>>> class foo1():
...     def __init__(self, a, b):
...             mod = a 
...             exc = b
... 
>>> class foo2(foo1):
...     class Meta:
...             model = super(mod)
...             exclude = super(exc)
... 
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 2, in foo2
  File "<stdin>", line 3, in Meta
NameError: name 'mod' is not defined