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Update dependency mypy to v2 #13

Manually merged

BlazingNeutron merged 1 commit from renovate/mypy-2.x into main

2026-10-29 14:08:06 -04:00

renovate-bot commented

2026-10-29 14:06:17 -04:00

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This PR contains the following updates:

Package	Update	Change
mypy (changelog)	major	`==0.991` → `==2.4.1`

Release Notes

python/mypy (mypy)

`v2.4.1`

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Process overloads as a whole in two-phase type checking (Ivan Levkivskyi, PR 22231)
Skip recursive setup for frame-private nested functions in mypyc (Piotr Sawicki, PR 22187)

`v2.3.1`

Compare Source

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)

`v1.20.2`

Compare Source

Use WAL with SQLite cache and fix close (Shantanu, PR 21154)
Adjust SQLite journal mode (Ivan Levkivskyi, PR 21217)
Correctly aggregate narrowing information on parent expressions (Shantanu, PR 21206)
Fix regression related to generic callables (Shantanu, PR 21208)
Fix regression by avoiding widening types in some contexts (Shantanu, PR 21242)
Fix slicing in non-strict optional mode (Shantanu, PR 21282)
mypyc: Fix match statement semantics for "or" pattern (Shantanu, PR 21156)
mypyc: Fix issue with module dunder attributes (Piotr Sawicki, PR 21275)
Initial support for Python 3.15.0a8 (Marc Mueller, PR 21255)

`v1.20.1`

Compare Source

Always disable sync in SQLite cache (Ivan Levkivskyi, PR 21184)
Temporarily skip few base64 tests (Ivan Levkivskyi, PR 21193)
Revert dict.__or__ typeshed change (Ivan Levkivskyi, PR 21186)
Fix narrowing for match case with variadic tuples (Shantanu, PR 21192)
Avoid narrowing type[T] in type calls (Shantanu, PR 21174)
Fix regression for catching empty tuple in except (Shantanu, PR 21153)
Fix reachability for frozenset and dict view narrowing (Shantanu, PR 21151)
Fix narrowing with chained comparison (Shantanu, PR 21150)
Avoid narrowing to unreachable at module level (Shantanu, PR 21144)
Allow dangerous identity comparisons to Any typed variables (Shantanu, PR 21142)
--warn-unused-config should not be a strict flag (Ivan Levkivskyi, PR 21139)

`v1.19.1`

Compare Source

Fix noncommutative joins with bounded TypeVars (Shantanu, PR 20345)
Respect output format for cached runs by serializing raw errors in cache metas (Ivan Levkivskyi, PR 20372)
Allow types.NoneType in match cases (A5rocks, PR 20383)
Fix mypyc generator regression with empty tuple (BobTheBuidler, PR 20371)
Fix crash involving Unpack-ed TypeVarTuple (Shantanu, PR 20323)
Fix crash on star import of redefinition (Ivan Levkivskyi, PR 20333)
Fix crash on typevar with forward ref used in other module (Ivan Levkivskyi, PR 20334)
Fail with an explicit error on PyPy (Ivan Levkivskyi, PR 20389)

`v1.18.2`

Compare Source

Fix crash on recursive alias (Ivan Levkivskyi, PR 19845)
Add additional guidance for stubtest errors when runtime is object.__init__ (Stephen Morton, PR 19733)
Fix handling of None values in f-string expressions in mypyc (BobTheBuidler, PR 19846)

`v1.17.1`

Compare Source

Retain None as constraints bottom if no bottoms were provided (Stanislav Terliakov, PR 19485)
Fix "ignored exception in hasattr" in dmypy (Stanislav Terliakov, PR 19428)
Prevent a crash when InitVar is redefined with a method in a subclass (Stanislav Terliakov, PR 19453)

`v1.12.1`

Compare Source

Fix crash when showing partially analyzed type in error message (Ivan Levkivskyi, PR 17961)
Fix iteration over union (when self type is involved) (Shantanu, PR 17976)
Fix type object with type var default in union context (Jukka Lehtosalo, PR 17991)
Revert change to os.path stubs affecting use of os.PathLike[Any] (Shantanu, PR 17995)

