I've done a git clone of the app nznhydra available here: https://github.com/theotherp/nzbhydra
When running it with "python2.7 nzbhydra.py --nobrowser" I get the following error:
root@aria2_1:/usr/local/www/nginx/nzbhydra # python2.7 nzbhydra.py --nobrowser
Traceback (most recent call last)...