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Issues list

"Statement is unreachable" when doing match on type objects bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code
#18524 opened Jan 24, 2025 by woodruffw
1
Type narrowing broken with dict items bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder
#18440 opened Jan 10, 2025 by xceral
1
4
Can't infer tuple inside match case bug mypy got something wrong topic-match-statement Python 3.10's match statement
#18039 opened Oct 25, 2024 by racinmat
Type is not being narrowed properly in match statement bug mypy got something wrong good-second-issue topic-match-statement Python 3.10's match statement
#17549 opened Jul 20, 2024 by bergkvist
1
3
Simple Literal type narrowing via pattern matching is broken bug mypy got something wrong topic-literal-types topic-match-statement Python 3.10's match statement
#17291 opened May 25, 2024 by willofferfit
1
match narrowing fails when the operand is an await expression bug mypy got something wrong topic-match-statement Python 3.10's match statement
#17230 opened May 9, 2024 by tamird
1
Match exhaustiveness with class inheriting from tuple bug mypy got something wrong topic-match-statement Python 3.10's match statement
#17139 opened Apr 18, 2024 by tobiasBora
1
INTERNAL ERROR on match-case statement bug mypy got something wrong topic-match-statement Python 3.10's match statement
#17134 opened Apr 17, 2024 by randolf-scholz
1
assert_never fails on match-casing enum with only one member bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code
#16922 opened Feb 16, 2024 by otaj
3
Cannot use match case to destructure any object using case object(x=y) bug mypy got something wrong topic-match-statement Python 3.10's match statement
#16912 opened Feb 12, 2024 by RenDelaCruz
4
assert_never on exclusive union of tuples (type narrowing issue?) topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code
#16835 opened Jan 29, 2024 by hjwp
4
match: Incorrect "Incompatible types in capture pattern" when type has already been narrowed bug mypy got something wrong topic-match-statement Python 3.10's match statement
#16736 opened Jan 2, 2024 by JelleZijlstra
1
Exhaustive checks with assert_never when using match on a 2-tuple fails bug mypy got something wrong topic-match-statement Python 3.10's match statement
#16650 opened Dec 12, 2023 by MaxG87
3
Narrowing with "tags" on unions (of TypedDicts or normal classes) doesn't work with the match statement bug mypy got something wrong good-second-issue topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder topic-typed-dict
#16286 opened Oct 18, 2023 by tmke8
1
5
Pattern matching: Type narrowing in sequence pattern not applied in guard bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder
#15949 opened Aug 24, 2023 by arvidfm
Type inference issue with match expression in generic functions bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder topic-type-variables
#15930 opened Aug 22, 2023 by myuanz
[match-case] unreachable raised multiple times instead of once. feature topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code topic-type-ignore # type: ignore comments
#15866 opened Aug 14, 2023 by randolf-scholz
7
Unable to narrow the type of a tagged union when using a match statement bug mypy got something wrong topic-literal-types topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder
#15190 opened May 5, 2023 by jonathan-laurent
2
Non-overlapping equality not detected inside of pattern matching case statements. bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-overlap Overlapping equality check
#14965 opened Mar 27, 2023 by HexDecimal
Type narrowing on object attribute with match statement doesn't apply feature topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder
#14911 opened Mar 16, 2023 by AiroPi
1
Exhaustiveness checking fails on non-trivial use of pattern matching bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code
#14833 opened Mar 4, 2023 by ajasmin
5
capture_pattern binding type mismatches namedtuple type from Union bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-named-tuple
#14501 opened Jan 21, 2023 by enigma
1
False unreachable warning on match statement bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-reachability Detecting unreachable code
#14485 opened Jan 21, 2023 by delfick
2
match-case class checking against collection.abc.Callable raises error [misc] bug mypy got something wrong topic-match-statement Python 3.10's match statement
#14014 opened Nov 5, 2022 by randolf-scholz
2
No narrowing of sequence types after a sequence pattern case in a match statement bug mypy got something wrong topic-match-statement Python 3.10's match statement topic-type-narrowing Conditional type narrowing / binder
#13955 opened Oct 28, 2022 by dmoisset
ProTip! What’s not been updated in a month: updated:<2024-12-25.