?id=0b596470c8f7196a5e8e42faaa02db0ecefcf80d
Submitter: Zuul
Branch: stable/rocky

commit 0b596470c8f7196a5e8e42faaa02db0ecefcf80d
Author: Ghanshyam <email address hidden>
Date: Mon Jan 20 12:11:44 2020 -0600

    Install python3.6 on ubuntu xenial for Tempest venv

    Stable/Rocky and Stable/Queens use ubuntu xenial for
    gate which does not have python3.6 interpreter.

    As OpenStack is dropping the python2 support, many dependencies
    of Tempest and its plugins need py3.6 interpreter.
    For Example: neutron-lib latest release Bug#1860033.

    This installs python3.6 and makes it available in Tempest venv
    so that Tempest master can keep testing the stable branch.
    py3.6 provided by ppa.

    Stein onwards distro ver (bionic) has py3.6 so no issue there.

    Closes-Bug: 1860033
    Co-authored-by: Radosław Piliszek <email address hidden>
    Change-Id: I143b5d9b5cbe9a3c3f0d749badf2b6332a753fb5