It's not a script, it's a python class. You just copy the b2backend.py to duplicity python directory. Look for this filename on /usr/lib/python2.7 or whatever version you're using and overwrite it there.
It's not a script, it's a python class. You just copy the b2backend.py to duplicity python directory. Look for this filename on /usr/lib/python2.7 or whatever version you're using and overwrite it there.