[openstack-dev] [stable][keystone] python3 goal progress and tox_install.sh removal

Lance Bragstad lbragstad at gmail.com
Thu Sep 6 20:01:01 UTC 2018

I'm noticing some odd cases with respect to the python 3 community goal
[0]. So far my findings are specific to keystone repositories, but I can
imagine this affecting other projects.

Doug generated the python 3 reviews for keystone repositories, including
the ones for stable branches. We noticed some issues with the ones proposed
to stable (keystoneauth, python-keystoneclient) and master
(keystonemiddleware). For example, python-keystoneclient's stable/pike [1]
and stable/ocata [2] branches are both failing with something like [3]:

ERROR: You must give at least one requirement to install (see "pip help

Both of those branches still use tox_install.sh [4][5]. Master,
stable/rocky, and stable/queens do not, which passed fine. It was suggested
that we backport patches to the failing branches that remove tox_install.sh
(similar to [6]). I've attempted to do this for python-keystoneclient,
keystonemiddleware, and keystoneauth.

The keystonemiddleware patches specifically are hitting a weird case, where
they either fail tests due to issues installing keystonemiddleware itself,
or pass tests and fail the requirements check. I'm guessing (because I
don't really fully understand the whole issue yet) this is because
keystonemiddleware has an optional dependency for tests and somehow the
installation process worked with tox_install.sh and doesn't work with the
new way we do things with pip and zuul.

I've attempted to remove tox_install.sh using several approaches with
keystonemiddleware master [7]. None of which passed both unit tests and the
requirements check.

I'm wondering if anyone has a definitive summary or context on
tox_install.sh and removing it cleanly for cases like keystonemiddleware.
Additionally, is anyone else noticing issues like this with their stable

[0] https://governance.openstack.org/tc/goals/stein/python3-first.html
[1] https://review.openstack.org/#/c/597685/
[2] https://review.openstack.org/#/c/597679/
[6] https://review.openstack.org/#/c/524828/3
[7] https://review.openstack.org/#/c/599003/
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