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Issues: python/mypy

Announcement issue for plugin API changes
#6617 opened Apr 3, 2019 by msullivan
Open 18
Python 3.13 tracking issue
#17264 opened May 18, 2024 by hauntsaninja
Open 3
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2,756 Open 7,949 Closed
2,756 Open 7,949 Closed
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Issues list

Change in inference of overloads involving Hashable and slice now that slice is generic bug mypy got something wrong
#18149 opened Nov 12, 2024 by AlexWaygood
4
variance inferred oincorrectly when class has both a covariant and contravariant generic and instance attribute is assigned without a type annotation bug mypy got something wrong topic-pep-695 Issues related to PEP 695 syntax topic-type-variables
#18147 opened Nov 12, 2024 by DetachHead
==-based narrowing of Optional feature topic-type-narrowing Conditional type narrowing / binder
#18135 opened Nov 9, 2024 by tyralla
Daemonized mypy ignores errors on files that previously passed (cache bug) bug mypy got something wrong topic-daemon dmypy topic-incremental
#18131 opened Nov 9, 2024 by emernic
3
IsADirectoryError for namespace packages when using --linecoverage-report crash
#18128 opened Nov 8, 2024 by AAriam
1
False positive "Statement is unreachable" when checking if typevar is None bug mypy got something wrong topic-overlap Overlapping equality check topic-type-variables
#18126 opened Nov 7, 2024 by Cnoor0171
1
1
Type error randomly raised when using a decorator and a type: ignore comment bug mypy got something wrong
#18125 opened Nov 7, 2024 by Viicos
1
await-not-async missed & false alarms with genexp and list comprehensions bug mypy got something wrong good-first-issue topic-async async, await, asyncio topic-runtime-semantics mypy doesn't model runtime semantics correctly
#18124 opened Nov 7, 2024 by jakkdl
2
mypy doesn't flag continue/break/return in except* feature good-first-issue topic-runtime-semantics mypy doesn't model runtime semantics correctly
#18123 opened Nov 7, 2024 by jakkdl
1
3
Mypy crashes in 1.13.0 due to hybrid properties comparison crash
#18120 opened Nov 7, 2024 by kylieatalan
2
(🐞) dmypy doesn't report any errors when passed an absolute file if the project is installed with a .pth file bug mypy got something wrong
#18117 opened Nov 7, 2024 by KotlinIsland
Stub generation adds too many explicit re-exports bug mypy got something wrong
#18113 opened Nov 6, 2024 by henzef
2
(🐞) dmypy can check files that dont exist bug mypy got something wrong
#18111 opened Nov 6, 2024 by KotlinIsland
Support override for attr-defined errors (something like a promise to mypy that the attr is defined going forward) feature
#18109 opened Nov 6, 2024 by zwimer
2
(🐞) errors from imported modules aren't reported when project is installed bug mypy got something wrong
#18106 opened Nov 5, 2024 by KotlinIsland
Assertion fails in is_overlapping_types() when comparing Unpack TypeVarTuple with default type crash topic-pep-646 PEP 646 (TypeVarTuple, Unpack)
#18105 opened Nov 5, 2024 by h4l
Crash on sequence match statement in generic class with restricted type variable bound to sequence crash topic-match-statement Python 3.10's match statement topic-type-variables
#18089 opened Nov 1, 2024 by rwhender
1
Calling type[T] returns the parent of T on Python 3.12+ bug mypy got something wrong
#18088 opened Nov 1, 2024 by Avasam
Internal error: De-serialization failure: TypeInfo not fixed crash
#18087 opened Nov 1, 2024 by inducer
mypy suggests Iterator[Never], wants Iterator[None] as return type of contextmanager bug mypy got something wrong
#18086 opened Nov 1, 2024 by alexei
Stubgen generates __mypy-replace method for @dataclass_transform bug mypy got something wrong topic-dataclasses topic-stubgen
#18081 opened Oct 31, 2024 by KapJI
@hamdanal
5
Mypy Self Checking Should Enable --warn-unreachable refactoring Changing mypy's internals topic-reachability Detecting unreachable code
#18079 opened Oct 31, 2024 by davidhalter
5
Enable --warn-unreachable in --strict in Mypy 2.0 topic-configuration Configuration files and flags topic-reachability Detecting unreachable code
#18078 opened Oct 31, 2024 by davidhalter
1
[arg-type] "Argument has incompatible type" for TypeVar bound to Union passed to overloaded function bug mypy got something wrong
#18075 opened Oct 30, 2024 by Avasam
Spurious type error in except branch after an assignment from an await that throws bug mypy got something wrong
#18074 opened Oct 30, 2024 by bcmills
ProTip! What’s not been updated in a month: updated:<2024-10-12.