How to check whether a variable is a class or not?

Question

I was wondering how to check whether a variable is a class (not an instance!) or not.

I\'ve tried to use the function isinstance(object, class_or_type_or_tuple

Answer 1

There are some working solutions here already, but here's another one:

>>> import types
>>> class Dummy: pass
>>> type(Dummy) is types.ClassType
True