Message 158094 - Python tracker

Serhiy: this looks good.  I get some test errors when I apply it on 2.7 though.  Would you be interested in doing a 2.7 version as well?

(Minor comment: the test method would be better as two test methods, and it would be nice to have a third test method that checked for the TypeError for non-binary comments...that won't apply to 2.7, obviously).