[Python-Dev] Status on PEP-431 Timezones

[Alexander Belopolsky]

On Thu, Apr 9, 2015 at 12:49 PM, Isaac Schwabacher <ischwabacher at wisc.edu>
wrote:
>
> if someone passed you datetime(2013, 11, 3, 1, 30) without a time zone.
astimezone assumes that the input naive time is UTC, which is not the case
here.


No, it does not.  Please read the documentation: "self must be aware
(self.tzinfo must not be None, and self.utcoffset() must not return None)."

<
https://docs.python.org/3/library/datetime.html#datetime.datetime.astimezone
>
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