We’ve just uploaded mypy 1.11 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)
Mypy now supports the new type parameter syntax introduced in Python 3.12 (PEP 695).
This feature is still experimental and must be enabled with the --enable-incomplete-feature=NewGenericSyntax flag, or with enable_incomplete_feature = NewGenericSyntax in the mypy configuration file.
We plan to enable this by default in the next mypy feature release.
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'
Type alias
type A[T] = C[list[T]]
This feature was contributed by Jukka Lehtosalo.
Support for functools.partial
Mypy now type checks uses of functools.partial. Previously mypy would accept arbitrary arguments.
The 8.3.0 release failed to include the change notes and docs for the release. This patch release remedies this. There are no other changes.
8.3.0
pytest 8.3.0 (2024-07-20)
New features
#12231: Added [--xfail-tb]{.title-ref} flag, which turns on traceback output for XFAIL results.
If the [--xfail-tb]{.title-ref} flag is not given, tracebacks for XFAIL results are NOT shown.
The style of traceback for XFAIL is set with [--tb]{.title-ref}, and can be [auto|long|short|line|native|no]{.title-ref}.
Note: Even if you have [--xfail-tb]{.title-ref} set, you won't see them if [--tb=no]{.title-ref}.
Some history:
With pytest 8.0, [-rx]{.title-ref} or [-ra]{.title-ref} would not only turn on summary reports for xfail, but also report the tracebacks for xfail results. This caused issues with some projects that utilize xfail, but don't want to see all of the xfail tracebacks.
This change detaches xfail tracebacks from [-rx]{.title-ref}, and now we turn on xfail tracebacks with [--xfail-tb]{.title-ref}. With this, the default [-rx]{.title-ref}/ [-ra]{.title-ref} behavior is identical to pre-8.0 with respect to xfail tracebacks. While this is a behavior change, it brings default behavior back to pre-8.0.0 behavior, which ultimately was considered the better course of action.
#12281: Added support for keyword matching in marker expressions.
Now tests can be selected by marker keyword arguments.
Supported values are int{.interpreted-text role="class"}, (unescaped) str{.interpreted-text role="class"}, bool{.interpreted-text role="class"} & None{.interpreted-text role="data"}.
See marker examples <marker_keyword_expression_example>{.interpreted-text role="ref"} for more information.
-- by lovetheguitar{.interpreted-text role="user"}
#12567: Added --no-fold-skipped command line option.
If this option is set, then skipped tests in short summary are no longer grouped
by reason but all tests are printed individually with their nodeid in the same
way as other statuses.
-- by pbrezina{.interpreted-text role="user"}
Improvements in existing functionality
#12469: The console output now uses the "third-party plugins" terminology,
replacing the previously established but confusing and outdated
reference to setuptools <setuptools:index>{.interpreted-text role="std:doc"}
-- by webknjaz{.interpreted-text role="user"}.
#12544, #12545: Python virtual environment detection was improved by
checking for a pyvenv.cfg{.interpreted-text role="file"} file, ensuring reliable detection on
various platforms -- by zachsnickers{.interpreted-text role="user"}.
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Bumps the dependencies group with 3 updates: mypy, pylint and pytest.
Updates
mypy
from 1.10.1 to 1.11.0Changelog
Sourced from mypy's changelog.
... (truncated)
Commits
dbd5f5c
Remove +dev from version for 1.11 releasef0a8c69
Update CHANGELOG for mypy 1.11 (#17540)371f780
CHANGELOG.md update for 1.11 (#17539)2563da0
Fix daemon crash on invalid type in TypedDict (#17495)d8c67c3
[release 1.11] Ignore some errors in typeshed (#17510)294daff
Mention --enable-incomplete-feature=NewGenericSyntax (#17462)5c33abf
Further improvements to functools.partial handling (#17425)c37d972
Fix type comments crash inside generic definitions (#16849)d39f023
Add changelog entry for 1.10.1 (#17436)6c1d867
Fix ParamSpec inference against TypeVarTuple (#17431)Updates
pylint
from 3.2.5 to 3.2.6Commits
da19566
Bump pylint to 3.2.6, update changelog (#9825)810c59c
Update setuptools to >=71.0.4 (#9812) (#9824)5f19cd5
Fix a crash when a subclass extends__slots__
(#9817) (#9822)c0b1d22
Bump astroid to 3.2.4 (#9816) (#9821)1d877de
Fix consider-using-min-max-builtin (#9802) (#9803)8410f57
Fix a false positive formissing-param-doc
(#9740) (#9793)bd4c8f1
Handle assert_never() when imported from typing_extensions (#9782) (#9790)8eb2c4d
Fix FP forunexpected-keyword-arg
with ambiguous constructors (#9785) (#9788)9882537
Bump astroid to 3.2.3 (#9787)aea868c
Fixinvalid-name
regression for class attributes in subclasses (#9772) (#9775)Updates
pytest
from 8.2.2 to 8.3.1Release notes
Sourced from pytest's releases.
... (truncated)
Commits
de98446
Prepare release version 8.3.1bd0a042
Merge pull request #12636 from pytest-dev/update-release-notes664325b
doc/changelog: update 8.3.0 notes19d225d
Merge pull request #12635 from pytest-dev/release-8.3.0bc33028
Prepare release version 8.3.0a7d5a8e
Merge pull request #12557 from x612skm/maintainence/11771-pypy-3.9-bumpced7072
Add a change note for PR #11771d42b76d
Adjust test_errors_in_xfail_skip_expressions for PyPy9eee45a
Bump PyPy runtime to v3.9 @ GHAd489247
Fix caching of parameterized fixtures (#12600)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
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