`v1.11.2`

Compare Source

Alternative fix for a union-like literal string (Ivan Levkivskyi, PR 17639)
Unwrap TypedDict item types before storing (Ivan Levkivskyi, PR 17640)

`v1.11.1`

Compare Source

Fix RawExpressionType.accept crash with --cache-fine-grained (Anders Kaseorg, PR 17588)
Fix PEP 604 isinstance caching (Shantanu, PR 17563)
Fix typing.TypeAliasType being undefined on python < 3.12 (Nikita Sobolev, PR 17558)
Fix types.GenericAlias lookup crash (Shantanu, PR 17543)

`v1.10.1`

Compare Source

Fix error reporting on cached run after uninstallation of third party library (Shantanu, PR 17420)

We’ve just uploaded mypy 1.1.1 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 `dataclass_transform``

This release adds full support for the dataclass_transform decorator defined in PEP 681. This allows decorators, base classes, and metaclasses that generate a __init__ method or other methods based on the properties of that class (similar to dataclasses) to have those methods recognized by mypy.

This was contributed by Wesley Collin Wright.

Dedicated Error Code for Method Assignments

Mypy can’t safely check all assignments to methods (a form of monkey patching), so mypy generates an error by default. To make it easier to ignore this error, mypy now uses the new error code method-assign for this. By disabling this error code in a file or globally, mypy will no longer complain about assignments to methods if the signatures are compatible.

Mypy also supports the old error code assignment for these assignments to prevent a backward compatibility break. More generally, we can use this mechanism in the future if we wish to split or rename another existing error code without causing backward compatibility issues.

This was contributed by Ivan Levkivskyi (PR 14570).

Fixes to Crashes

Fix a crash on walrus in comprehension at class scope (Ivan Levkivskyi, PR 14556)
Fix crash related to value-constrained TypeVar (Shantanu, PR 14642)

Fixes to Cache Corruption

Fix generic TypedDict/NamedTuple caching (Ivan Levkivskyi, PR 14675)

Mypyc Fixes and Improvements

Raise "non-trait base must be first..." error less frequently (Richard Si, PR 14468)
Generate faster code for bool comparisons and arithmetic (Jukka Lehtosalo, PR 14489)
Optimize __(a)enter__/__(a)exit__ for native classes (Jared Hance, PR 14530)
Detect if attribute definition conflicts with base class/trait (Jukka Lehtosalo, PR 14535)
Support __(r)divmod__ dunders (Richard Si, PR 14613)
Support __pow__, __rpow__, and __ipow__ dunders (Richard Si, PR 14616)
Fix crash on star unpacking to underscore (Ivan Levkivskyi, PR 14624)
Fix iterating over a union of dicts (Richard Si, PR 14713)

Fixes to Detecting Undefined Names (used-before-def)

Correctly handle walrus operator (Stas Ilinskiy, PR 14646)
Handle walrus declaration in match subject correctly (Stas Ilinskiy, PR 14665)

Stubgen Improvements

Stubgen is a tool for automatically generating draft stubs for libraries.

Allow aliases below the top level (Chad Dombrova, PR 14388)
Fix crash with PEP 604 union in type variable bound (Shantanu, PR 14557)
Preserve PEP 604 unions in generated .pyi files (hamdanal, PR 14601)

Stubtest Improvements

Stubtest is a tool for testing that stubs conform to the implementations.

Update message format so that it’s easier to go to error location (Avasam, PR 14437)
Handle name-mangling edge cases better (Alex Waygood, PR 14596)

Changes to Error Reporting and Messages

Add new TypedDict error code typeddict-unknown-key (JoaquimEsteves, PR 14225)
Give arguments a more reasonable location in error messages (Max Murin, PR 14562)
In error messages, quote just the module's name (Ilya Konstantinov, PR 14567)
Improve misleading message about Enum() (Rodrigo Silva, PR 14590)
Suggest importing from typing_extensions if definition is not in typing (Shantanu, PR 14591)
Consistently use type-abstract error code (Ivan Levkivskyi, PR 14619)
Consistently use literal-required error code for TypedDicts (Ivan Levkivskyi, PR 14621)
Adjust inconsistent dataclasses plugin error messages (Wesley Collin Wright, PR 14637)
Consolidate literal bool argument error messages (Wesley Collin Wright, PR 14693)

