Adding classes to modules at runtime from outside that module

[frambooz at gmail.com]

Hey guys,

  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?

  Thanks much.

  ` Rogier van Etten