[Errno 2] No such file or directory: '/usr/bin/duplicity'

Backup started to fail with this message.
Do anyone run into this situation recently? Would installing duplicity independently restore things? Or if I edit backp.py to point somewhere else will it be overwritten in future updates?
Thank you all

I also have the same error.

Please use @mokiejovis solution here.

Edited to add: You can see here that after fixing the problem [Error 2] No such file or directory: ‘/usr/bin/duplicity’ was reintroduced.

Hi Solomon.
Thank you.
Solution in here