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python
mypy
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Add support for PEP 661 (sentinels)
- #21647
#21647
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JelleZijlstra
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Aug 7, 2026
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Add support for PEP 661 (sentinels)
#21647
JelleZijlstra
merged 20 commits into
python:master
python/mypy:master
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edgarrmondragon:sentinels-reloaded
edgarrmondragon/--fork-mypy:sentinels-reloaded
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Add support for PEP 661 (sentinels)
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simplify
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[pre-commit.ci] auto fixes from pre-commit.com hooks
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test isinstance
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Commits on May 11, 2026
Fix sentinel cache restore
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maybe fix
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[pre-commit.ci] auto fixes from pre-commit.com hooks
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refactor: Make `write_literal`/`read_literal` sentinel-aware
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chore: Bump cache version to 11
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Merge branch 'master' into sentinels-reloaded
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ci: Use local lib-rt in "interpreted" job
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Merge branch 'master' into sentinels-reloaded
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Fix missing dependency trigger for sentinel literals
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Do not treat sentinel reassignment as an alias
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Commits on Aug 7, 2026
Merge branch 'master' into sentinels-reloaded
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Handle dataclasses.MISSING and dataclasses.KW_ONLY as sentinels
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Revert now unnecessary workflow change
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Merge branch 'master' into sentinels-reloaded
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Reject sentinels as types when defined within a class nested in a function
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