too-many-return-statements (PLR0911)

Derived from the Pylint linter.

What it does

Checks for functions or methods with too many return statements.

By default, this rule allows up to six return statements, as configured by the pylint.max-returns option.

Why is this bad?

Functions or methods with many return statements are harder to understand and maintain, and often indicative of complex logic.

Example

def capital(country: str) -> str | None:
    if country == "England":
        return "London"
    elif country == "France":
        return "Paris"
    elif country == "Poland":
        return "Warsaw"
    elif country == "Romania":
        return "Bucharest"
    elif country == "Spain":
        return "Madrid"
    elif country == "Thailand":
        return "Bangkok"
    else:
        return None

Use instead:

def capital(country: str) -> str | None:
    capitals = {
        "England": "London",
        "France": "Paris",
        "Poland": "Warsaw",
        "Romania": "Bucharest",
        "Spain": "Madrid",
        "Thailand": "Bangkok",
    }
    return capitals.get(country)

Options

• pylint.max-returns