Comment 13 for bug 1801657

Reviewed: https://review.openstack.org/606825
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible-os_barbican/commit/?id=7b58a52da00d080697ee666a45b19f3806c5109d
Submitter: Zuul
Branch: master

commit 7b58a52da00d080697ee666a45b19f3806c5109d
Author: huang.zhiping <huang.zhiping@99cloud.net>
Date: Sun Sep 30 08:25:46 2018 +0000

    fix tox python3 overrides

    We want to default to running all tox environments under python 3, so
    set the basepython value in each environment.

    We do not want to specify a minor version number, because we do not
    want to have to update the file every time we upgrade python.

    We do not want to set the override once in testenv, because that
    breaks the more specific versions used in default environments like
    py35 and py36.

    Change-Id: Ibcfa628141ecdd8cd604cc1837bbaa2b7efcc8cb
    Closes-Bug: #1801657