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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

Type narrowing fails for union of iterable and dictionary when using isinstance(x, Iterable) in a conditional bug mypy got something wrong topic-type-narrowing Conditional type narrowing / binder
#13709 opened Sep 22, 2022 by zigaLuksic
🎉 2
Proposal: treat "obvious" return type as annotated feature topic-inference When to infer types or require explicit annotations
#4409 opened Dec 25, 2017 by elazarg
46 🎉 1
Adding bound= to a TypeVar prevents Protocol typechecking bug mypy got something wrong
#16125 opened Sep 16, 2023 by leontrolski
6 🎉 1
Exit status when config error bug mypy got something wrong topic-configuration Configuration files and flags
#15850 opened Aug 11, 2023 by Dreamsorcerer
1
🎉 1
Let "Literal" accept another Literal type variable feature topic-literal-types
#10026 opened Feb 4, 2021 by xuhdev
5 🎉 1
Value of type "Type[type]" is not indexable error inside reveal_type(type[type]) bug mypy got something wrong false-positive mypy gave an error on correct code topic-pep-585 PEP 585 (builtin generics)
#13026 opened Jun 26, 2022 by denballakh
3 🎉 1
Meta issue tracker, pt 2 meta Issues tracking a broad area of work
#16472 opened Nov 12, 2023 by hauntsaninja
1 🎉 1
TYPE_CHECKING in ternary expression documentation topic-ternary-expression a if b else c
#15856 opened Aug 11, 2023 by igoose1
🎉 1
Allow Annotated to wrap Final and ClassVar bug mypy got something wrong topic-final PEP 591
#12061 opened Jan 25, 2022 by GBeauregard
3 🎉 1
Disallow access to instance variable via class needs discussion priority-2-low
#240 opened Jul 15, 2013 by JukkaL
5
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
Support @no_type_check for classes false-positive mypy gave an error on correct code feature priority-1-normal topic-pep-484 topic-runtime-semantics mypy doesn't model runtime semantics correctly
#607 opened Mar 21, 2015 by JukkaL
2
7
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 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
Don't use XSLT in report generator priority-1-normal refactoring Changing mypy's internals
#909 opened Oct 11, 2015 by JukkaL
18
Document the HTML/XML report generator documentation priority-1-normal
#912 opened Oct 12, 2015 by JukkaL
4
Figure out story about diamond inheritance feature priority-1-normal
#1065 opened Dec 11, 2015 by gnprice
14
Reject assignments when __setattr__ has NoReturn return type feature priority-1-normal
#1052 opened Dec 5, 2015 by JukkaL
Support both warnings and errors feature priority-2-low topic-error-reporting How we report errors
#962 opened Oct 22, 2015 by JukkaL
4
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
Complaint about @staticmethod outside a class false-positive mypy gave an error on correct code feature priority-2-low
#1006 opened Nov 25, 2015 by gvanrossum
3
Infer attributes from __new__ false-positive mypy gave an error on correct code feature priority-0-high
#1021 opened Nov 29, 2015 by JukkaL
17
ternary operator for side-effect with max bug mypy got something wrong
#17803 opened Sep 21, 2024 by serjflint
ProTip! Exclude everything labeled bug with -label:bug.