Matt Wilber added the comment:
Inada-san, I think it's fair to ask for a broader vision about how ABCs are
used. In that respect I'm wondering about some inconsistencies in the existing
functools module about whether wrappers should maintain the wrapped function's
__isabstractmethod__
Matt Wilber added the comment:
To add some more context, the existing Python documentation is a little
misleading in this situation:
https://docs.python.org/3/library/abc.html#abc.abstractmethod
It shows that labeling a method with
@property
@abstractmethod
ought to be done in the order
Matt Wilber added the comment:
I agree, a comment can serve the same purpose. But for the same reasons it's
useful to express typing hints in Python with real syntax, and the reasons it's
useful to have the abc module in the first place, I think it is useful to be
able to annotate
Matt Wilber added the comment:
This allows a developer to add a @cached_property to a method with the
@abstractmethod decorator, without breaking the check for abstract methods on
ABC instantiation. That is, if you tried to instantiate an ABC with a method
that had a method decorated
Change by Matt Wilber :
--
keywords: +patch
pull_requests: +9266
stage: -> patch review
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Python tracker
<https://bugs.python.org/issue34995>
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___
Py
Change by Matt Wilber :
--
components: Library (Lib)
nosy: mwilbz
priority: normal
severity: normal
status: open
title: functools.cached_property does not maintain the wrapped method's
__isabstractmethod__
versions: Python 3.8
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Python tracker
