Overview

6 Pull requests merged by5 people

• Forbid.pop ofReadonlyNotRequired TypedDict items

  #19133 mergedMay 23, 2025

• stubgen: add import for types in __exit__ method signature

  #19120 mergedMay 21, 2025

• syntax error messages capitalization

  #19114 mergedMay 20, 2025

• stubgenc: add support for including class and property docstrings

  #17964 mergedMay 20, 2025

• Emit a friendlier warning on invalid exclude regex, instead of a stacktrace

  #19102 mergedMay 19, 2025

• Support several more constructs in stubgen's AliasPrinter

  #18888 mergedMay 19, 2025

16 Pull requests opened by12 people

• feat: mypyc weakref_ops.py

  #19099 openedMay 16, 2025

• Include tuple fallback in constraints built from tuple types

  #19100 openedMay 17, 2025

• Split import-untyped into import-untyped and import-untyped-stubs-available

  #19101 openedMay 17, 2025

• Mention in the Any documentation how object is preferable

  #19103 openedMay 17, 2025

• Fix/attrs init overload

  #19104 openedMay 18, 2025

• Use normalized tuples for fallback calculation

  #19111 openedMay 19, 2025

• Display FQN for imported base classes in errors about incompatible ov…

  #19115 openedMay 19, 2025

• Bump setuptools from 75.8.0 to 78.1.1

  #19116 openedMay 19, 2025

• Avoid false `unreachable` and `redundant-expr` warnings in loops more robustly and efficiently, and avoid multiple `revealed type` notes for the same line.

  #19118 openedMay 20, 2025

• enable --pretty by default

  #19122 openedMay 21, 2025

• Fix example to use correct method of Stack

  #19123 openedMay 21, 2025

• [WIP] Enhance check_for_missing_annotations for None return type, giving unannotated arg name in err msg

  #19125 openedMay 21, 2025

• [mypyc] Refactor extension module C generation and generated C

  #19126 openedMay 21, 2025

• [mypyc] Fix incref/decref on free-threaded builds

  #19127 openedMay 21, 2025

• Add config key to extend config files

  #19135 openedMay 23, 2025

• Add changelog for 1.16

  #19138 openedMay 23, 2025

11 Issues closed by7 people

• Mypy fails on external libraries

  #19131 closedMay 23, 2025

• Mypy treats the overload object as an implementation of an abstract method

  #19137 closedMay 23, 2025

• False negative: popping a ReadOnly key from a TypedDict

  #19130 closedMay 23, 2025

• Mypy doesn't catch renaming arguments in overrides

  #19132 closedMay 22, 2025

• Stubgen generates reference to `types.TracebackType` without importing `types`

  #17037 closedMay 21, 2025

• Ensure syntax error messages are capitalized

  #19107 closedMay 20, 2025

• @cache breaks type checking when used with @classmethod and typing.Self

  #19117 closedMay 20, 2025

• False narrowing with repeated assignment inside if resulting in bad false negative

  #18492 closedMay 19, 2025

• Stubgen crashes on dataclass field

  #18886 closedMay 19, 2025

• Return type of unbound methods of generic types incorrectly inferred.

  #13835 closedMay 19, 2025

• Editable install fails with ImportError (unknown location) on Windows 10 outside of venv

  #19089 closedMay 17, 2025

15 Issues opened by11 people

• Unexpected failure of union type to unify with generic type with value restriction

  #19141 openedMay 23, 2025

• Unpack generic tuple with no args not working

  #19140 openedMay 23, 2025

• Regression in 1.16 on DataclassInstance?

  #19139 openedMay 23, 2025

• mypy not raising error on inexhaustive case/match statements in strict mode

  #19136 openedMay 23, 2025

• Conditionally excluding backward incompatible syntax based on python version

  #19134 openedMay 22, 2025

• MYPYPATH directory used even if no __init__.py

  #19129 openedMay 22, 2025

• "An implementation for an overloaded function is not allowed in a stub file" for overloaded type hint

