We’ve just uploaded mypy 1.12 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 Python 3.12 Syntax for Generics (PEP 695)
Support for the new type parameter syntax introduced in Python 3.12 is now enabled by default,
documented, and no longer experimental. It was available through a feature flag in
mypy 1.11 as an experimental feature.
This example demonstrates the new syntax:
# Generic function
def f[T](https://github.com/python/mypy/blob/master/x: T) -> T: ...
reveal_type(f(1)) # Revealed type is 'int'
Generic class
class C[T]:
def init(self, x: T) -> None:
self.x = x
c = C('a')
reveal_type(c.x) # Revealed type is 'str'
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Updates the requirements on mypy to permit the latest version.
Changelog
Sourced from mypy's changelog.
... (truncated)
Commits
f2a39b1
Update version to 1.12.0b4ec37a
Add one more 1.12 changelog item (#17936)cc1c679
Better handling of generic functions in partial plugin (#17925)d65a013
Add latest 1.12 changes to changelog (#17921)2e38965
Fix union callees with functools.partial (#17903)c5d3673
Document ReadOnly (PEP 705) (#17905)964a7a5
Make ReadOnly TypedDict items covariant (#17904)24bfb34
Include CHANGELOG.md in sdists (#17882)21d46ed
documentation for TypeIs (#17821)c692943
Improvements to functools.partial of types (#17898)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 merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot show