Subject: Duplicity BackendException: No module named b2sdk

From: Cayetano Santos <[email-masked]>
Date: Thu, 03 Nov 2022 17:48:24 +0100

Context:

Using latest guix as a package manager under a foreign up to date 
archlinux distribution.

Problem:

When using duplicity to backup to a sftp server, I get this error 
message

    BackendException: Could not initialize backend: No module 
    named 'b2sdk'

As a reference, see https://issues.guix.gnu.org/49979.