New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

(🎁) narrow falsey string to `Literal[""]` #16891

Closed

KotlinIsland opened this issue Feb 7, 2024 · 0 comments · Fixed by #17818

Labels

feature

Contributor

KotlinIsland commented Feb 7, 2024

from typing import Literal

def f() -> Literal[""]:
    a = ""
    return a and exit()  # error: Incompatible return value type (got "str", expected "Literal['']")  [return-value]

KotlinIsland added the feature label

brianschubert mentioned this issue

Narrow falsey str/bytes/int to literal type #17818

Merged

hauntsaninja closed this as completed in

f6520c8

hauntsaninja closed this as completed in #17818

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment