如何直接访问组件的属性和方法？

Question

Having created a composite class in python, is there a (simple) way how to directly access the attributes/methods of the components? That is without specifying which component the attribute/method belongs to?

Here is the MWE:

class Component1:
    def __init__(self, data1):
        self.data1 = data1

    def add1(self):
        return self.data1 + 1

class Component2:
    def __init__(self, data2):
        self.data2 = data2

    def add2(self):
        return self.data2 + 2



class Composite:
    def __init__(self, data1, data2):
        self.component1 = Component1(data1)
        self.component2 = Component2(data2)


composite = Composite(data1, data2)

# Now I can access data1 (and data2)
# But it is really cumbersome
composite.component1.data1



# So I would like to have just
composite.data1

Is there a way to achieve this especially when the number of attributes and methods is high? I know I could add the property

@property
def data1(self):
    return self.component1.data1

but that would be painful with a high number of attributes and methods.

Edit:

Each component has different attributes/method names from each other. There also is not a common basis (eg, Component1().comp1_attibute_i or anything similar). The number at the end of the names is not present in the real problem (it was used just for simplification).

Answer 1

Derive or use dictionaries for your class. One dictionary has the attributes, and one dictionary the methods.

So attribute access is composite["data1"] .

Functions could be invoked via getattr . I don't know the details but there's some useful stuff here .