In [1]:

    

class A:
    
    def __init__(self):
        self.hello = 'Hello'
        self.world = 'World'


    

In [2]:

    

a = A()

print(a.__dict__)


    

    




{'hello': 'Hello', 'world': 'World'}

In [3]:

    

class B(A):
    
    def to_dict(self):
        data = {}
        
        for k, v in self.__dict__.items():
            data[k] = [v]
        
        return data


    

In [4]:

    

b = B()

print(b.to_dict())


    

    




{'hello': ['Hello'], 'world': ['World']}

In [7]:

    

class C(B):
    
    @property
    def name(self):
        return '{0} {1}!'.format(self.hello, self.world)
    
    def to_dict(self):
        data = {}
        
        for k, v in self.__dict__.items():
            data[k] = [v]
        
        data['name'] = self.name
        
        return data


    

In [8]:

    

c = C()

print(c.to_dict())


    

    




{'hello': ['Hello'], 'world': ['World'], 'name': 'Hello World!'}

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