[dependabot]

Bumps mypy from 1.11.2 to 2.1.0.

Changelog

Sourced from mypy's changelog.

Mypy Release Notes

Next Release

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

Closed TypedDicts enable more precise type checking because the type checker knows exactly which keys are present. This is particularly useful when working with TypedDict unions or when you want to ensure that a TypedDict conforms to an exact shape.

The closed keyword also enables safe type narrowing with in checks:

Book = TypedDict('Book', {'book': str}, closed=True)
DVD = TypedDict('DVD', {'dvd': str}, closed=True)
type Inventory = Book | DVD
def print_type(inventory: Inventory) -> None:
if "book" in inventory:
# Type is narrowed to Book here - safe because DVD is closed
print(inventory["book"])
else:
# Type is narrowed to DVD here
print(inventory["dvd"])
</tr></table>

... (truncated)

Commits

• c1c336d Remove +dev from version
• 74df14b Add changelog for mypy 2.1 (#21464)
• 022d9bc Revert "TypeForm: Enable by default (#21262)"
• 8826288 [mypyc] Document librt.random (#21463)
• 3f4067b Bump librt version to 0.11.0 (#21458)
• 2b1eb58 [mypyc] Enable incremental self-compilation (#21369)
• 8152f4a Respect file config comments for stale modules (#21444)
• 116d60b Fix nondeterminism from nonassociativity of overload joins (#21455)
• 6c4af8e Fix function call message change for small number of args (#21432)
• 4b8fdca [mypyc] Add librt.random module (#21433)
• 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.

[ToshY]

@dependabot recreate

[ToshY]

@dependabot recreate