python设计模式：适配器模式

class Synthesizer:
    def __init__(self, name):
        self.name = name

    def __str__(self):
        return 'the {} synthesizer'.format(self.name)

    def play(self):
        return 'is playing an electronic song'

class Human:
    def __init__(self, name):
        self.name = name

    def __str__(self):
        return '{} the human'.format(self.name)

    def speak(self):
        return 'says hello'

class Computer:

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

    def __str__(self):
        return 'the {} computer'.format(self.name)

    def execute(self):
        return 'executes a program'

class Adapter:

    def __init__(self, obj, adapted_methods):
        self.obj = obj
        print(obj.__dict__)
        self.__dict__.update(obj.__dict__)
        self.__dict__.update(adapted_methods)

    def __str__(self):
        return str(self.obj)

def main():
    objects = [Computer('Asus')]
    synth = Synthesizer('moog')
    objects.append(Adapter(synth, dict(execute=synth.play)))
    human = Human('Bob')
    objects.append(Adapter(human, dict(execute=human.speak)))
    for i in objects:

        print('{} {}'.format(str(i), i.execute()))

if __name__ == "__main__":
    main()
    print(Human.__dict__)

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