It looks like one of the .py files may be corrupt. You could try downloading the latest git and putting over top of you existing install, just make sure you have a backup of your config file and your DB (just to be safe).
Setup:
HTPC: Acer Revo 3610 (openELEC 3.0.2) with Aeon Nox (4)
NAS: unRAID 5rc12a on an Intel 3GHz Core2Duo with 4GB of RAM and 5 2TB WD EARS Green Drives
Running: SickBeard, CouchPotato v2, Headphones, Maraschino, Plex and SimplePlugins