A Python function will always have a return value. There is no notion of procedure or routine in Python. So, if you don’t explicitly use a return value in a return statement, or if you totally omit the return statement, then Python will implicitly return a default value for you.

Is return necessary in Python functions?

No, it is not necessary. The function returns after the last line. There is no difference between a simple return and no return .

Do you need return at the end of a Python function?

A return statement effectively ends a function; that is, when the Python interpreter executes a function’s instructions and reaches the return , it will exit the function at that point.