Other Fixes and Improvements

Check that type guards accept a positional argument (EXPLOSION, PR 14238)
Fix bug with in operator used with a union of Container and Iterable (Max Murin, PR 14384)
Support protocol inference for type[T] via metaclass (Ivan Levkivskyi, PR 14554)
Allow overlapping comparisons between bytes-like types (Shantanu, PR 14658)
Fix mypy daemon documentation link in README (Ivan Levkivskyi, PR 14644)

Typeshed Updates

Typeshed is now modular and distributed as separate PyPI packages for everything except the standard library stubs. Please see git log for full list of typeshed changes.

Acknowledgements

Thanks to all mypy contributors who contributed to this release:

Alex Waygood
Avasam
Chad Dombrova
dosisod
EXPLOSION
hamdanal
Ilya Konstantinov
Ivan Levkivskyi
Jared Hance
JoaquimEsteves
Jukka Lehtosalo
Marc Mueller
Max Murin
Michael Lee
Michael R. Crusoe
Richard Si
Rodrigo Silva
Shantanu
Stas Ilinskiy
Wesley Collin Wright
Yilei "Dolee" Yang
Yurii Karabas

We’d also like to thank our employer, Dropbox, for funding the mypy core team.

Posted by Max Murin

`v1.0.1`

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`v1.0.0`

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This PR has been generated by Mend Renovate CLI.

