[v1.5 regression] Unknown-length *args treated as an extra argument

Reported impact: 51 false-positive diagnostics across 17 repositories, out of 352 repositories checked for v1.5 regression testing.

This succeeds under mypy, pyright, and ty. Pyrefly at head errors on it:

def no_args() -> int:
    return 0

def forward(xs: list[int]) -> None:
    no_args(*xs)  # Expected 0 positional arguments, got 1

forward([])

No response

#claim

@GautamKumarOffical

@GautamKumarOffical you've claimed this issue — it's now assigned to you. Thanks for picking it up! 🎉

Fix false-positive extra argument error for unknown-length *args with…

Navigation Menu