4 Pull requests merged by 2 people

• Use dedicated tags for most common instances

  #19762 merged Sep 1, 2025

• [mypyc] Speed up unary "not"

  #19774 merged Sep 1, 2025

• [mypyc] Fix C function signature

  #19773 merged Sep 1, 2025

• Mypy micro-optimizations (batch 3/3)

  #19770 merged Sep 1, 2025

5 Pull requests opened by 3 people

• Add await to empty context hack

  #19777 opened Sep 1, 2025

• Sync variance of typing classes in fixtures with typeshed

  #19778 opened Sep 1, 2025

• Consider non-empty enums assignable to Self

  #19779 opened Sep 1, 2025

• fix: Allow instantiation of type[None] in analyze_type_type_callee

  #19782 opened Sep 2, 2025

• [mypyc] Allow defining a single-item free "list" for a native class

  #19785 opened Sep 2, 2025

4 Issues closed by 2 people

• mypy-lang.org roadmap link is dead

  #19784 closed Sep 2, 2025

• Async generators are detected as synchronous generators erroneously

  #17482 closed Sep 2, 2025

• Overload + generic functions + union arguments = inconsistent results (wrong overload is matched?)

  #18321 closed Sep 2, 2025

• Not identifying None check on multiple values using "any" or "all"

  #19775 closed Sep 1, 2025

2 Issues opened by 2 people

• `comparision-overlap` ignores side-effects from member function calls

  #19783 opened Sep 2, 2025

• Faster parser

  #19776 opened Sep 1, 2025

18 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.

• feat: new mypyc primitives for weakref.proxy

  #19217 commented on Sep 1, 2025 • 3 new comments

• Stubtest: check `_value_` for ellipsis-valued stub enum members

  #19760 commented on Sep 1, 2025 • 1 new comment

• [PEP 695] Fix incorrect Variance Computation with Polymorphic Methods.

  #19466 commented on Sep 2, 2025 • 0 new comments

• Support name mangling

  #16715 commented on Sep 1, 2025 • 0 new comments

• Crash on diverging recursive generic protocols

  #17326 commented on Sep 2, 2025 • 0 new comments

• Cannot instantiate type "Type[None]"

  #19660 commented on Sep 2, 2025 • 0 new comments

• AssertionError: Must not defer during final iteration

  #17716 commented on Sep 2, 2025 • 0 new comments

• Passing self to a generic function that accepts Self

  #17723 commented on Sep 2, 2025 • 0 new comments

• Mypy should allow for Self in parametrized parent class definition — issues with contextlib.AbstractContextManager

  #17758 commented on Sep 2, 2025 • 0 new comments

• Mypyc: Crash when using property deleter

  #17928 commented on Sep 2, 2025 • 0 new comments

• a pretty bad bug report about a segfault, but at least I can show you the repo

  #18195 commented on Sep 2, 2025 • 0 new comments

• [regression] no type checking beyond perceived isinstance guard failure

  #18329 commented on Sep 2, 2025 • 0 new comments

• type of variable not narrowed after `continue` statement inside `try`/`except` block inside a for loop inside a function

  #18466 commented on Sep 2, 2025 • 0 new comments

• generic is incorrectly inferred as invariant if class uses `Self` type on an attribute

  #18334 commented on Sep 2, 2025 • 0 new comments

• Unable to use `typing.Self` with `Enum`s

  #18345 commented on Sep 1, 2025 • 0 new comments

• MyPy infers descriptors are always ClassVars when testing assignability to protocols

  #19702 commented on Sep 1, 2025 • 0 new comments

• Incorrect argument names for dataclass with "private" (mangled) members

  #19755 commented on Sep 1, 2025 • 0 new comments

• `dataclass_transform` decorator not detected when using alias

  #19731 commented on Sep 1, 2025 • 0 new comments