This PR contains the following updates: | Package | Update | Change | |---|---|---| | [mypy](https://github.com/python/mypy) ([changelog](https://mypy.readthedocs.io/en/latest/changelog.html)) | major | `==0.991` → `==2.4.1` | --- ### Release Notes <details> <summary>python/mypy (mypy)</summary> ### [`v2.4.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-241) [Compare Source](https://github.com/python/mypy/compare/v2.4.0...v2.4.1) - Process overloads as a whole in two-phase type checking (Ivan Levkivskyi, PR [22231](https://github.com/python/mypy/pull/22231)) - Skip recursive setup for frame-private nested functions in mypyc (Piotr Sawicki, PR [22187](https://github.com/python/mypy/pull/22187)) ### [`v2.4.0`](https://github.com/python/mypy/compare/v2.3.1...v2.4.0) [Compare Source](https://github.com/python/mypy/compare/v2.3.1...v2.4.0) ### [`v2.3.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-231) [Compare Source](https://github.com/python/mypy/compare/v2.3.0...v2.3.1) - Fix mypyc crash on double yielding Iterators (Daniël van Noord, PR [21826](https://github.com/python/mypy/pull/21826)) - Fix mypyc `default_factory` for inherited dataclass (Daniël van Noord, PR [21785](https://github.com/python/mypy/pull/21785)) - Clear mypyc coroutine env on coroutine completion (Piotr Sawicki, PR [21734](https://github.com/python/mypy/pull/21734)) - Fix crash when unpacking return value from overload (Shantanu, PR [21830](https://github.com/python/mypy/pull/21830)) ### [`v2.3.0`](https://github.com/python/mypy/compare/v2.2.0...v2.3.0) [Compare Source](https://github.com/python/mypy/compare/v2.2.0...v2.3.0) ### [`v2.2.0`](https://github.com/python/mypy/compare/v2.1.0...v2.2.0) [Compare Source](https://github.com/python/mypy/compare/v2.1.0...v2.2.0) ### [`v2.1.0`](https://github.com/python/mypy/compare/v2.0.0...v2.1.0) [Compare Source](https://github.com/python/mypy/compare/v2.0.0...v2.1.0) ### [`v2.0.0`](https://github.com/python/mypy/compare/v1.20.2...v2.0.0) [Compare Source](https://github.com/python/mypy/compare/v1.20.2...v2.0.0) ### [`v1.20.2`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1202) [Compare Source](https://github.com/python/mypy/compare/v1.20.1...v1.20.2) - Use WAL with SQLite cache and fix close (Shantanu, PR [21154](https://github.com/python/mypy/pull/21154)) - Adjust SQLite journal mode (Ivan Levkivskyi, PR [21217](https://github.com/python/mypy/pull/21217)) - Correctly aggregate narrowing information on parent expressions (Shantanu, PR [21206](https://github.com/python/mypy/pull/21206)) - Fix regression related to generic callables (Shantanu, PR [21208](https://github.com/python/mypy/pull/21208)) - Fix regression by avoiding widening types in some contexts (Shantanu, PR [21242](https://github.com/python/mypy/pull/21242)) - Fix slicing in non-strict optional mode (Shantanu, PR [21282](https://github.com/python/mypy/pull/21282)) - mypyc: Fix match statement semantics for "or" pattern (Shantanu, PR [21156](https://github.com/python/mypy/pull/21156)) - mypyc: Fix issue with module dunder attributes (Piotr Sawicki, PR [21275](https://github.com/python/mypy/pull/21275)) - Initial support for Python 3.15.0a8 (Marc Mueller, PR [21255](https://github.com/python/mypy/pull/21255)) ### [`v1.20.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1201) [Compare Source](https://github.com/python/mypy/compare/v1.20.0...v1.20.1) - Always disable sync in SQLite cache (Ivan Levkivskyi, PR [21184](https://github.com/python/mypy/pull/21184)) - Temporarily skip few base64 tests (Ivan Levkivskyi, PR [21193](https://github.com/python/mypy/pull/21193)) - Revert `dict.