animals.py

class Animal(object):
    def __init__(self, *args, **kwargs):
        print "Animal args", args
        print "Animal kwargs", kwargs
        print "Animal name", kwargs['name']

class Dog(Animal):
    def __init(self, *args, **kwargs):
        super(Dog, self).__init__(*args, **kwargs)
        self.name = name

    def print_info(self):
        print "Dog name", self.name

d = Dog(name="fido")
d.print_info()