super() outside of a class

super.py

>>> class A: 
...     def foo(self): 
...         return 5 

>>> class B(A): 
...     def foo(self): 
...         return 3 

>>> b = B()                                                                             

>>> super(B, b).foo()                                                                   
5

>>> super(A, b).foo()                                                                   
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-6-863be3d3f354> in <module>
----> 1 super(A, b).foo()

AttributeError: 'super' object has no attribute 'foo'

>>> class C(B): 
...     pass 

>>> c = C()                                                                             

>>> super(B, c).foo()                                                                   
5

>>> A.foo(c)                                                                            
5