Question

Is there a way to get the parameter names a function takes?

def foo(bar, buz):
    pass

magical_way(foo) == ["bar", "buz"]

Answer 1

Use the inspect module from Python’s standard library (the cleanest, most solid way to perform introspection).

Specifically, inspect.getargspec(f) returns the names and default values of f‘s arguments — if you only want the names and don’t care about special forms *a, **k,

import inspect

def magical_way(f):
    return inspect.getargspec(f)[0]

completely meets your expressed requirements.