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False positive when dict with literal keys unpacked as function args

3

**Describe the bug** If a dictionary annotated with literal keys is passed to a function with matching string arguments, if there are other defaulted arguments of a different type there...

alwaysmpe

Relax reportSelfClsParameterName to allow mcs , mcls, and metacls when inheriting from type.

1

When implementing metaclasses, it is relatively commonplace in methods such as `__new__` and `@classmethod`'s such as `__prepare__` to name the first positional argument `mcs`, `mcls` or `metacls`. This has a...

DylanLukes

Bad signature when using `Unpack` with empty `TypedDict`

1

Really minor issue: Code sample in [pyright playground](https://pyright-play.net/?reportMissingModuleSource=true&code=GYJw9gtgBALgngBwJYDsDmUkQWEMoCqKCAhgMYDWANFACqICmAJgCJJkwBQ3ZANiQGcBUAKLZ4ACnoJmbDjRhgYJXgF4AYioEMAlAC5OUI1FJDuTBsCjAArijISAVI4oB3EiDQC9hYuQoA2mII8AC6%2BiaCAtyctvYSOpxAA) ```python from typing import Unpack, TypedDict class Empty(TypedDict, total=False): pass def func(**kwargs: Unpack[Empty]): pass func() ``` Produces:  maybe `() -> None`...

Viicos

TypeIs does not narrow type in some cases

1

**Describe the bug** Not sure how wide this bug is, but my `Sentinel` type used to negate types fine in experimental StrictTypeGuard back on 347. On 375 I'm assuming that...

irgolic

For the following code, pyright 1.1.373 correctly reports an incompatibility with the base class `A` when overriding the method `f` in the child class `B`: ```python class A: def f(self,...

LeeeeT

is_dataclass always evaluates to false with TypeVars

1

`dataclasses.is_dataclass` seems to always evaluate to false for generic types. Environment data - Language Server version: 2024.8.1 - OS and version: darwin arm64 - Python version (and distribution if applicable,...

peku33

Pyright 1.1.375 hangs on file with overloaded functions using Python 3.12 (PEP 695) generics

1

**Describe the bug** Pyright is having issues parsing the overloaded functions with generic type arguments shown below. Analyzing with `pyright test.py` using Pyright 1.1.373 works fine, however Pyright 1.1.375 hangs....

Antyos

@lru_cache interferes with @overload'ed definitions

2

This is a simplified version of what's seen in stdlib `urllib.parse`. Code sample in [pyright playground](https://pyright-play.net/?code=MQAgDgngTglg5gCwC4C4DOTYGMkCgYC2YA9lEiAGYCuAdjscQDZq4VTEEhIRgw1whCJMiACCNCAGVMAGhAA5AIYEApgBMAKlTCMVcxWjQqyAfW5g9IYgDdjjYorW5nWRgbQhJOmEgBKKtCpGJAAKJVVNbV0AShRcEATwd2dcV3dPbz8AoKQAIQgkALDldS0dFVj4xLBk5wABGzsHJzUVChAqKGZMkM7GFBAMKGiQAFoAPgzGH39A4IGAOiXcBtsu5txW9r60Hr6BgCMCgJGJqZns4PzCtEXluuo6JAZmBcYoKhMsRSwEFRDzOoALwaD4VTZtDpdXbTUL7MQSaTDMaTLyw2Y5EAAH3OWTmeWOtyqCRg7RgaD4GEUdH%2BfTkQ0qiSZICgKiQnRouIxwRC0WJIBUzBUcWZiVZ7KgnLRF3x1yKfOcAA8QECod1YSEAETEBCKGCavnuYxIMw8f6KuTSvE5aJAA) ```python # pyright:strict import functools from typing import AnyStr, NamedTuple, assert_type, overload class SplitResult(NamedTuple):...

bukzor

typing.Literal with tuple argument not understood

3

## Environment data - VSCode version: 1.91.1 - Pylance version: 2024.8.1 - OS and version: Windows 11, Version 10.0.22631 - Python version: CPython 3.10.9, VSCode extension 2024.12.2 ## Code Snippet...

dcnieho

type error on `map`

1

## Environment data - Pylance version: v2024.8.1 - OS and version: win11 - Python version (& distribution if applicable, e.g. Anaconda): 3.11.4 ## Code Snippet ```python a: list[int | None]...

uf-fipper