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Issues: python/mypy

Announcement issue for plugin API changes
#6617 opened Apr 3, 2019 by msullivan
Open 15
Python 3.13 tracking issue
#17264 opened May 18, 2024 by hauntsaninja
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Issues list

Doesn't recognize all uses of super bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#857 opened Aug 21, 2015 by agentydragon
4
False positive in conditional with with statements bug mypy got something wrong
#15605 opened Jul 6, 2023 by freewilll
1
Overloaded function as a subtype of function with union types args/return bug mypy got something wrong priority-1-normal topic-overloads topic-union-types
#495 opened Nov 8, 2014 by JukkaL
Reject bound covariant type variable in an argument type bug mypy got something wrong priority-1-normal topic-type-variables
#734 opened Aug 9, 2015 by JukkaL
1
12
Check attributes for variance violations bug mypy got something wrong priority-1-normal topic-type-variables
#735 opened Aug 9, 2015 by JukkaL
4
Check covariant variable used in an invariant position in a return type bug mypy got something wrong priority-1-normal topic-type-variables
#737 opened Aug 9, 2015 by JukkaL
annotations on self are not understood with Protocols bug mypy got something wrong
#16291 opened Oct 19, 2023 by finite-state-machine
5
Allow type aliases be used as variables bug mypy got something wrong false-positive mypy gave an error on correct code priority-2-low
#327 opened Jul 25, 2014 by JukkaL
2
Type check global after function definition bug mypy got something wrong priority-2-low topic-variable-scope
#538 opened Dec 19, 2014 by spkersten
9
"Statement is unreachable" false positive when calling callable on union with object bug mypy got something wrong topic-reachability Detecting unreachable code topic-type-narrowing Conditional type narrowing / binder
#11764 opened Dec 16, 2021 by DetachHead
10
x = x or y with x undeclared gives no error bug mypy got something wrong priority-1-normal topic-runtime-semantics mypy doesn't model runtime semantics correctly topic-variable-scope
#937 opened Oct 15, 2015 by jhance
2
Type check coverage reports need more love bug mypy got something wrong priority-1-normal
#1123 opened Jan 13, 2016 by gvanrossum
5
Improve type inference for recursive protocols bug mypy got something wrong priority-1-normal topic-protocols topic-recursive-types
#3829 opened Aug 15, 2017 by ilevkivskyi
1
@overload is required when using @dispatch bug mypy got something wrong false-positive mypy gave an error on correct code
#3853 opened Aug 21, 2017 by orenbenkiki
1
mypy infers the wrong type for classmethods bug mypy got something wrong topic-descriptors Properties, class vs. instance attributes topic-runtime-semantics mypy doesn't model runtime semantics correctly
#3482 opened Jun 1, 2017 by carljm
3
Inconsistent type inference with Union[List[int], T] context bug mypy got something wrong topic-union-types
#3506 opened Jun 7, 2017 by JukkaL
Mypy does not recheck files when follow_imports changes for dependencies bug mypy got something wrong priority-0-high
#7777 opened Oct 22, 2019 by nickgaya
2
lambda: (yield) causes spurious errors bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#3551 opened Jun 15, 2017 by ambv
1
Error on cyclic import from package hidden in a function bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-import-cycles
#2418 opened Nov 8, 2016 by lopuhin
1
mypy doesn't recognize incompatible type in Dict bug mypy got something wrong priority-1-normal
#2538 opened Dec 8, 2016 by etibger
3
Don't silently ignore some partial types bug mypy got something wrong
#3031 opened Mar 19, 2017 by ddfisher
1
Underspecified type variables should not infer UninhabitedType bug mypy got something wrong priority-1-normal topic-type-variables
#3032 opened Mar 19, 2017 by ddfisher
1
isinstance(x, Type) not accepted bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-runtime-semantics mypy doesn't model runtime semantics correctly topic-type-narrowing Conditional type narrowing / binder topic-usability
#3060 opened Mar 27, 2017 by JukkaL
6
List[<nothing>] error bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-type-context Type context / bidirectional inference topic-usability
#3283 opened Apr 29, 2017 by jcrmatos
14
zip silently returns Any because of loose join with star types bug mypy got something wrong priority-1-normal
#3370 opened May 16, 2017 by ilevkivskyi
7
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