MRO powerrrr

gistfile1.py

class RelatedField(object):
    def __init__(self, *args, **kwargs):
        sup = super(RelatedField, self)
        
        if hasattr(sup, 'test'):
            sup.test()
            
class Field(object):

    def test(self):
        print "Test on Field"
        
class C(RelatedField):
    pass
    
class D(RelatedField, Field):
    pass
    
c = C()
d = D()