[Duplicity-talk] How to register a new backend (Pyrax for Rackspace Cloud)

[Miguel Jacq]

Hi,

I am trying to register the Pyrax (new, supported Rackspace Cloud API) backend 
with Duplicity in favour of the deprecated 'python-cloudfiles' API which 
provides the cf+http:// backend.


I followed the guide described here: 
http://gsusmonzon.blogspot.com.au/2013/07/backup-with-duplicity-and-rackspace.html

In particular, I can confirm I have:

1) fetched the pyraxbackend.py from 
https://bugs.launchpad.net/duplicity/+bug/1179322
2) stored it in /usr/share/pyshared/duplicity/backends/
3) symlinked it to 
/usr/lib/python2.6/dist-packages/duplicity/backends/pyraxbackend.py
4) ran python -m compileall /usr/lib/python2.6/dist-packages/duplicity/backends


I see that pyraxbackend.py includes this line: 

        duplicity.backend.register_backend("cfpyrax+http", PyraxBackend)


Yet when I run my duplicity command, I receive this:

UnsupportedBackendScheme: scheme not supported in url: 
cfpyrax+http://backup_XXXXXX

Is there a missing step I need to perform to register this backend?


I am running Debian 6 (still), on the rather old Duplicity 0.6.08b. I can 
consider upgrading (I need to anyway) but wondering if I'll face the same 
problem, in that there's a missing step to register a backend?

Thanks in advance,

Mig

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