Removed debugging statment left in by accident.
Clone of McLab project.  Originally https://github.com/Sable/mclab
The project home page is http://www.sable.mcgill.ca/mclab/.
1. Removed another debug stmt.
2. Fixed issues flagged by pep8.
Added another code to ignore.
Trivial script to run pep8 instead of autopep8, just for convenience.