__or__` typeshed change (Ivan Levkivskyi, PR [21186](https://github.com/python/mypy/pull/21186)) - Fix narrowing for match case with variadic tuples (Shantanu, PR [21192](https://github.com/python/mypy/pull/21192)) - Avoid narrowing `type[T]` in type calls (Shantanu, PR [21174](https://github.com/python/mypy/pull/21174)) - Fix regression for catching empty tuple in except (Shantanu, PR [21153](https://github.com/python/mypy/pull/21153)) - Fix reachability for frozenset and dict view narrowing (Shantanu, PR [21151](https://github.com/python/mypy/pull/21151)) - Fix narrowing with chained comparison (Shantanu, PR [21150](https://github.com/python/mypy/pull/21150)) - Avoid narrowing to unreachable at module level (Shantanu, PR [21144](https://github.com/python/mypy/pull/21144)) - Allow dangerous identity comparisons to `Any` typed variables (Shantanu, PR [21142](https://github.com/python/mypy/pull/21142)) - `--warn-unused-config` should not be a strict flag (Ivan Levkivskyi, PR [21139](https://github.com/python/mypy/pull/21139)) ### [`v1.20.0`](https://github.com/python/mypy/compare/v1.19.1...v1.20.0) [Compare Source](https://github.com/python/mypy/compare/v1.19.1...v1.20.0) ### [`v1.19.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1191) [Compare Source](https://github.com/python/mypy/compare/v1.19.0...v1.19.1) - Fix noncommutative joins with bounded TypeVars (Shantanu, PR [20345](https://github.com/python/mypy/pull/20345)) - Respect output format for cached runs by serializing raw errors in cache metas (Ivan Levkivskyi, PR [20372](https://github.com/python/mypy/pull/20372)) - Allow `types.NoneType` in match cases (A5rocks, PR [20383](https://github.com/python/mypy/pull/20383)) - Fix mypyc generator regression with empty tuple (BobTheBuidler, PR [20371](https://github.com/python/mypy/pull/20371)) - Fix crash involving Unpack-ed TypeVarTuple (Shantanu, PR [20323](https://github.com/python/mypy/pull/20323)) - Fix crash on star import of redefinition (Ivan Levkivskyi, PR [20333](https://github.com/python/mypy/pull/20333)) - Fix crash on typevar with forward ref used in other module (Ivan Levkivskyi, PR [20334](https://github.com/python/mypy/pull/20334)) - Fail with an explicit error on PyPy (Ivan Levkivskyi, PR [20389](https://github.com/python/mypy/pull/20389)) ### [`v1.19.0`](https://github.com/python/mypy/compare/v1.18.2...v1.19.0) [Compare Source](https://github.com/python/mypy/compare/v1.18.2...v1.19.0) ### [`v1.18.2`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1182) [Compare Source](https://github.com/python/mypy/compare/v1.18.1...v1.18.2) - Fix crash on recursive alias (Ivan Levkivskyi, PR [19845](https://github.com/python/mypy/pull/19845)) - Add additional guidance for stubtest errors when runtime is `object.__init__` (Stephen Morton, PR [19733](https://github.com/python/mypy/pull/19733)) - Fix handling of None values in f-string expressions in mypyc (BobTheBuidler, PR [19846](https://github.com/python/mypy/pull/19846)) ### [`v1.18.1`](https://github.com/python/mypy/compare/v1.17.1...v1.18.1) [Compare Source](https://github.com/python/mypy/compare/v1.17.1...v1.18.1) ### [`v1.17.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1171) [Compare Source](https://github.com/python/mypy/compare/v1.17.0...v1.17.1) - Retain `None` as constraints bottom if no bottoms were provided (Stanislav Terliakov, PR [19485](https://github.com/python/mypy/pull/19485)) - Fix "ignored exception in `hasattr`" in dmypy (Stanislav Terliakov, PR [19428](https://github.com/python/mypy/pull/19428)) - Prevent a crash when InitVar is redefined with a method in a subclass (Stanislav Terliakov, PR [19453](https://github.com/python/mypy/pull/19453)) ### [`v1.17.0`](https://github.com/python/mypy/compare/v1.16.1...v1.17.0) [Compare Source](https://github.com/python/mypy/compare/v1.16.1...v1.17.0) ### [`v1.16.1`](https://github.com/python/mypy/compare/v1.16.0...v1.16.1) [Compare Source](https://github.com/python/mypy/compare/v1.16.0...v1.16.1) ### [`v1.16.0`](https://github.com/python/mypy/compare/v1.15.0...v1.16.0) [Compare Source](https://github.com/python/mypy/compare/v1.15.0...v1.16.0) ### [`v1.15.0`](https://github.com/python/mypy/compare/v1.14.1...v1.15.0) [Compare Source](https://github.com/python/mypy/compare/v1.14.1...v1.15.0) ### [`v1.14.1`](https://github.com/python/mypy/compare/v1.14.0...v1.14.1) [Compare Source](https://github.com/python/mypy/compare/v1.14.0...v1.14.1) ### [`v1.14.0`](https://github.com/python/mypy/compare/v1.13.0...v1.14.0) [Compare Source](https://github.com/python/mypy/compare/v1.13.0...v1.14.0) ### [`v1.13.0`](https://github.com/python/mypy/compare/v1.12.1...v1.13.0) [Compare Source](https://github.com/python/mypy/compare/v1.12.1...v1.13.0) ### [`v1.12.