bug#49979: closed (Duplicity BackendException: No module named 'paramiko')

[GNU bug Tracking System]

Your message dated Wed, 11 Aug 2021 12:25:17 -0400
with message-id <YRP57QxC1nQcNFmO@jasmine.lan>
and subject line Re: bug#49979: Duplicity BackendException: No module named 
'paramiko'
has caused the debbugs.gnu.org bug report #49979,
regarding Duplicity BackendException: No module named 'paramiko'
to be marked as done.

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49979: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=49979
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> --- Begin Message ---
>
>
>
> Subject: 
>
> Duplicity BackendException: No module named 'paramiko'
>
>
>
>
> Date: 
>
> Tue, 10 Aug 2021 12:15:44 +0200
>
>
>
>
> User-agent: 
>
> mu4e 1.4.15; emacs 28.0.50
>
>
>
>
>
> Context:
>
> Using guix as a package manager under a foreign up to date 
> archlinux distribution.
>
> The output of guix describe --format=channels is
>
>    
> https://gitlab.com/csantosb/wikidata/-/blob/master/guix-profiles-backup/guix-channels.scm
>
>
> Problem:
>
> When using duplicity to backup to a sftp server, I get this error 
> message
>
>    BackendException: Could not initialize backend: No module 
>    named 'paramiko'
>
> I have installed python-paramiko, but this doesn't fixes the 
> problem.
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#49979: Duplicity BackendException: No module named 'paramiko'
>
>
>
>
> Date: 
>
> Wed, 11 Aug 2021 12:25:17 -0400
>
>
>
>
> On Wed, Aug 11, 2021 at 11:49:01AM +0200, Cayetano Santos wrote:
> > Sure. Just issue a
> > 
> >    guix install duplicity
> > 
> > and then
> > 
> >    duplicity /tmp sftp://dummy_user@sftp.server/dummy_backup
> > 
> > you’ll get a
> > 
> > BackendException: Could not initialize backend: No module named 'paramiko'
>
> > message.
>
> Thanks! I tested by adding python-paramiko to native-inputs [0], changed
> the dummy values to something meaningful, and tried your command:
>
> ------
> $ duplicity /tmp sftp://leo@domain/dummy_backup 
> Local and Remote metadata are synchronized, no sync needed.
> Last full backup date: none
> GnuPG passphrase for decryption: %    
> ------
>
> I didn't go past that point but it seems to fix the specific bug you
> reported. So, I pushed the change:
>
> https://git.savannah.gnu.org/cgit/guix.git/commit/?id=b1c97ff60b8ac8205d878fec3af8d02ffdf601fe
>
> You can do `guix pull --commit=b1c97ff60b8 && guix package --upgrade=duplicity`
> to get the new version of the package.
>
> [0] It's unusual for run-time dependencies like paramiko to be a
> native-input. Typically, native-inputs are just build-time dependencies.
> Maybe there is some room for improvement in our Duplicity package...
>
> https://guix.gnu.org/manual/en/html_node/package-Reference.html
>
>
> --- End Message ---