Hi,
I was writing some tests so I added a contextlib.nested to a checked
TestCase [1]. Unfortunately, contextlib.nested is no longer available in
Python3 and there is no clear solution on how to provide a compatible
import for both python2 and python3:
- either providing a python3 compatible behaviour by using
contextlib.ExitStack but that class is not available in Python 2
- or provide contextlib2 for python2 (and thus adding it to the
requirements)
That sounds really disruptive and blocking as we are close to the
FeatureFreeze. Many other users of contextlib.nested are not impacted by
the job because it excludes all of them but since the test I'm changing
is part of the existing validated tests, that leaves Jenkins -1'ing my
change.
Of course, a 3rd solution would consist of excluding my updated test
from the python3 check but I can hear others yelling at that :-)
Ideas appreciated.
-Sylvain
[1]
https://review.openstack.org/#/c/199205/18/nova/tests/unit/scheduler/test_rpcapi.py,cm
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