python/mypy

Issues

• Confusing error from bidirectional inference?

  #18297 opened 6 days ago by alicederyn
  1

• Type Narrowing for Dictionary Keys Not Working with Literal Types After in Check

  #18208 opened 23 days ago by littleswampman
  2

• Special-case .pop() on TypedDict

  #18296 opened 6 days ago by Lancetnik
  2

• `float` and `complex` forcibly change invariant types to covariant

  #18257 opened 16 days ago by jorenham
  1

• race in record_missing_stub_packages (No such file or directory: '.mypy_cache/missing_stubs')

  #18283 opened 10 days ago by kalvdans
  0

• Mypy exclude doesn't work as expected

  #18284 opened 7 days ago by artsiomkaltovich
  1

• Disallow `ClassVar` and `Final` qualifiers in `TypedDict` and `NamedTuple` items

  #18220 opened 10 days ago by brianschubert
  0

• mypy incorrectly complains about function signature in @overload

  #18282 opened 10 days ago by ErwandKe
  2

• Parameters of the form type[typevar] cause issues with type refinement

  #18277 opened 11 days ago by Pluviolithic
  2

• `type[Literal['']]` does not accept `str` as the type

  #18196 opened 11 days ago by sobolevn
  11

• `self.__class__` produces a type check with a constructor where a concrete reference to the class works fine

  #18279 opened 11 days ago by glyph
  1

• Add --strict-bytes flag to disable promotions to bytes

  #18256 opened 12 days ago by JukkaL
  1

• Multiple inheritance with Generic leads to [misc] error

  #18268 opened 14 days ago by Lancetnik
  3

• Unexpected "Never has no attribute..." error for declared context manager enter result type

  #18271 opened 13 days ago by ncoghlan
  1

• mypy incorrectly complains about incompatible type error

  #18267 opened 14 days ago by athyuttamre
  2

• Generic type falling back to object - possibly related to `type[ Union ]`?

  #18265 opened 14 days ago by JakeSummers
  1

• VSCode: Daemon crashed! pydantic related

  #18258 opened 15 days ago by jpedrick
  2

• Mypy is unable to detect if a builtin class supports a generic protocol. Unexpected behavior with custom classes too.

  #18190 opened a month ago by AgarwalPragy
  1

• False override error with Unpack and TypedDict

  #18250 opened 16 days ago by mharding-hpe
  2

• `typing.TypeAliasType` cannot be used to declare self-referential types

  #18252 opened 16 days ago by bzoracler
  0

• INTERNAL ERROR: maximum semantic analysis iteration count reached Found 1 error in 1 file (errors prevented further checking)

  #18237 opened 18 days ago by Ryang20718
  3

• False positive `[operator]` on union of dicts with heterogeneous value types

  #18236 opened 19 days ago by harahu
  3

• Classmethod constructor pattern on a generic container with a bound typevar has incompatible type with fixed output type

  #18244 opened 17 days ago by pechersky
  3

• Unpack forces all optional args

  #18243 opened 18 days ago by alon-ba
  1

• Function accepts callable, but a typeshed custom Protocol was passed

  #18239 opened 18 days ago by Andrew-Chen-Wang
  1

• Wrong return type inferred for overload with a type variable

  #18233 opened 19 days ago by eltoder
  1

• Partial type that is "initialised" via assignment is only temporarily narrowed by `isinstance`

  #18238 opened 18 days ago by tyralla
  0

• Accept nesting Final in ClassVar for dataclasses

  #18235 opened 19 days ago by ncanceill
  1

• slice behavior difference in mypy 1.14+dev and 1.13

  #18225 opened 19 days ago by Dr-Irv
  13

• `TypeAlias` to alias a `ClassVar` with an `Annotated` type raises an error

  #18226 opened 20 days ago by caniko
  2

• Join and meet are not symmetric

  #18199 opened 20 days ago by hauntsaninja
  0

• AnyStr parameter + `sys.version_info` check in function causes mypy to not realize True is bool

  #18210 opened 20 days ago by jwodder
  1

• segfault on recursive generic function class

  #18219 opened 21 days ago by CharlesFauman
  2

• Dataclasses, `__replace__` and LSP violations

  #18216 opened 21 days ago by Viicos
  1

• Inconsistent type checking between first and subsequent executions (possibly due to `SyntaxWarning: invalid escape sequence`)

  #18215 opened 22 days ago by bluenote10
  1

• Unsupported left operand for type * in onnxscript and opset15

  #18200 opened 22 days ago by tuanle0910
  5

• [stubgen] C++ signature in docstring falsely included in generated stubs

  #18206 opened 23 days ago by mattangus
  0

• a pretty bad bug report about a segfault, but at least I can show you the repo

  #18195 opened 25 days ago by glyph
  4

• `functools.wraps` `Any` in wrapped function

  #18204 opened 24 days ago by CoolCat467
  0

• Arithmetic with type variables fails to typecheck ("Unsupported operand types")

  #18203 opened 24 days ago by inducer
  0

• unexpected Incompatible types when using Union type in list

  #18201 opened 24 days ago by MatthieuCMira
  1

• Generic type aliases with TypeVar defaults infer to an incorrect type

  #18188 opened 25 days ago by alexdrydew
  1

• Limited inference with union of callables and assignment to a union

  #18191 opened a month ago by Viicos
  0

• Recursive sequence type of `Sequence[NotAString]` should not accept `str`

  #18184 opened a month ago by jorenham
  7

• Mypy disallows overriding a generic type attribute with a property

  #18189 opened a month ago by mmdanggg2
  0

• Conditional statements don't work inside a NamedTuple class body

  #18187 opened a month ago by tungol
  0

• TypeVar leaks out of `__init__` with self-type

  #18185 opened a month ago by A5rocks
  0

• Self does not work with delegation and an explicit return type

  #18182 opened a month ago by voidspace
  2

• Mypy doesn't recognize that truth value testing for sequences like `and my_list` result in a boolean type

  #18181 opened a month ago by Yazan-Sharaya
  2

• Dataclass doesn't match a protocol if a field is Callable (expected settable variable, got read-only attribute)

  #18179 opened a month ago by wodny
  0