[openstack-dev] [python3] Enabling py37 unit tests

Corey Bryant corey.bryant at canonical.com
Wed Oct 10 12:45:39 UTC 2018

Hi All,

I'd like to enable py37 unit tests in the gate.

== Background ==

I work on OpenStack packaging for Ubuntu. During the Rocky release (Ubuntu
Cosmic) I tried to fix py37 bugs upstream as I came across them. There
ended up being a lot of py37 issues and after a while, due to time
constraints, I resorted to just opening bugs and disabling py37 unit tests
that were failing in our package builds. Luckily enough, even though Cosmic
ships with python3.6 and python3.7, python3.6 ended up being chosen as the
default for Cosmic.

== Defaulting to python3.7 ==

The next release of Ubuntu opens in just a few weeks. It will default to
python3.7 and will not include python3.6. My hope is that if I can help
enable py37 unit tests upstream now, we can get a wider view at fixing
issues soon.

== Enabling py37 unit tests ==

Ubuntu Bionic (18.04 LTS) has the 3.7.0 interpreter and I have reviews up
to define the py37 zuul job and templates here:

I'd like to start submitting reviews to projects to enable
openstack-python37-jobs (or variant) for projects that already have
openstack-python36-jobs in their .zuul.yaml, zuul.yaml,

== Coinciding work ==

There is python3-first work going on now and I completely understand that
this is going to cause more work for some projects. It seems that now is as
good of a time as ever to catch up and test with a recent python3 version.
I'm sure python3.8 and beyond will be here before we know it.

Any thoughts or concerns?

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