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Bump mypy from 2.1.0 to 2.3.1 - #237

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Sep 6, 2026
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Bump mypy from 2.1.0 to 2.3.1#237
Aegdesil merged 1 commit into
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dependabot/pip/mypy-2.2.0

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@dependabot dependabot Bot commented on behalf of github Jul 13, 2026

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Bumps mypy from 2.1.0 to 2.3.1.

Changelog

Sourced from mypy's changelog.

Mypy 2.3.1

  • Fix mypyc crash on double yielding Iterators (Daniël van Noord, PR 21826)
  • Fix mypyc default_factory for inherited dataclass (Daniël van Noord, PR 21785)
  • Clear mypyc coroutine env on coroutine completion (Piotr Sawicki, PR 21734)
  • Fix crash when unpacking return value from overload (Shantanu, PR 21830)

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

  • Agriya Khetarpal
  • Ethan Sarp
  • Ivan Levkivskyi
  • Jingchen Ye
  • Jukka Lehtosalo
  • Piotr Sawicki
  • Shantanu
  • Tom Bannink
  • Viktor Szépe
  • ygale

I'd also like to thank my employer, Dropbox, for supporting mypy development.

Mypy 2.2

We've just uploaded mypy 2.2.0 to the Python Package Index (PyPI). Mypy is a static type checker for Python. This release includes new features, performance improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

Support for Closed TypedDicts (PEP 728)

Mypy now supports closed TypedDicts as specified in PEP 728. A closed TypedDict cannot have extra keys beyond those explicitly defined. This allows the type checker to determine that certain operations are safe when they otherwise wouldn't be due to the potential presence of unknown keys.

You can use the closed keyword argument with TypedDict:

HasName = TypedDict("HasName", {"name": str})
HasOnlyName = TypedDict("HasOnlyName", {"name": str}, closed=True)
Movie = TypedDict("Movie", {"name": str, "year": int})
movie: Movie = {"name": "Nimona", "year": 2023}
has_name: HasName = movie  # OK: HasName is open (default)
has_only_name: HasOnlyName = movie  # Error: HasOnlyName is closed and Movie has extra "year" key
</tr></table>

... (truncated)

Commits
  • d642c44 Bump version to 2.3.1
  • a392429 [mypyc] Fix crash on double yielding Iterators (#21826)
  • 4843e77 [mypyc] Fix default_factory for inherited dataclass (#21785)
  • 14f5df9 [mypyc] Clear coroutine env on coroutine completion (#21734)
  • 6dfa06d Fix crash when unpacking return value from overload (#21830)
  • a385746 Bump version to 2.3.1+dev
  • 8aabf84 Drop +dev from version
  • 4d8ad2a Update changelog for 2.3 release (#21728)
  • 2c21546 [mypyc] Update documentation of race conditions under free threading (#21726)
  • a9f62a3 [mypyc] Make attribute access memory safe on free-threaded builds (#21705)
  • Additional commits viewable in compare view

Note
Automatic rebases have been disabled on this pull request as it has been open for over 30 days.

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file python Pull requests that update Python code labels Jul 13, 2026
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codecov Bot commented Jul 13, 2026

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (105dc3b) to head (5b5eb41).

Additional details and impacted files
@@            Coverage Diff            @@
##            master      #237   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           76        76           
  Lines         1311      1311           
  Branches       120       120           
=========================================
  Hits          1311      1311           

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@Aegdesil

Aegdesil commented Sep 6, 2026

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@dependabot rebase

@Aegdesil
Aegdesil enabled auto-merge September 6, 2026 17:43
Bumps [mypy](https://github.com/python/mypy) from 2.1.0 to 2.3.1.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v2.1.0...v2.3.1)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.2.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot changed the title Bump mypy from 2.1.0 to 2.2.0 Bump mypy from 2.1.0 to 2.3.1 Sep 6, 2026
@dependabot
dependabot Bot force-pushed the dependabot/pip/mypy-2.2.0 branch from d980ac8 to 5b5eb41 Compare September 6, 2026 17:43
@sonarqubecloud

sonarqubecloud Bot commented Sep 6, 2026

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@Aegdesil
Aegdesil merged commit d32d634 into master Sep 6, 2026
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@Aegdesil
Aegdesil deleted the dependabot/pip/mypy-2.2.0 branch September 6, 2026 17:44
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