1 Release published by 1 person

• 0.20.0 v0.20.0

  published Jun 16, 2025

5 Pull requests opened by 5 people

• Add fallback alias resolution for pandas.DataFrame via trace_alias_chain

  #478 opened Jun 13, 2025

• Add CLI flag to override typeshed

  #488 opened Jun 14, 2025

• Treat .pyc imports as typing.Any when no stubs can be found

  #512 opened Jun 17, 2025

• Set help headings on `pyrefly check` options #473

  #520 opened Jun 18, 2025

• Store `reveal_type` and other errors separately in `CollectedErrors`

  #525 opened Jun 18, 2025

32 Issues closed by 8 people

• Pylance parity - color coding recognized imports

  #271 closed Jun 18, 2025

• Slow processing of certain files

  #519 closed Jun 18, 2025

• Panic `byte index 4 is not a char boundary`

  #517 closed Jun 18, 2025

• Panic `Internal error: key not found, module `__unknown__``

  #518 closed Jun 18, 2025

• [feature] ban TypedDict special form outside of base class list

  #468 closed Jun 18, 2025

• pandas-stubs: Expected a type form, got instance of `UnionType` [not-a-type]

  #434 closed Jun 18, 2025

• Ellipsis error when using starlette

  #313 closed Jun 17, 2025

• Cargo.lock uncommited

  #432 closed Jun 17, 2025

• Panic `attempt to subtract with overflow` in `pyrefly/lib/alt/expr.rs`

  #502 closed Jun 17, 2025

• [Bug][IDE]: pyrefly vscode ignores search_path in pyproject.toml

  #160 closed Jun 17, 2025

• Unparseable configs should error immediately

  #457 closed Jun 17, 2025

• Panic `byte index 2 is not a char boundary` inside ruff module

  #501 closed Jun 17, 2025

• `pyrefly check` crashes with "key not found"

  #490 closed Jun 17, 2025

• Create other issue templates

  #475 closed Jun 17, 2025

• Add CLI flag for `untyped-def-behavior`

  #463 closed Jun 17, 2025

• Cannot wrap a generic function

  #505 closed Jun 17, 2025

• Excessive memory usage

  #479 closed Jun 17, 2025

• Non-ReadOnly TypedDict fields should behave invariantly in subtyping

  #333 closed Jun 16, 2025

• special-case get and set for TypedDict

  #49 closed Jun 16, 2025

• Override check involving ParamSpec is incorrect

  #330 closed Jun 16, 2025

• Using reveal_type changes the behavior of typechecking function definitions

  #228 closed Jun 16, 2025

• Unannotated lambda behaves more strictly than annotated function

  #146 closed Jun 16, 2025

• Support invoking other classmethods within classmethods whose `cls` param is annotated to be `type[T]`

  #109 closed Jun 16, 2025

• [feature] InitVars should not count as dataclass fields

  #409 closed Jun 16, 2025

• Add CLI flag for `ignore-errors-in-generated-code`

  #464 closed Jun 16, 2025

• [feature] ban TypedDicts in isinstance and issubclass checks

  #469 closed Jun 16, 2025

• Panic on invalid assignment expression

  #452 closed Jun 14, 2025

• Add CLI flag for `replace-imports-with-any`

  #462 closed Jun 13, 2025

• Add CLI flag for `ignore-missing-source`

  #460 closed Jun 13, 2025

• project_includes and project_excludes are not respected in pyproject.toml

  #404 closed Jun 13, 2025

• [Feature] show source context for error messages

  #378 closed Jun 12, 2025

• Panic when parsing BigInt literal with underscore prefix

  #453 closed Jun 12, 2025

34 Issues opened by 12 people

• `type[tuple[Any, ...]]` should be considered callable

  #530 opened Jun 18, 2025

• as_call_target doesn't work on unions

  #529 opened Jun 18, 2025

• "inconsistent types when breaking cycles" error on loop

  #528 opened Jun 18, 2025

• Forward reference doesn't work in implicit alias of `Callable`

  #527 opened Jun 18, 2025

• `and` of `isinstance(x, ...)` calls causes `x` to be narrowed to the type in the last call?

  #526 opened Jun 18, 2025

• Warn on unbound type vars in annotated variable assignments

  #524 opened Jun 18, 2025

• Panic `attempt to subtract with overflow` in `crates/ruff_annotate_snippets/src/renderer/margin.rs`

  #523 opened Jun 18, 2025

• [unclear message] ClassVar initialized on __new__ method

  #522 opened Jun 18, 2025

• [feature] include a reason for why a field is read-only

  #521 opened Jun 18, 2025

• Random `Stack overflows`, `Stack use after return` and other crashes, when checking specific files with pyrefly compiled with Address Sanitizer

  #516 opened Jun 18, 2025

• [feature] skip return type check & allow docstring or `...` function bodies for abstract methods

