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 lint.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)