12 Pull requests merged by 9 people

• Add a few more tests for mypyc_attr native_class (dunder methods and metaclasses)

  #18999 merged May 2, 2025

• [mypyc] Refactor IR building for generator functions

  #19008 merged May 2, 2025

• dmypy suggest can now suggest through contextmanager-based decorators

  #18948 merged May 2, 2025

• Type alias stubgen fix

  #18960 merged May 1, 2025

• Check superclass compatibility of untyped methods if --check-untyped-defs is set

  #18970 merged May 1, 2025

• Bug fix of __r<magic_methods>__ being used under the same __<magic_method>__ hook

  #18995 merged May 1, 2025

• support for strict_bytes in stubtest

  #19002 merged May 1, 2025

• Prioritize .pyi from -stubs packages over bundled .pyi

  #19001 merged May 1, 2025

• Do not narrow types to Never with binder

  #18972 merged Apr 30, 2025

• Local forward refs should precede global forward refs

  #19000 merged Apr 30, 2025

• Add missing branch for is_subtype(TypeType, Overload)

  #18975 merged Apr 26, 2025

• Fix typo in testPropertySetterDecorated

  #18946 merged Apr 26, 2025

10 Pull requests opened by 8 people

• Extend special-case for context-based typevar inference in return position to typevar unions

  #18976 opened Apr 26, 2025

• stubgen: infer types for class attributes

  #18978 opened Apr 27, 2025

• Add `dmypy watch` command

  #18985 opened Apr 27, 2025

• Prefer "own" type vars (owned by current function) when building "any of" constraints

  #18986 opened Apr 28, 2025

• Missing args callable

  #18990 opened Apr 28, 2025

• Attempt to fix Distribute Tuple False Positive bug

  #19005 opened Apr 30, 2025

• extended error messages for unnarrowed unions

  #19007 opened Apr 30, 2025

• Refactor: modularize long methods in Options and checkexpr

  #19010 opened May 1, 2025

• Refactor: extract logic in Options.__init__ into helper methods

  #19011 opened May 1, 2025

• [mypyc] Show the reason why a class can't be a native class

  #19016 opened May 2, 2025

18 Issues closed by 12 people

• Conditional import of a class follows imports of all branches

  #19009 closed May 1, 2025

• stubgen does not handle TypeAlias

  #18905 closed May 1, 2025

• A way to prevent MyPy from implictly checking the __r<magic method>__

  #18945 closed May 1, 2025

• stubtest ignores `strict_bytes = true` in `pyproject.toml` 1.15.0

  #18744 closed May 1, 2025

• mypy --show-traceback --show-error-codes src/ tests/ failing

  #19004 closed May 1, 2025

• PEP 561 stub packages should take precedence over bundled `.pyi` stubs

  #18997 closed May 1, 2025

• Internal error when running check-classes.test with pytest

  #18994 closed Apr 30, 2025

• mypy thinks value is `<nothing>` when it isn't

  #15793 closed Apr 30, 2025

• isinstance erases type info

  #12949 closed Apr 30, 2025

• Type-narrowing from parent to child class produces `Never` if inheriting from a concrete version of a generic parent class.

  #16494 closed Apr 30, 2025

• Change of binder behavior whan narrowing to unrelated type

  #18967 closed Apr 30, 2025

• Regression related to forward reference and nested classes

  #18988 closed Apr 30, 2025

• Combining `@dataclass` and `NamedTuple` leads to crash in Python 3.13+

  #18982 closed Apr 27, 2025

• Support `TypeIs[Protocol]`

  #18981 closed Apr 27, 2025

• Unable to annotate generic class member of generic class

  #18979 closed Apr 27, 2025

• Mypy doesn't show errors when base method has `*args: Any` or `**kwargs: Any`

  #18980 closed Apr 27, 2025

• Config file at ~/.mypy.ini is not used

  #18977 closed Apr 27, 2025

• ``Expression is of type "type[int]", not "type[int]"`` when using `assert_type` and `TypeAlias`

