Issues

• Boolean literal scrutinee not narrowed by literal patterns in match

  bugtopic-literal-typestopic-match-statement
  python/mypy#22202 · Filter by author rolyp opened on Oct 14, 2026

• mypy cannot decide if a cast is necessary or redundant

  bugtopic-inferencetopic-literal-types
  python/mypy#21607 · Filter by author clo-vis opened on Jun 11, 2026
  2

• TypedDict does not treat union of string literals as a string literal

  bugtopic-literal-typestopic-typed-dict
  python/mypy#20235 · Filter by author injust opened on Nov 14, 2025
  1

• match-case does not work correctly with Literals vs Enums

  bugtopic-enumtopic-literal-typestopic-match-statement
  python/mypy#20142 · Filter by author randolf-scholz opened on Oct 29, 2025
  3

• Literal["..."]s incorrectly assignable to protocol with __getitem__(slice) -> Self

  bugtopic-literal-typestopic-protocols
  python/mypy#20058 · Filter by author decorator-factory opened on Oct 13, 2025

• incorrect inferred type accessing typed dict with static keys

  bugtopic-inferencetopic-literal-typestopic-typed-dict
  python/mypy#19961 · Filter by author yabirgb opened on Oct 1, 2025
  1

• allow-redefinition-new for enum results in incompatible type of Literal[members]

  bugtopic-enumtopic-inferencetopic-literal-types
  python/mypy#19894 · Filter by author eli-schwartz opened on Sep 21, 2025
  2

• Final (context-sensitive Literal) doesn't support type narrowing

  bugtopic-finaltopic-literal-typestopic-type-narrowing
  python/mypy#19814 · Filter by author Dreamsorcerer opened on Sep 9, 2025

• MyIntEnum.ONE should be passable to functions expecting Literal[1] arguments

  bugneeds discussiontopic-enumtopic-literal-types
  python/mypy#19616 · Filter by author ambv opened on Aug 8, 2025
  2

• comparison-overlap triggers for string enum members when the member name isn't the same as the comparison value

  bugfalse-positivetopic-enumtopic-literal-typestopic-overlap
  python/mypy#19576 · Filter by author bzoracler opened on Aug 3, 2025
  3

• Keep Literal after indexing?

  featuretopic-literal-typestopic-type-context
  python/mypy#19152 · Filter by author ego-thales opened on May 26, 2025
  6

• Add support for literal addition

  topic-literal-types
  Unread
  python/mypy#18004·cdce8p opened Oct 21, 2024 · Updated Dec 14, 2025
  28

• False negative: typing.Literal[<Union expression>]

  bugsemantic-analyzertopic-literal-typestopic-runtime-semantics
  python/mypy#17260 · Filter by author bzoracler opened on May 17, 2024
  3

• --strict-equality flag not working with membership operator and Literal types

  featuretopic-literal-typestopic-overlap
  python/mypy#17062 · Filter by author mflova opened on Mar 24, 2024

• Type Narrowing: if val == Literal should always narrow to Literal

  featuretopic-literal-typestopic-type-narrowing
  python/mypy#16819 · Filter by author CarliJoy opened on Jan 25, 2024
  3

• Eager narrowing to Literal when possible

  featuretopic-literal-typestopic-type-narrowing
  python/mypy#15434 · Filter by author harahu opened on Jun 14, 2023
  2

• (🐞) overloads that exhaust finite Literals(bool/Enum) not treated as exhaustive

  bugtopic-literal-typestopic-overloads
  python/mypy#14764 · Filter by author KotlinIsland opened on Feb 22, 2023
  14

• Recognize list of constant values as a list of str.

  featuretopic-literal-types
  python/mypy#13767 · Filter by author elda27 opened on Sep 29, 2022
  2

• Narrowing types to Literal using in syntax

  featuretopic-literal-typestopic-type-narrowing
  python/mypy#12535 · Filter by author tusharsadhwani opened on Apr 6, 2022
  6

• Literal type math

  featuretopic-literal-types
  python/mypy#11990 · Filter by author sobolevn opened on Jan 13, 2022
  11

• Incompatible signature error when there are overloads that split a Literal union in a subclass

  bugtopic-inheritancetopic-literal-typestopic-overloads
  python/mypy#11762 · Filter by author BergLucas opened on Dec 16, 2021

• Non overlapping inclusion check for literal types

  featuretopic-literal-typestopic-overlap
  python/mypy#11313 · Filter by author sami-evangelista opened on Oct 11, 2021
  4

• Inference for Literal arguments not handled

  bugtopic-literal-types
  python/mypy#11003 · Filter by author Dr-Irv opened on Aug 20, 2021
  6

• Let "Literal" accept another Literal type variable

  featuretopic-literal-types
  python/mypy#10026 · Filter by author xuhdev opened on Feb 4, 2021
  6

• List[Literal[...]] type being narrowed where it shouldn't be

  bugtopic-literal-typestopic-type-narrowing
  python/mypy#9850 · Filter by author tusharsadhwani opened on Dec 29, 2020
  2