Non-latin symbols in filenames crash backup process on UbuntuOne

[Sergey Mitrichev]

When doing backup of several files with non-lating filenames (cyrillic letters) to UbuntuOne the process get stopped with error message:

Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1404, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1397, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1277, in main
    globals.archive_dir).set_values()
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 691, in set_values
    self.get_backup_chains(partials + backend_filename_list)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 814, in get_backup_chains
    map(add_to_sets, filename_list)
  File "/usr/lib/python2.7/dist-packages/duplicity/collections.py", line 808, in add_to_sets
    log.Debug(_("File %s is not part of a known set; creating new set") % (filename,))
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 3: ordinal not in range(128)

When doing backup of the same set of files to (for example) Samba share - duplicity works successfully, no errors. So the error above is specific to UbuntuOne, and seems that error originales from duplicity creating log files (which maybe not Unicode-friendly).

Ubuntu 12.10
deja-dup 24.0-0ubuntu2
duplicity 0.6.19-0ubuntu2