[issue30822] Python implementation of datetime module is not being tested correctly.

[STINNER Victor]

STINNER Victor added the comment:

> These tests were supposed to be exhaustive and I did not expect them to be run by default.  that's why I introduced the -utzdata flag in the first place.

Buildbots use "-u all" and so enables tzdata tests. Is it useful to
run all these tests on all branches for each Python commit?

Maybe we should disable these tests on all CI, and maybe setup a
buildbot which runs these tests?

Instead of being exhaustive, would it be possible to pick a few
significant tests?

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30822>
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