inconsistent-return-statements / R1710#

Message emitted:

Either all return statements in a function should return an expression, or none of them should.

Description:

According to PEP8, if any return statement returns an expression, any return statements where no value is returned should explicitly state this as return None, and an explicit return statement should be present at the end of the function (if reachable)

Correct code:

def get_the_answer(value: str) -> str | None:
    if value:
        return value
    return None

Problematic code:

def get_the_answer(value: str) -> str | None:  # [inconsistent-return-statements]
    if value:
        return value

Created by the refactoring checker.