[issue47180] Remove unnecessary registration of weakref.WeakSet as a subtype of _collections_abc.Set

[Raymond Hettinger]

Change by Raymond Hettinger :


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resolution:  -> fixed
stage:  -> resolved
status: open -> closed

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[issue47180] Remove unnecessary registration of weakref.WeakSet as a subtype of _collections_abc.Set

[Raymond Hettinger]

Change by Raymond Hettinger :


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versions:  -Python 3.10, Python 3.9

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[issue47180] Remove unnecessary registration of weakref.WeakSet as a subtype of _collections_abc.Set

[Géry]

New submission from Géry :

Registering `weakref.WeakSet` as a subtype of `_collections_abc.MutableSet` 
implies that it is also a subtype of `_collections_abc.Set` since 
`_collections_abc.MutableSet` is a subtype of `_collections_abc.Set` and the 
subtype relation is transitive.

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components: Library (Lib)
messages: 416422
nosy: maggyero
priority: normal
pull_requests: 30287
severity: normal
status: open
title: Remove unnecessary registration of weakref.WeakSet as a subtype of 
_collections_abc.Set
type: enhancement
versions: Python 3.10, Python 3.11, Python 3.9

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