Thanks Kovidgoyal!
I don't know how clean this solution is... but it works
In case someone has to use django and some more libs installed in python, here is a simple script that includes all the python site-packages:
libFoder = "c:/Python27/Lib/site-packages"
for root,dir, files in os.walk(libFoder):
sys.path.append(os.path.join(libFoder, root))