[PATCH v2] Fix xmethod Python so that it works with Python 3

[Joel Brobecker]

> > Yes. Pleasae make sure to update the branch's wiki as well
> > (section "Fixes in 7.8.1" - you might need to create a PR for that).
> 
> Pushed to the branch. For editing the wiki, does my account need some
> special permissions? My username is "SivaChandraReddy".

Yes, you need to be part of the EditorGroup. I've just added you,
so you should be able to edit the wiki now.

-- 
Joel