class A(object):
    def __init__(self):
        print "A",
        super(A, self).__init__()
    pass
    
class B(object):
    def __init__(self):
        print "B",
        super(B, self).__init__()
    pass

# some other module defines this class, not knowing about super()

class C(A,B):
    def __init__(self):
        print "C",
        A.__init__(self)
        B.__init__(self)
#        super(D, self).__init__()
    pass

print "MRO:", [x.__name__ for x in C.__mro__]
print "Calls:",
C()
print