look_at_reversed_bases.py

>>> class ModelMeta(type):
...     def __new__(cls, name, bases, attrs):
...         for base in reversed(bases):
...             print 'Base:', base
...         return type.__new__(cls, name, bases, attrs)
... 
>>> 
>>> class A(object):
...     def __init__(self):
...         print 'A'
...     def all_three(self):
...         print 'A: 3'
...     def first_two(self):
...         print 'A: first 2 '
... 
>>> 
>>> class B(object):
...     def __init__(self):
...         print 'B'
...     def all_three(self):
...         print 'B: 3'
...     def first_two(self):
...         print 'B: first 2'
...     def last_two(self):
...         print 'B: last 2'
... 
>>> 
>>> class C(object):
...     def __init__(self):
...         print 'C'
...     def all_three(self):
...         print 'C: 3'
...     def last_two(self):
...         print 'C: last 2'
...     def last_one(self):
...         print 'C: last 1'
... 
>>> 
>>> class Foo(A, B, C):
...     __metaclass__ = ModelMeta
... 
Base: <class '__main__.C'>
Base: <class '__main__.B'>
Base: <class '__main__.A'>
>>> 
>>> f = Foo()
A
>>> f.all_three()
A: 3
>>> f.first_two()
A: first 2 
>>> f.last_two()
B: last 2
>>> f.last_one()
C: last 1
>>>