Add __slots__ to typing._NotIterable
#92570
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AlexWaygood
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Fidget-Spinner and
JelleZijlstra
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JelleZijlstra
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May 9, 2022
gvanrossum
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May 9, 2022
LGTM. (Though didn't we once try to assess the effect of those slots and failed to find any?)
Those were different slots I think :) |
Fidget-Spinner
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May 10, 2022
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Thanks @AlexWaygood for the PR, and @serhiy-storchaka for merging it |
|
GH-92617 is a backport of this pull request to the 3.11 branch. |
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(cherry picked from commit eef47d5) Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
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4739997 added
typing._NotIterableas a mixin totyping._SpecialForm, which defines__slots__as an optimisation technique. However,typing._NotIterabledoes not define__slots__, meaning the the__slots__declaration ontyping._SpecialFormis now meaningless, since all base classes must define__slots__in order for a__slots__declaration on a subclass to have any effect.This PR adds
__slots__ = ()totyping._NotIterable.