Duplicity fails with assertion error 'assert first.difftype != "diff", patch_seq'

[Marc-Etienne Vargenau]

I am trying to restore a directory "Bureau".

Duplicity restores some files, then fails with assertion error.

duplicity --file-to-restore Bureau file:///proj-aif/mvargena/ /home/mvargena/Bureau
[sudo] password for mvargena:
Les métadonnées locales et distantes sont déjà synchronisées. Aucune synchronisation nécessaire.
Date de dernière sauvegarde intégrale : Tue Feb 8 10:34:04 2011
GnuPG passphrase:
Traceback (most recent call last):
  File "/usr/bin/duplicity", line 1359, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1342, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1276, in main
    restore(col_stats)
  File "/usr/bin/duplicity", line 591, in restore
    restore_get_patched_rop_iter(col_stats)):
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 521, in Write_ROPaths
    for ropath in rop_iter:
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 494, in integrate_patch_iters
    final_ropath = patch_seq2ropath( normalize_ps( patch_seq ) )
  File "/usr/lib/python2.7/dist-packages/duplicity/patchdir.py", line 461, in patch_seq2ropath
    assert first.difftype != "diff", patch_seq
AssertionError: [(('Domoservices.ods',) reg)]

duplicity --version
duplicity 0.6.15

python --version
Python 2.7.2+

cat /etc/motd
Welcome to Ubuntu 11.10 (GNU/Linux 3.0.0-12-generic i686)

[Marc-Etienne Vargenau (marc-etienne-vargenau)]

Hello,

Removing the duplicity cache at ~/.cache/duplicity/ solved the problem.

Still, the assertion error should be replaced by a meaningful error indicating the cache corruption.

Best regards,