Adapter pattern

adapter.py

class Dog(object):
    '''A representation of a dog'''
    def __init__(self, name):
        self.name = name

    def bark(self):
        return 'Woof!!'


class Person:
    '''A representation of a person'''
    def __init__(self, name):
        self.name = name

    def make_noise(self):
        return 'Hello!!'


class DogAdapter:
    '''Adapts the Dog class through encapsulation'''
    def __init__(self, canine):
        self.canine = canine

    def make_noise(self):
        '''This is the only method that's adapted'''
        return self.canine.bark()

    def __getattr__(self, attr):
        '''Everything else is delegated to the object'''
        return getattr(self.canine, attr)


def interact_with_creature(creature):
    '''
    React to an event by showing the creature's name and what it says
    '''

    return (creature.name, creature.make_noise())


person = Person('John')
dog = Dog('Sprocket')
dog_adapter = DogAdapter(dog)
print(interact_with_creature(person))
print(interact_with_creature(dog_adapter))