Adding classes to modules at runtime from outside that module

[Jeffrey Froman]

frambooz at gmail.com wrote:

> In Python, is it possible to add classes to a module at run-time?
> 
> Say I have a module foo and a module bar. Foo has class A and B, and
> bar has class C. I want to add class C to foo so I can access it as
> foo.C, but i want to do it without modifying foo's source.
> 
> Is this at all possible?

Yes, possible and easy:

# bar.py
import foo
class C(object):
   <class definition>
   ...
foo.C = C



Jeffrey