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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

Unions with invalid arguments are still allowed bug mypy got something wrong topic-runtime-semantics mypy doesn't model runtime semantics correctly
#3258 opened Apr 26, 2017 by refi64
1
join is not associative in the presence of unions bug mypy got something wrong topic-join-v-union Using join vs. using unions topic-strict-optional
#3339 opened May 7, 2017 by ilevkivskyi
3
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
from .x import y causes "Name already defined" for x bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#3735 opened Jul 18, 2017 by douglas-treadwell
3
Overloading function issues (incompatible with supertype). bug mypy got something wrong priority-1-normal topic-overloads topic-usability
#3750 opened Jul 20, 2017 by cynecx
3
Inferred Union subtype changed inconistently after a failed operation bug mypy got something wrong topic-union-types
#3122 opened Apr 3, 2017 by pkch
3
Join of actual Class with Type[Class] results in object bug mypy got something wrong priority-1-normal
#3976 opened Sep 21, 2017 by carljm
1
stubgen considers some assignments as type alias which aren't bug mypy got something wrong priority-2-low topic-stubgen
#3983 opened Sep 22, 2017 by dmoisset
Invalid type inferred for call with *args and generic inheritance bug mypy got something wrong priority-1-normal topic-type-variables
#3955 opened Sep 14, 2017 by JukkaL
2
Incorrect inference of type parameter for a generic container bug mypy got something wrong
#3183 opened Apr 18, 2017 by pkch
2
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
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
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
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
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
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
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
Using a partial type assumes partial knowledge bug mypy got something wrong priority-1-normal
#4088 opened Oct 10, 2017 by gvanrossum
3
Failure to resolve a specific import structure bug mypy got something wrong priority-2-low topic-import-cycles
#4144 opened Oct 20, 2017 by elprans
5
Improve truncation logic for Protocol mismatches bug mypy got something wrong topic-error-reporting How we report errors
#16332 opened Oct 26, 2023 by hauntsaninja
1
Apparent false positive when using reduce with dictionaries bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#4150 opened Oct 23, 2017 by edwardcwang
3
Adding variable annotation causes incompatible type when Optional and TypeVars are used bug mypy got something wrong false-positive mypy gave an error on correct code priority-1-normal
#4554 opened Feb 8, 2018 by euresti
1
ProTip! Exclude everything labeled bug with -label:bug.