Re: [Duplicity-talk] Re: Problem with scp backend and --collection-status

[Kenneth Loafman]

Andreas Schildbach wrote:
> Kenneth Loafman wrote:
>
> > >     raise BackendException("Error running '%s'" % commandline)
> > > duplicity.backends.BackendException: Error running 'printf 'cd backup/
> > > ls -1' | sftp -b - address@hidden'
> >
> > Make sure you can ssh or sftp into the system without needing a 
> > password.  I ran across this when I had not set up the certs on my new 
> > system.
>
> I'm afraid I cannot do that. I'd like duplicity to interactively ask for 
> a password, like ssh, scp and sftp do.

Yes, that has been a request for quite some time.  Duplicity runs these 
as subprocesses and interactive access to the console from a subprocess 
is problematic, especially when dealing with Windows.  What would be 
needed is an Expect-like package for Python that could interact with the 
subprocess to provide the password.  That may come in the 0.5.0 release, 
once I've made the package stable.

In the meantime, a key on the remote system is the way to go.  It would 
allow you to run unattended backups, which was the original goal anyway.

...Ken