How to initialize one parent at a time in multiple inheritance?

Suppose I have the following class inheriting from classes A and B:

class A:
    def __init__(self):
        self.x = 2
class B:
    def __init__(self,u):
        self.y = u + 2
class C(A,B):
    def __init__(self):
        #self.y should be 4 here

How do I initialize B only after initializing A? Using super(C,self).__init__() doesn’t let me use attributes of A into B.

Answer

You don’t HAVE to use super.

class A:
    def __init__(self):
        self.x = 2
class B:
    def __init__(self,u):
        self.y = u + 2
class C(A,B):
    def __init__(self):
        A.__init__(self)
        B.__init__(self, self.x)

Now, that does mean some pretty tight coupling, in that C has to be way too aware of what A.__init__ does.