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1121) [Compare Source](https://github.com/python/mypy/compare/v1.12.0...v1.12.1) - Fix crash when showing partially analyzed type in error message (Ivan Levkivskyi, PR [17961](https://github.com/python/mypy/pull/17961)) - Fix iteration over union (when self type is involved) (Shantanu, PR [17976](https://github.com/python/mypy/pull/17976)) - Fix type object with type var default in union context (Jukka Lehtosalo, PR [17991](https://github.com/python/mypy/pull/17991)) - Revert change to `os.path` stubs affecting use of `os.PathLike[Any]` (Shantanu, PR [17995](https://github.com/python/mypy/pull/17995)) ### [`v1.12.0`](https://github.com/python/mypy/compare/v1.11.2...v1.12.0) [Compare Source](https://github.com/python/mypy/compare/v1.11.2...v1.12.0) ### [`v1.11.2`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1112) [Compare Source](https://github.com/python/mypy/compare/v1.11.1...v1.11.2) - Alternative fix for a union-like literal string (Ivan Levkivskyi, PR [17639](https://github.com/python/mypy/pull/17639)) - Unwrap `TypedDict` item types before storing (Ivan Levkivskyi, PR [17640](https://github.com/python/mypy/pull/17640)) ### [`v1.11.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1111) [Compare Source](https://github.com/python/mypy/compare/v1.11.0...v1.11.1) - Fix `RawExpressionType.accept` crash with `--cache-fine-grained` (Anders Kaseorg, PR [17588](https://github.com/python/mypy/pull/17588)) - Fix PEP 604 isinstance caching (Shantanu, PR [17563](https://github.com/python/mypy/pull/17563)) - Fix `typing.TypeAliasType` being undefined on python < 3.12 (Nikita Sobolev, PR [17558](https://github.com/python/mypy/pull/17558)) - Fix `types.GenericAlias` lookup crash (Shantanu, PR [17543](https://github.com/python/mypy/pull/17543)) ### [`v1.11.0`](https://github.com/python/mypy/compare/v1.10.1...v1.11.0) [Compare Source](https://github.com/python/mypy/compare/v1.10.1...v1.11.0) ### [`v1.10.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-1101) [Compare Source](https://github.com/python/mypy/compare/v1.10.0...v1.10.1) - Fix error reporting on cached run after uninstallation of third party library (Shantanu, PR [17420](https://github.com/python/mypy/pull/17420)) ### [`v1.10.0`](https://github.com/python/mypy/compare/1.9.0...v1.10.0) [Compare Source](https://github.com/python/mypy/compare/1.9.0...v1.10.0) ### [`v1.9.0`](https://github.com/python/mypy/compare/v1.8.0...1.9.0) [Compare Source](https://github.com/python/mypy/compare/v1.8.0...1.9.0) ### [`v1.8.0`](https://github.com/python/mypy/compare/v1.7.1...v1.8.0) [Compare Source](https://github.com/python/mypy/compare/v1.7.1...v1.8.0) ### [`v1.7.1`](https://github.com/python/mypy/compare/v1.7.0...v1.7.1) [Compare Source](https://github.com/python/mypy/compare/v1.7.0...v1.7.1) ### [`v1.7.0`](https://github.com/python/mypy/compare/v1.6.1...v1.7.0) [Compare Source](https://github.com/python/mypy/compare/v1.6.1...v1.7.0) ### [`v1.6.1`](https://github.com/python/mypy/compare/v1.6.0...v1.6.1) [Compare Source](https://github.com/python/mypy/compare/v1.6.0...v1.6.1) ### [`v1.6.0`](https://github.com/python/mypy/compare/v1.5.1...v1.6.0) [Compare Source](https://github.com/python/mypy/compare/v1.5.1...v1.6.0) ### [`v1.5.1`](https://github.com/python/mypy/compare/v1.5.0...v1.5.1) [Compare Source](https://github.com/python/mypy/compare/v1.5.0...v1.5.1) ### [`v1.5.0`](https://github.com/python/mypy/compare/v1.4.1...v1.5.0) [Compare Source](https://github.com/python/mypy/compare/v1.4.1...v1.5.0) ### [`v1.4.1`](https://github.com/python/mypy/compare/v1.4.0...v1.4.1) [Compare Source](https://github.com/python/mypy/compare/v1.4.0...v1.4.1) ### [`v1.4.0`](https://github.com/python/mypy/compare/v1.3.0...v1.4.0) [Compare