Python的super()在多继承下的方法推导顺序（MRO, Method Resolution Order）涉及到C3线性化算法（C3 linearization wiki）。其中关键是，
children precede their parents and the order of appearance in __bases__ is respected.
例子，
from collections import Counter, OrderedDict
class OrderedCounter(Counter, OrderedDict):
'Counter that remembers the order elements are first encountered'
def __repr__(self):
return '%s(%r)' % (self.__class__.__name__, OrderedDict(self))
def __reduce__(self):
return self.__class__, (OrderedDict(self),)
oc = OrderedCounter('abracadabra')
print oc
相关链接：
Python’s super() considered super!
MRO: The Python 2.3 Method Resolution Order