Default Values

defaults.py

class Person:

    def __init__(self, name="", age=0):
        self.__name = name
        self.__age = age

import inspect

a = inspect.getargspec(Person.__init__)

# This: {'age': 0, 'name': ''}
defs = dict(zip(a.args[-len(a.defaults):],a.defaults))

# This: {'age': 0, 'name': '', 'self': None}
args_with_defaults = {k: (defs[k] if k in defs else None) for k in a.args}