  #515 opened Jun 18, 2025

• Generically returning `Self` doesn't work

  #514 opened Jun 18, 2025

• `Enum[some_string]` is a type error

  #513 opened Jun 18, 2025

• Error when defining `@final` classes that have unimplemented abstract methods

  #511 opened Jun 17, 2025

• Error when instantiating classes that have unimplemented abstract methods

  #510 opened Jun 17, 2025

• Panic `Name '__all__' not found in static scope of module '__unknown__'`

  #509 opened Jun 17, 2025

• Indirect wrapping with ParamSpec fails to infer correctly

  #507 opened Jun 17, 2025

• Error summary line counts `reveal_type` as an error

  #506 opened Jun 17, 2025

• Stack overflow in `lib/alt/expr.rs` / `lib/alt/operators.rs`

  #504 opened Jun 17, 2025

• Feature request: allow checking snippets, equivalent to `mypy -c`

  #503 opened Jun 17, 2025

• [PEP695] Generic scoping not working

  #500 opened Jun 16, 2025

• Variance of type parameters sometimes inferred incorrectly

  #498 opened Jun 16, 2025

• No matching overload for map.__new__ when first param is generic function

  #497 opened Jun 16, 2025

• [feature] command for measuring type annotation coverage

  #496 opened Jun 16, 2025

• [feature] validate that dataclass `__postinit__` signature matches signature of generated `__init__`

  #495 opened Jun 16, 2025

• [feature] handle dataclass `field(kw_only=False)`

  #494 opened Jun 16, 2025

• [feature] dataclass kw_only field ordering in constructors

  #493 opened Jun 16, 2025

• [feature] error when dataclass field without default follows dataclass field with default

  #492 opened Jun 16, 2025

• [pyrefly] special case handling for `functools.total_ordering` decorator

  #491 opened Jun 16, 2025

• Overload evaluation pins type of arguments too early

  #487 opened Jun 14, 2025

• Add CLI flag to override typeshed

  #483 opened Jun 13, 2025

• [feature] TypedDict base class list should only allow the keyword "total"

  #476 opened Jun 13, 2025

• Deny missing docs for args

  #474 opened Jun 12, 2025

• Set help headings on `pyrefly check` options

  #473 opened Jun 12, 2025

30 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.

• IDE integration tracker

  #302 commented on Jun 12, 2025 • 0 new comments

• Flags for all `ConfigFile` options

  #458 commented on Jun 12, 2025 • 0 new comments

• Pyrefly can't handle `attrs` library (dataclass_transform)

  #334 commented on Jun 13, 2025 • 0 new comments

• [IDE] Support auto import

  #239 commented on Jun 15, 2025 • 0 new comments

• Panic when starred assignment target is used with augmented assignment operator

  #454 commented on Jun 16, 2025 • 0 new comments

• Add CLI flag for `errors`

  #461 commented on Jun 16, 2025 • 0 new comments

• Key-already-exists panic when checking nested comprehensions that are incomplete

  #455 commented on Jun 16, 2025 • 0 new comments

• Infer input type of lambda based on 2nd argument to map()

  #438 commented on Jun 16, 2025 • 0 new comments

• [Bug][CLI]: Wrong inference (incorrect narrowing?)

  #162 commented on Jun 16, 2025 • 0 new comments

• [cli] Separate lines of source code checked & lines of dependencies checked in summary

  #241 commented on Jun 16, 2025 • 0 new comments

• Incorrect understanding of `global` in inner function

  #265 commented on Jun 16, 2025 • 0 new comments

• Subclass checks on a typevar do not correctly specialize

  #235 commented on Jun 16, 2025 • 0 new comments

• Error installing from source

  #217 commented on Jun 16, 2025 • 0 new comments

• pyrefly gets really slow when run in environment with a lot of dependencies

  #360 commented on Jun 16, 2025 • 0 new comments

• Pyrefly Cannot Correctly Figure Out Dependencies in Non-VSCode Editors

  #356 commented on Jun 16, 2025 • 0 new comments

• [feature] more permissive`type: ignore` parsing

  #448 commented on Jun 16, 2025 • 0 new comments

• `super()` object should not allow attribute assignment

  #251 commented on Jun 17, 2025 • 0 new comments

• Support LSP `$/progress` messages

  #422 commented on Jun 17, 2025 • 0 new comments

• [feature] error when NamedTuple field without a default appears after any NamedTuple field with default

  #410 commented on Jun 17, 2025 • 0 new comments

• Incorrect error from np.ndarray /= float32

  #339 commented on Jun 17, 2025 • 0 new comments

• Pyrefly doesn't know how to deal with attributes in argparse.Namespace

  #346 commented on Jun 17, 2025 • 0 new comments

• Treat `.pyc` imports as `typing.Any` when no stubs can be found

  #456 commented on Jun 17, 2025 • 0 new comments

• Support `__class_getitem__`

  #256 commented on Jun 17, 2025 • 0 new comments

• Incorrect type error for Mapped[...] SQLAlchemy 2.0 attributes used in instance methods

  #445 commented on Jun 17, 2025 • 0 new comments

• [feature] Support Abstract Classes/Methods

  #46 commented on Jun 18, 2025 • 0 new comments

• Could you register this package in Homebrew, the macOS/Linux package manager?

  #428 commented on Jun 18, 2025 • 0 new comments

• Support semantic syntax highlighting

  #218 commented on Jun 18, 2025 • 0 new comments

• IDE Feature Tracker

  #344 commented on Jun 18, 2025 • 0 new comments

• Bad error messages from blog post

  #225 commented on Jun 18, 2025 • 0 new comments

• Pandas imports

  #366 commented on Jun 19, 2025 • 0 new comments