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Title: change chained maps to MutableMapping; fix #6042 by ramalho · Pull Request #6044 · python/typeshed · GitHub

Open Graph Title: change chained maps to MutableMapping; fix #6042 by ramalho · Pull Request #6044 · python/typeshed

X Title: change chained maps to MutableMapping; fix #6042 by ramalho · Pull Request #6044 · python/typeshed

Description: collections.ChainMap is annotated as a MutableMapping, therefore the mappings it holds must also be MutableMapping. As it is, operations that update any of the chained mappings are flagged as error...

Open Graph Description: collections.ChainMap is annotated as a MutableMapping, therefore the mappings it holds must also be MutableMapping. As it is, operations that update any of the chained mappings are flagged as error...

X Description: collections.ChainMap is annotated as a MutableMapping, therefore the mappings it holds must also be MutableMapping. As it is, operations that update any of the chained mappings are flagged as error...

Opengraph URL: https://github.com/python/typeshed/pull/6044

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og:image:altcollections.ChainMap is annotated as a MutableMapping, therefore the mappings it holds must also be MutableMapping. As it is, operations that update any of the chained mappings are flagged as error...
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change chained maps to MutableMapping; fix #6042 https://github.com/python/typeshed/pull/6044#top
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change chained maps to MutableMapping;https://github.com/python/typeshed/pull/6044/commits/f4e7617f2cabf7633659b50773e4ea8c42988658
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collections.ChainMap has wrong type hint for self.maps, rendering it "immutable" #6042 https://github.com/python/typeshed/issues/6042
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Mar 2, 2022 https://github.com/python/typeshed/pull/6044#ref-pullrequest-1156991447
Make several fields read-only for type, staticmethod and classmethod #7423 https://github.com/python/typeshed/pull/7423
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Jul 28, 2022 https://github.com/python/typeshed/pull/6044#ref-issue-1321494441
ChainMap has wrong or unintuitive type after #6042 #8430 https://github.com/python/typeshed/issues/8430
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