ungleich-learning-circle/sami/learn-python-the-hard-way/ex42.py

 ## Animal is-a object (yes, sort of confusing) look at the extra credit
 class Animal(object):

    pass

 ## dog has an attribute
 class Dog(Animal):


     def __init__(self, name):
         ## ??

         self.name

 
## 
class Cat(Animal):


    def __init__(self, name):
        ## ??
        self.name = name

## ??
class Person(object):


    def __init__(self, name):
        ## ??
        self.name = name


        ## Person has-a pet of some kind194

        self.pet = None


## ??
class Employee(Person):


    def __init__(self, name, salary):
        ## ?? hmm what is this strange magic?
        super(Employee, self).__init__(name)
        ## ??
        self.salary = salary

## ??
class Fish(object):

    pass

## ??
class Salmon(Fish):

    pass

## ??
class Halibut(Fish):

    pass

## rover is-a Dog
rover = Dog("Rover")

## ??
satan = Cat("Satan")

## ??
mary = Person("Mary")

## ??
mary.pet = satan

## ??
frank = Employee("Frank", 120000)

## ??
frank.pet = rover

## ??
flipper = Fish()

## ??
crouse = Salmon()


## ??
 harry = Halibut()