  #18974 closed Apr 26, 2025

15 Issues opened by 15 people

• `kw_only` dataclass fields confuse mypy on argument order

  #19017 opened May 2, 2025

• TYPE_CHECKING overload with implementation just outside flags second usage, but not first

  #19015 opened May 2, 2025

• `sqlalchemy.ext.mypy.plugin` causes internal error

  #19014 opened May 2, 2025

• Support file-level assertions as inline configuration

  #19013 opened May 1, 2025

• `--exclude` regular expression leading "/" does not match in current directory

  #19012 opened May 1, 2025

• Incorrect type inference with `__radd__` with subclass of `tuple[int, ...]`

  #19006 opened Apr 30, 2025

• Overloaded `__init__` prevents type from being recognized as an attrs class

  #19003 opened Apr 30, 2025

• Crash with Generic Class and Dict

  #18996 opened Apr 29, 2025

• lru_cache classmethod: variable has type "Self" after assignment

  #18993 opened Apr 28, 2025

• Mypyc produces module that crashes (segmentation fault) when executed

  #18992 opened Apr 28, 2025

• Recent performance regressions

  #18991 opened Apr 28, 2025

• Mypy doesn't recognize `@staticmethod`-like decorator

  #18989 opened Apr 28, 2025

• Non-inline `__init_subclass__` definition not recognized, despite giving type hints.

  #18987 opened Apr 28, 2025

• attrs plugin does not support generic type

  #18973 opened Apr 26, 2025

• Automatically detect when uv is being used

  #18971 opened Apr 26, 2025

23 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Use checkmember.py to check protocol subtyping

  #18943 commented on Apr 30, 2025 • 9 new comments

• Add special support for `@django.cached_property` needed in `django-stubs`

  #18959 commented on May 2, 2025 • 4 new comments

• Make infer_condition_value recognize the whole truth table

  #18944 commented on May 2, 2025 • 2 new comments

• NoneType handling for str.format() with specifiers

  #18952 commented on May 2, 2025 • 1 new comment

• Consider property access from class objects (now for real)

  #18969 commented on Apr 26, 2025 • 0 new comments

• Fix `dmypy suggest` interaction with `__new__`

  #18966 commented on May 1, 2025 • 0 new comments

• Support several more constructs in stubgen's AliasPrinter

  #18888 commented on May 1, 2025 • 0 new comments

• [PEP 747] Recognize TypeForm[T] type and values (#9773)

  #18690 commented on Apr 28, 2025 • 0 new comments

• Attributes without a default cannot follow attributes with one

  #17731 commented on May 2, 2025 • 0 new comments

• No `TypeVar` variable inference in ternary operators

  #18817 commented on May 1, 2025 • 0 new comments

• `Self` not accepted when used with a `dataclass`

  #18920 commented on May 1, 2025 • 0 new comments

• (🐞) `files` set in config file causes command `-c` mode to not work

  #15632 commented on May 1, 2025 • 0 new comments

• Type checking fails to distribute across Tuple types

  #18922 commented on Apr 30, 2025 • 0 new comments

• 1.16 Release Planning

  #18739 commented on Apr 30, 2025 • 0 new comments

• Inference of Any against optional type infers Never

  #8829 commented on Apr 30, 2025 • 0 new comments

• Explicit Variables Warning Issue

  #18927 commented on Apr 29, 2025 • 0 new comments

• Issues related to numpy

  #18343 commented on Apr 29, 2025 • 0 new comments

• Update PEP 561 examples with modern packaging

  #13901 commented on Apr 29, 2025 • 0 new comments

• Support infer_variance= parameter for TypeVar (PEP 695)

  #17811 commented on Apr 28, 2025 • 0 new comments

• Mypy is expecting `type[Never]` in context when it shouldn't

  #18968 commented on Apr 28, 2025 • 0 new comments

• Detect impossible unpacking?

  #18783 commented on Apr 28, 2025 • 0 new comments

• wrongly reported typing error in `min` with `key` lambda function and default value when result is Optional

  #17221 commented on Apr 26, 2025 • 0 new comments

• dmypy suggest should not suggest for abstract methods?

  #18965 commented on Apr 26, 2025 • 0 new comments