[issue36899] datetime utcfromtimestamp ignores astimezone

[Piotr Kamoda]

Piotr Kamoda <kamoda.piotr at gmail.com> added the comment:

Ok, now I see that naive object assumes my timezone in some cases. That's still mind-boggling that utcfromtimestamp returns an object that shows utc hour but when astimezone is applied it reverts without converting the hour to local timezone.

See below as explanation:
>>> datetime.utcfromtimestamp(1557395250).astimezone(pytz.utc).strftime('%Y-%m-%d %H:%M:%S %z %Z')
'2019-05-09 07:47:30 +0000 UTC'
>>> datetime.utcfromtimestamp(1557395250).astimezone(get_localzone()).strftime('%Y-%m-%d %H:%M:%S %z %Z')
'2019-05-09 09:47:30 +0200 CEST'

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<https://bugs.python.org/issue36899>
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