[openstack-dev] [trove] Start to port Trove to Python 3 in Mitaka cycle?
Victor Stinner
vstinner at redhat.com
Thu Feb 18 12:20:02 UTC 2016
Hi,
When I began to work on porting Trove to Python 3, I was blocked by
MySQL-Python which is not compatible with Python 3. I tried a big change
replacing MySQL-Python with PyMySQL, since other OpenStack services also
moved to PyMySQL. But tests fail and I'm unable to fix them :-/
https://review.openstack.org/#/c/225915/
Recently, I noticed that the dependency is now skipped on Python 3
(thanks to env markers in requirements.txt), and so "tox -e py34" is
able to create the test environment.
So I abandoned my PyMySQL change (I will reopen it later) and started
new simpler patches following the plan of my Python 3 blueprint for Trove:
https://blueprints.launchpad.net/trove/+spec/trove-python3
In short:
(1) fix the Python 3 gate
(2) make the Python 3 gate voting
(3) port more and more unit tests
My patches:
trove: "Add a minimal py34 test environment"
https://review.openstack.org/#/c/279098/
=> fix "tox -e py34", start with a whitelist of the 3 most basic unit tests
trove: "Port test_template unit test to Python 3"
https://review.openstack.org/#/c/279119/
=> port another unit test
openstack-infra/project-config: "Add non-voting gate-trove-python34 check"
https://review.openstack.org/#/c/279108/
IMHO these changes are simple and the risk of regression is low, but
amrith wrote me "thanks for your change set but per last trove meeting,
I think this should wait till mitaka is done, and we can pick it up
early in newton."
I discussed with some Trove developers who are interested to start the
Python 3 port right now. What do you think?
Maybe we can discuss that in the next Trove meeting?
https://wiki.openstack.org/wiki/Meetings/TroveMeeting
(Wednesdays at 18:00 UTC in #openstack-meeting-alt)
Oops, I just missed the meeting yesterday. I was too slow to write this
email :-)
Victor
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