How to get method parameter names?

Question

Given the Python function:

def a_method(arg1, arg2):
    pass

How can I extract the number and names of the arguments. I.e., given that I h

Answer 1

The Python 3 version is:

def _get_args_dict(fn, args, kwargs):
    args_names = fn.__code__.co_varnames[:fn.__code__.co_argcount]
    return {**dict(zip(args_names, args)), **kwargs}

The method returns a dictionary containing both args and kwargs.