chore(deps): Bump mypy from 2.3.0 to 2.3.1 in /packages/@jsii/python-runtime

[dependabot]

Bumps mypy from 2.3.0 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
• See full diff in compare view

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR:

• @dependabot rebase will rebase this PR
• @dependabot recreate will recreate this PR, overwriting any edits that have been made to it
• @dependabot show <dependency name> ignore conditions will show all of the ignore conditions of the specified dependency
• @dependabot ignore this major version will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this minor version will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself)
• @dependabot ignore this dependency will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)

[mergify]

Thank you for contributing! ❤️ I will now look into making sure the PR is up-to-date, then proceed to try and merge it!

[mergify]

Queued — the merge queue status continues in this comment ↓.

[mergify]

Merging (with squash)...

[mergify]

Merge Queue Status

• ✅ Entered queue — 2026-08-24 11:33 UTC · Rule: default-squash · triggered by rule Synchronize that PR to upstream and merge it (squash)
• ✅ Checks skipped · PR is already up-to-date
• ✅ Merged — 2026-08-24 11:33 UTC · at f95c1f4832b281fb296d23afada6ed3149b095f1 · squash

This pull request spent 47 seconds in the queue, including 5 seconds running CI.

Required conditions to merge

• github-review-approved [🛡 GitHub branch protection]
  • chore(deps): Bump mypy from 2.3.0 to 2.3.1 in /packages/@jsii/python-runtime #5230
• label!=pr/no-squash
  • chore(deps): Bump mypy from 2.3.0 to 2.3.1 in /packages/@jsii/python-runtime #5230
• status-success=Integration test (jsii-pacmak)
• status-success=Unit Tests
• any of [🛡 GitHub branch protection]:
  • check-success = Integration test (jsii-pacmak)
  • check-neutral = Integration test (jsii-pacmak)
  • check-skipped = Integration test (jsii-pacmak)
• any of [🛡 GitHub branch protection]:
  • check-success = Build
  • check-neutral = Build
  • check-skipped = Build
• any of [🛡 GitHub branch protection]:
  • check-success = Unit Tests
  • check-neutral = Unit Tests
  • check-skipped = Unit Tests