As I told, I'm driving a pywikipedia bot (Alebot) into willow; I installed pywikipedia at $HOME, I set 

PYTHONPATH=/home/alebot/pywikipedia [,.....] 

into .environment file, and I am reviewing at my best python scripts to run them by qsub/qcronsub. 

Most of my scripts obviously need a statement:

import wikipedia [,.....]

My questions:
1. Do I really need to install pywikipedia into $HOME?
2. My scripts run happily outside SGE, but when I try to run them under SGE I get an error: 
ImportError: No module named wikipedia

I didn't find doc for this ImportError (I suppose, PYTHONPATH is wrong).

Where am I going wrong? 

Alex