ENH: set __module__ for pandas scalars (Timestamp/Timedelta/Period)

[YinonHorev]

Addresses part of #55178

[jorisvandenbossche]

Thanks for the PR!

Can you add those new cases to the existing test that was added here: https://github.com/pandas-dev/pandas/pull/55171/files#diff-f2ce09edfcd4e105695b327053c3d288fa9547b1b5cb6488da3f3213e5478870?

[jorisvandenbossche]

For Interval, it seems this is not working (see the build failures) because this is a cdef class instead of just a class.

I don't directly know the best workaround, but so can also leave out Interval from this PR and already do the others

[YinonHorev]

OK will do.

[jorisvandenbossche]

There is another failing test that needs to be updated:

pandas/pandas/tests/tslibs/test_timezones.py

Lines 144 to 146 in 4f145b3

	msg = "<class 'pandas._libs.tslibs.timestamps.Timestamp'>"
	with pytest.raises(TypeError, match=msg):
	timezones.maybe_get_tz(Timestamp("2021-01-01", tz="UTC"))

The expected msg needs to be updated now

[github-actions]

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[jorisvandenbossche]

Apologies for the slow follow-up, but rebased this once more and fixed the docstring failure, so all good to go now.

@YinonHorev thanks again for the PR!