List all base classes in a hierarchy of given class?

Question

Given a class Foo (whether it is a new-style class or not), how do you generate all the base classes - anywhere in the inheritance hierarchy -

Answer 1

In python 3.7 you don't need to import inspect, type.mro will give you the result.

>>> class A:
...   pass
... 
>>> class B(A):
...   pass
... 
>>> type.mro(B)
[, , ]
>>>

attention that in python 3.x every class inherits from base object class.