[rand_r]

My preference is to do this, which I think is quite nice and easy to work with:

    def my_very_very_very_very_very_long_function_name(
            self,
            param1,
            param2,
            ):
        do_it()  # function body here.

[blueprint]

Yup this. It works perhaps even more nicely in languages that have braces and return types, e.g.

    func some_name(
        arg: Type,
        arg2: Type
    ) -> RetVal {
        …
    }