[New-bugs-announce] [issue45821] Many method parameters in the datetime module are positional-only in the C implementation but positional-or-keyword in the Python implementation

[Alex Waygood]

New submission from Alex Waygood <Alex.Waygood at Gmail.com>:

The following methods have parameters that are positional-only in the C implementation of the `datetime` module, but positional-or-keyword in the pure-Python implementation:

* tzinfo.tzname
* tzinfo.utcoffset
* tzinfo.dst
* tzinfo.fromutc
* date.fromordinal
* date.fromisoformat
* date.__format__
* date.__le__
* date.__lt__
* date.__ge__
* date.__gt__
* date.__add__
* date.__radd__
* date.__sub__
* date.__reduce_ex__
* time.__le__
* time.__lt__
* time.__ge__
* time.__gt__
* time.fromisoformat
* time.__format__
* timedelta.__add__
* timedelta.__radd__
* timedelta.__sub__
* timedelta.__rsub__
* timedelta.__mul__
* timedelta.__rmul__
* timedelta.__floordiv__
* timedelta.__truediv__
* timedelta.__mod__
* timedelta.__divmod__
* timedelta.__le__
* timedelta.__lt__
* timedelta.__ge__
* timedelta.__gt__
* datetime.utcfromtimestamp
* datetime.fromisoformat
* datetime.strptime
* datetime.__le__
* datetime.__lt__
* datetime.__ge__
* datetime.__gt__

These inconsistencies make it extremely difficult to provide an accurate stub for these methods in typeshed.

----------
components: Extension Modules, Library (Lib)
messages: 406423
nosy: AlexWaygood, belopolsky, p-ganssle
priority: normal
severity: normal
status: open
title: Many method parameters in the datetime module are positional-only in the C implementation but positional-or-keyword in the Python implementation
type: behavior
versions: Python 3.10, Python 3.11, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45821>
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