Python test

animal.py

class Animal(object):
    def __init__(self):
        self.name = "Animal"

    def eat(self, food = "nothing"):
        print self.name + " eats " + food

# ==================================================

import animal

class Dog(animal.Animal):
    def __init__(self):
        super(animal.Animal, self).__init__()
        self.name = "Dog"

    def eat(self, word):
        return word + ","

    def talk(self, words):
        print "".join(map(self.eat, words))

d = Dog()
d.talk(["a", "b", "c"])