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Title: DO-NOT-MERGE: Import from `collections.abc` rather than `typing` in builtins by AlexWaygood · Pull Request #6724 · python/typeshed · GitHub

Open Graph Title: DO-NOT-MERGE: Import from `collections.abc` rather than `typing` in builtins by AlexWaygood · Pull Request #6724 · python/typeshed

X Title: DO-NOT-MERGE: Import from `collections.abc` rather than `typing` in builtins by AlexWaygood · Pull Request #6724 · python/typeshed

Description: Collection of library stubs for Python, with static types - DO-NOT-MERGE: Import from `collections.abc` rather than `typing` in builtins by AlexWaygood · Pull Request #6724 · python/typeshed

Open Graph Description: This is another PR to reproduce a mypy bug discovered while working on #6717

X Description: This is another PR to reproduce a mypy bug discovered while working on #6717

Opengraph URL: https://github.com/python/typeshed/pull/6724

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No crash is caused for the vast majority of collections.abc importshttps://github.com/python/typeshed/pull/6724/commits/257dc6c9e5059bfde9bf5b8f39f3f7d8b1cf0426
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Importing Sequence from collections.abc causes a mypy crashhttps://github.com/python/typeshed/pull/6724/commits/83646a64e4d5c23e5ba172182e015299ac403b8e
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Importing MutableSequence from collections.abc also causes a crashhttps://github.com/python/typeshed/pull/6724/commits/57361f1554a3d432d2f69edf12241274d31b86bf
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Importing Sequence and MutableSequence from collections.abc als…https://github.com/python/typeshed/pull/6724/commits/4506274fd187a60f927783832137b421c6d8e96c
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