Apples and Oranges with a wrapper

apple_wrapper.py

class Apple:
    worm = "~~~"

class Orange:
    def slices(self):
        return [1, 2, 3]

def get_slices(basket):
    """For each item in the basket get it's slices"""
    slices = []
    for item in basket:
        slices.append(item.slices())
    return slices

class AppleWrapper:
    """ This class takes an apple and provides aditional functionality for it"""
    def __init__(self, apple):
        self.apple = apple

    def slices(self):
        self.apple.worm = None #remove the worm
        return [1, 2, 3, 4]

if __name__ == '__main__':
    basket = []
    basket.append(Orange())
    basket.append(AppleWrapper(Apple()))
    print get_slices(basket)