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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

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
More precise type checking of NotImplemented and operator overloading bug mypy got something wrong priority-1-normal
#363 opened Aug 4, 2014 by JukkaL
3
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
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
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
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
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
Confusing error message when using AnyStr bug mypy got something wrong priority-0-high topic-join-v-union Using join vs. using unions topic-usability
#963 opened Oct 22, 2015 by oconnor663
6
Strange behavior when superclass is an unknown argument bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-inheritance Inheritance and incompatible overrides
#1069 opened Dec 11, 2015 by gvanrossum
4
Type check coverage reports need more love bug mypy got something wrong priority-1-normal
#1123 opened Jan 13, 2016 by gvanrossum
5
Property setter not accepted if not next to getter bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-descriptors Properties, class vs. instance attributes
#1465 opened May 2, 2016 by mihneagiurgea
10
Can't pass a value of type Union[str, bytes] to a generic function typed with AnyStr bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-union-types
#1533 opened May 15, 2016 by gvanrossum
2
Return inside class inside function should be an error bug mypy got something wrong priority-2-low topic-runtime-semantics mypy doesn't model runtime semantics correctly
#1683 opened Jun 9, 2016 by gvanrossum
Quoted type name not actually valid as base class bug mypy got something wrong priority-2-low
#1685 opened Jun 9, 2016 by rwbarton
1
Importing unstubbed submodules of stubbed modules with silent imports gives inconsistent errors bug mypy got something wrong needs discussion priority-1-normal topic-usability
#1852 opened Jul 13, 2016 by ddfisher
3
Allow yielding result of function that returns None bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#1933 opened Jul 23, 2016 by gvanrossum
6
When using isinstance to infer a generic type in a block, use any covariant bounds on the type variable. bug mypy got something wrong priority-1-normal topic-type-variables
#1998 opened Aug 8, 2016 by sixolet
2
Cannot infer type of generic subclass within a function call bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-type-variables
#2044 opened Aug 23, 2016 by Michael0x2a
2
defining self.__call__ makes the class callable when it isn't bug mypy got something wrong priority-1-normal topic-runtime-semantics mypy doesn't model runtime semantics correctly
#2113 opened Sep 8, 2016 by euresti
5
mypy reports unexpected errors in the statement "result = list(map(abspath, x))" bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal topic-type-variables
#2389 opened Nov 2, 2016 by eikooo
3
Unexpected "error: Slice index must be an integer or None" bug mypy got something wrong false-positive mypy gave an error on correct code feature needs discussion priority-0-high
#2410 opened Nov 7, 2016 by sametmax
33
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
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