  #19128 openedMay 21, 2025

• Preliminary test on type not detected, leading to false error

  #19124 openedMay 21, 2025

• Nondeterministic type checking on pytorch/vision

  #19121 openedMay 20, 2025

• Show more context about the base class on incompatible override

  #19112 openedMay 19, 2025

• Empty variadic `tuple` subtype not assignable to `tuple[int, ...]`

  #19110 openedMay 18, 2025

• `tuple[Any, *tuple[Any, ...]]` is not assignable to other tuple types

  #19109 openedMay 18, 2025

• Enable --pretty by default

  #19108 openedMay 18, 2025

• incorrect inference of user-defined variadic tuple subtype instances

  #19106 openedMay 18, 2025

• `class S(tuple[*tuple[()]])` crashes mypy

  #19105 openedMay 18, 2025

29 Unresolved conversations

Sometimes conversations happen on old items that aren’t yet closed. Here is a list of all the Issues and Pull Requests with unresolved conversations.

• Narrow literals in the negative case even with custom equality

  #18574 commented onMay 22, 2025 • 2 new comments

• feat(mypyc): proper weakref support

  #19056 commented onMay 16, 2025 • 1 new comment

• Add support for Pydantic models in `stubgen`

  #19095 commented onMay 20, 2025 • 0 new comments

• Remove last unreachable block from mypyc code

  #19086 commented onMay 17, 2025 • 0 new comments

• feat(test): Failure test case for mypyc dictionary subclass views

  #19076 commented onMay 17, 2025 • 0 new comments

• Add warn-unreachable to strict mode

  #19047 commented onMay 17, 2025 • 0 new comments

• Use checkmember.py to check protocol subtyping

  #18943 commented onMay 19, 2025 • 0 new comments

• Sync typeshed

  #18930 commented onMay 19, 2025 • 0 new comments

• Add support for literal addition

  #18004 commented onMay 19, 2025 • 0 new comments

• Support narrowing literals and enums using the in operator in combination with list, set, and tuple expressions.

  #17044 commented onMay 23, 2025 • 0 new comments

• 1.16 Release Planning

  #18739 commented onMay 23, 2025 • 0 new comments

• (🐞) `overload`s that exhaust finite `Literal`s(`bool`/`Enum`) not treated as exhaustive

  #14764 commented onMay 23, 2025 • 0 new comments

• stubgen: mangles from _typeshed import Incomplete

  #16658 commented onMay 22, 2025 • 0 new comments

• MyPy 0.750 slow startup (or hang) on macOS

  #8055 commented onMay 22, 2025 • 0 new comments

• Optional error code to flag missing return type when an argument has an annotation

  #15127 commented onMay 20, 2025 • 0 new comments

• Type narrowing for tuple worse with match than with the equivalent instanceof check

  #19082 commented onMay 20, 2025 • 0 new comments

• `issubclass()` assertions not narrowing types

  #10680 commented onMay 20, 2025 • 0 new comments

• Wrong type inference with "yield from" from an Iterator class

  #17449 commented onMay 19, 2025 • 0 new comments

• Use case for typing.Type with abstract types

  #4717 commented onMay 19, 2025 • 0 new comments

• Failed to find exact letter case of module name when relative import on Windows OS

  #18445 commented onMay 19, 2025 • 0 new comments

• errors in other files are reported when running mypy on a file with lowercase drive letter

  #18590 commented onMay 19, 2025 • 0 new comments

• Argument 1 to `type_check_only` has incompatible type `type[S[T, *Ts]]`; expected `type[S[T, *Ts]]`

  #19093 commented onMay 19, 2025 • 0 new comments

• Overloaded `__init__` prevents type from being recognized as an attrs class

  #19003 commented onMay 18, 2025 • 0 new comments

• Support file-level assertions as inline configuration

  #19013 commented onMay 17, 2025 • 0 new comments

• Fails to flag `None` passed to constructor of `enum.Enum`-based classes

  #19094 commented onMay 17, 2025 • 0 new comments

• `--exclude` regular expression leading "/" does not match in current directory

  #19012 commented onMay 17, 2025 • 0 new comments

• Odd error message for invalid use of tuple(): expected "Iterable[Never]"

  #19098 commented onMay 17, 2025 • 0 new comments

• Consider merging command line flags and configuration file options descriptions

  #12347 commented onMay 17, 2025 • 0 new comments

• Limited inference with union of callables and assignment to a union

  #18191 commented onMay 17, 2025 • 0 new comments