Source](https://github.com/python/mypy/compare/v1.3.0...v1.4.0) ### [`v1.3.0`](https://github.com/python/mypy/compare/v1.2.0...v1.3.0) [Compare Source](https://github.com/python/mypy/compare/v1.2.0...v1.3.0) ### [`v1.2.0`](https://github.com/python/mypy/compare/v1.1.1...v1.2.0) [Compare Source](https://github.com/python/mypy/compare/v1.1.1...v1.2.0) ### [`v1.1.1`](https://github.com/python/mypy/blob/HEAD/CHANGELOG.md#Mypy-111) [Compare Source](https://github.com/python/mypy/compare/v1.0.1...v1.1.1) [Monday, 6 March 2023](https://mypy-lang.blogspot.com/2023/03/mypy-111-released.html) We’ve just uploaded mypy 1.1.1 to the Python Package Index ([PyPI](https://pypi.org/project/mypy/)). 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](http://mypy.readthedocs.io). ##### Support for \`dataclass_transform\`\` This release adds full support for the dataclass_transform decorator defined in [PEP 681](https://peps.python.org/pep-0681/#decorator-function-example). This allows decorators, base classes, and metaclasses that generate a \_\_init\_\_ method or other methods based on the properties of that class (similar to dataclasses) to have those methods recognized by mypy. This was contributed by Wesley Collin Wright. ##### Dedicated Error Code for Method Assignments Mypy can’t safely check all assignments to methods (a form of monkey patching), so mypy generates an error by default. To make it easier to ignore this error, mypy now uses the new error code method-assign for this. By disabling this error code in a file or globally, mypy will no longer complain about assignments to methods if the signatures are compatible. Mypy also supports the old error code assignment for these assignments to prevent a backward compatibility break. More generally, we can use this mechanism in the future if we wish to split or rename another existing error code without causing backward compatibility issues. This was contributed by Ivan Levkivskyi (PR [14570](https://github.com/python/mypy/pull/14570)). ##### Fixes to Crashes - Fix a crash on walrus in comprehension at class scope (Ivan Levkivskyi, PR [14556](https://github.com/python/mypy/pull/14556)) - Fix crash related to value-constrained TypeVar (Shantanu, PR [14642](https://github.com/python/mypy/pull/14642)) ##### Fixes to Cache Corruption - Fix generic TypedDict/NamedTuple caching (Ivan Levkivskyi, PR [14675](https://github.com/python/mypy/pull/14675)) ##### Mypyc Fixes and Improvements - Raise "non-trait base must be first..." error less frequently (Richard Si, PR [14468](https://github.com/python/mypy/pull/14468)) - Generate faster code for bool comparisons and arithmetic (Jukka Lehtosalo, PR [14489](https://github.com/python/mypy/pull/14489)) - Optimize \_\_(a)enter\_\_/\_\_(a)exit\_\_ for native classes (Jared Hance, PR [14530](https://github.com/python/mypy/pull/14530)) - Detect if attribute definition conflicts with base class/trait (Jukka Lehtosalo, PR [14535](https://github.com/python/mypy/pull/14535)) - Support \_\_(r)divmod\_\_ dunders (Richard Si, PR [14613](https://github.com/python/mypy/pull/14613)) - Support \_\_pow\_\_, \_\_rpow\_\_, and \_\_ipow\_\_ dunders (Richard Si, PR [14616](https://github.com/python/mypy/pull/14616)) - Fix crash on star unpacking to underscore (Ivan Levkivskyi, PR [14624](https://github.com/python/mypy/pull/14624)) - Fix iterating over a union of dicts (Richard Si, PR [14713](https://github.com/python/mypy/pull/14713)) ##### Fixes to Detecting Undefined Names (used-before-def) - Correctly handle walrus operator (Stas Ilinskiy, PR [14646](https://github.com/python/mypy/pull/14646)) - Handle walrus declaration in match subject correctly (Stas Ilinskiy, PR [14665](https://github.com/python/mypy/pull/14665)) ##### Stubgen Improvements Stubgen is a tool for automatically generating draft stubs for libraries. - Allow aliases below the top level (Chad Dombrova, PR [14388](https://github.com/python/mypy/pull/14388)) - Fix crash with PEP 604 union in type variable bound (Shantanu, PR [14557](https://github.com/python/mypy/pull/14557)) - Preserve