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gh-116035: Document that both tzinfo and fold are ignored in comparisons if tzinfo is the same (GH-116187) 

This mostly restores information removed in c12240ed28 (GH-114749).
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Serhiy Storchaka 2024-03-01 19:16:29 +02:00 committed by GitHub
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1 changed files with 8 additions and 2 deletions
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Doc/library/datetime.rst
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@ -1209,6 +1209,9 @@ Supported operations:
Naive and aware :class:`!datetime` objects are never equal.
If both comparands are aware, and have the same :attr:`!tzinfo` attribute,
the :attr:`!tzinfo` and :attr:`~.datetime.fold` attributes are ignored and
the base datetimes are compared.
If both comparands are aware and have different :attr:`~.datetime.tzinfo`
attributes, the comparison acts as comparands were first converted to UTC
datetimes except that the implementation never overflows.
@ -1222,6 +1225,9 @@ Supported operations:
Order comparison between naive and aware :class:`.datetime` objects
raises :exc:`TypeError`.
If both comparands are aware, and have the same :attr:`!tzinfo` attribute,
the :attr:`!tzinfo` and :attr:`~.datetime.fold` attributes are ignored and
the base datetimes are compared.
If both comparands are aware and have different :attr:`~.datetime.tzinfo`
attributes, the comparison acts as comparands were first converted to UTC
datetimes except that the implementation never overflows.
@ -1778,8 +1784,8 @@ Naive and aware :class:`!time` objects are never equal.
Order comparison between naive and aware :class:`!time` objects raises
:exc:`TypeError`.
If both comparands are aware, and have
the same :attr:`~.time.tzinfo` attribute, the common :attr:`!tzinfo` attribute is
If both comparands are aware, and have the same :attr:`~.time.tzinfo`
attribute, the :attr:`!tzinfo` and :attr:`!fold` attributes are
ignored and the base times are compared. If both comparands are aware and
have different :attr:`!tzinfo` attributes, the comparands are first adjusted by
subtracting their UTC offsets (obtained from ``self.utcoffset()``).