Hi,
for python version, you must change the user preferences to specify the directory python launcher (menu Edition/Preferences ==> modelling system/TELEMAC). After, you must restart your prepro-Fudaa session.
You must work with the last release of prepro-Fudaa. I give you the link if you do not know:
sourceforge.net/projects/fudaa/files/prepro/
Before in your xterm window, you must execute the configuration file of telemac and after you run the session of fudaa-prepro.
best regards
DR