Public bug reported:
Certain backends require other modules, ncftp for FTP, sftp for SSH,
etc.. If the user is not going to be using these modules, it should not
be a requirement to have them on the system. I propose that we surround
all backend imports with a try/except and that all modules should check
requirements at import time prior to calling register_backend. If a
backend fails to load, the default should be silence, however a
verbosity of INFO or better should show why.
** Affects: duplicity
Importance: Low
Status: Confirmed
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Backend imports should be made optional
https://bugs.launchpad.net/bugs/394757
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Status in duplicity - Bandwidth Efficient Encrypted Backup: Confirmed
Bug description:
Certain backends require other modules, ncftp for FTP, sftp for SSH, etc.. If
the user is not going to be using these modules, it should not be a requirement
to have them on the system. I propose that we surround all backend imports
with a try/except and that all modules should check requirements at import time
prior to calling register_backend. If a backend fails to load, the default
should be silence, however a verbosity of INFO or better should show why.
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