Issues

• [tensor-shapes] torch.half dtype alias is missing from torch stubs

  pytorchtensor-shapes
  facebook/pyrefly#5361 · Filter by author asukaminato0721 opened on Oct 24, 2026

• [tensor-shapes] torch.lerp rejects tensor weights and omits their broadcast shape

  pytorchtensor-shapes
  facebook/pyrefly#5360 · Filter by author asukaminato0721 opened on Oct 24, 2026

• [tensor-shapes] torch.empty overloads omit requires_grad

  pytorchtensor-shapes
  facebook/pyrefly#5359 · Filter by author asukaminato0721 opened on Oct 24, 2026

• [tensor-shapes] NumPy mean and sum declare rank-zero ndarrays for scalar results

  tensor-shapes
  facebook/pyrefly#5358 · Filter by author asukaminato0721 opened on Oct 24, 2026

• [tensor-shapes] NumPy scalar constructors reject array inputs that return ndarrays

  tensor-shapes
  facebook/pyrefly#5357 · Filter by author asukaminato0721 opened on Oct 24, 2026

• * is not supported between ndarray[[int], dtype[float32]] and Series[float] [unsupported-operation]

  facebook/pyrefly#5356 · Filter by author asukaminato0721 opened on Oct 24, 2026

• numpy.arange missing overload

  good first issuetensor-shapes
  facebook/pyrefly#5355 · Filter by author asukaminato0721 opened on Oct 24, 2026

• missing torch.compile

  facebook/pyrefly#5354 · Filter by author asukaminato0721 opened on Oct 24, 2026

• - is not supported between float64 and float [unsupported-operation]

  good first issue
  facebook/pyrefly#5353 · Filter by author asukaminato0721 opened on Oct 24, 2026

• No matching overload found for function pandas.core.frame._iLocIndexerFrame.__getitem__ called with arguments: (ndarray)

  dataframe
  facebook/pyrefly#5352 · Filter by author asukaminato0721 opened on Oct 24, 2026

• missing numpy.sqrt

  good first issuetensor-shapes
  facebook/pyrefly#5351 · Filter by author asukaminato0721 opened on Oct 24, 2026

• Argument float64 is not assignable to parameter x with type Buffer | SupportsFloat | SupportsIndex | str in function float.__new__

  facebook/pyrefly#5350 · Filter by author asukaminato0721 opened on Oct 24, 2026

• xs += [...] doesn't use the declared type of xs as context for the right-hand side (but extend does?)

  quansight
  facebook/pyrefly#5345 · Filter by author MarcoGorelli opened on Oct 23, 2026

• Slot narrowing for custom container types

  narrowingtypechecking
  Bug

  facebook/pyrefly#5342 · Filter by author mfish33 opened on Oct 23, 2026
  1

  

• tuple sub-pattern not narrowed after a failed match case

  narrowingquansighttypechecking
  facebook/pyrefly#5340 · Filter by author MarcoGorelli opened on Oct 23, 2026
  1

• Star-only sequence pattern (case [*_]) on a tuple subject doesn't narrow it to Never for later cases (assert_never false positive)

  typechecking
  facebook/pyrefly#5336 · Filter by author john-parton opened on Oct 23, 2026

• Narrowing on a missing attribute narrows it to object instead of Unknown, causing cascading errors

  googlenarrowingneeds-discussiontypechecking
  facebook/pyrefly#5333 · Filter by author QEDady opened on Oct 22, 2026
  1

• Pyrefly leaks generic converter implementation types into attrs __init__ despite an Any overload

  facebook/pyrefly#5331 · Filter by author AdrianSosic opened on Oct 22, 2026

• Hover/SignatureHelp formatting is unreadable for long signatures(pandas.read_csv) due to column alignment and single-line label

  dataframelanguage-servernotebook
  facebook/pyrefly#5328 · Filter by author Hi-MyWorld opened on Oct 22, 2026

• False [uninitialized-instance-variable] error in frozen dataclass

  facebook/pyrefly#5326 · Filter by author Ravencentric opened on Oct 22, 2026

• Django: assigning a query expression (F(), Value()) to a model field is rejected

  django
  facebook/pyrefly#5322 · Filter by author UnknownPlatypus opened on Oct 21, 2026
  

• bug(stubgen): typing / _typeshed imports are emitted above from __future__ import annotations

  good first issuestubgen
  Bug

  facebook/pyrefly#5321 · Filter by author ryanking opened on Oct 21, 2026
  1

• bug(stubgen): annotated self.x: T attributes get the inferred type, often Incomplete

  stubgen
  facebook/pyrefly#5320 · Filter by author ryanking opened on Oct 21, 2026

• bug(stubgen): synthesized Pydantic __init__ uses lax-mode types (LaxStr, Decimal | ...) and Incomplete

  pydanticstubgen
  facebook/pyrefly#5319 · Filter by author ryanking opened on Oct 21, 2026

• bug(stubgen): names used only in inferred types are not imported

  stubgen
  facebook/pyrefly#5318 · Filter by author ryanking opened on Oct 21, 2026