PEP 604 unions in generated .pyi files (hamdanal, PR [14601](https://github.com/python/mypy/pull/14601)) ##### Stubtest Improvements Stubtest is a tool for testing that stubs conform to the implementations. - Update message format so that it’s easier to go to error location (Avasam, PR [14437](https://github.com/python/mypy/pull/14437)) - Handle name-mangling edge cases better (Alex Waygood, PR [14596](https://github.com/python/mypy/pull/14596)) ##### Changes to Error Reporting and Messages - Add new TypedDict error code typeddict-unknown-key (JoaquimEsteves, PR [14225](https://github.com/python/mypy/pull/14225)) - Give arguments a more reasonable location in error messages (Max Murin, PR [14562](https://github.com/python/mypy/pull/14562)) - In error messages, quote just the module's name (Ilya Konstantinov, PR [14567](https://github.com/python/mypy/pull/14567)) - Improve misleading message about Enum() (Rodrigo Silva, PR [14590](https://github.com/python/mypy/pull/14590)) - Suggest importing from `typing_extensions` if definition is not in typing (Shantanu, PR [14591](https://github.com/python/mypy/pull/14591)) - Consistently use type-abstract error code (Ivan Levkivskyi, PR [14619](https://github.com/python/mypy/pull/14619)) - Consistently use literal-required error code for TypedDicts (Ivan Levkivskyi, PR [14621](https://github.com/python/mypy/pull/14621)) - Adjust inconsistent dataclasses plugin error messages (Wesley Collin Wright, PR [14637](https://github.com/python/mypy/pull/14637)) - Consolidate literal bool argument error messages (Wesley Collin Wright, PR [14693](https://github.com/python/mypy/pull/14693)) ##### Other Fixes and Improvements - Check that type guards accept a positional argument (EXPLOSION, PR [14238](https://github.com/python/mypy/pull/14238)) - Fix bug with in operator used with a union of Container and Iterable (Max Murin, PR [14384](https://github.com/python/mypy/pull/14384)) - Support protocol inference for type\[T] via metaclass (Ivan Levkivskyi, PR [14554](https://github.com/python/mypy/pull/14554)) - Allow overlapping comparisons between bytes-like types (Shantanu, PR [14658](https://github.com/python/mypy/pull/14658)) - Fix mypy daemon documentation link in README (Ivan Levkivskyi, PR [14644](https://github.com/python/mypy/pull/14644)) ##### Typeshed Updates Typeshed is now modular and distributed as separate PyPI packages for everything except the standard library stubs. Please see [git log](https://github.com/python/typeshed/commits/main?after=5ebf892d0710a6e87925b8d138dfa597e7bb11cc+0\&branch=main\&path=stdlib) for full list of typeshed changes. ##### Acknowledgements Thanks to all mypy contributors who contributed to this release: - Alex Waygood - Avasam - Chad Dombrova - dosisod - EXPLOSION - hamdanal - Ilya Konstantinov - Ivan Levkivskyi - Jared Hance - JoaquimEsteves - Jukka Lehtosalo - Marc Mueller - Max Murin - Michael Lee - Michael R. Crusoe - Richard Si - Rodrigo Silva - Shantanu - Stas Ilinskiy - Wesley Collin Wright - Yilei "Dolee" Yang - Yurii Karabas We’d also like to thank our employer, Dropbox, for funding the mypy core team. Posted by Max Murin ### [`v1.0.1`](https://github.com/python/mypy/compare/v1.0.0...v1.0.1) [Compare Source](https://github.com/python/mypy/compare/v1.0.0...v1.0.1) ### [`v1.0.0`](https://github.com/python/mypy/compare/v0.991...v1.0.0) [Compare Source](https://github.com/python/mypy/compare/v0.991...v1.0.0) </details> --- ### Configuration 📅 **Schedule**: (UTC) - Branch creation - At any time (no schedule defined) - Automerge - At any time (no schedule defined) 🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied. ♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox. 🔕 **Ignore**: Close this PR and you won't be reminded about this update again. --- - [ ] If you want to rebase/retry this PR, check this box --- This PR has been generated by [Mend Renovate CLI](https://github.com/renovatebot/renovate).

renovate-bot added 1 commit

2026-10-29 14:06:17 -04:00

Update dependency mypy to v2 ad97af5fca