Arch Linux

When I start a backup I get an Error Dialog saying:

Backup failed

Traceback (most recent call last):
File "/usr/bin/duplicity", line 1489, in <module>
with_tempdir(main)
File "/usr/bin/duplicity", line 1483, in with_tempdir
fn()
File "/usr/bin/duplicity", line 1332, in main
do_backup(action)
File "/usr/bin/duplicity", line 1414, in do_backup
globals.gpg_profile.passphrase = get_passphrase(1, action)
File "/usr/bin/duplicity", line 168, in get_passphrase
pass1 = getpass.getpass(_("GnuPG passphrase:")+" ")
File "/usr/lib/python2.7/getpass.py", line 83, in unix_getpass
passwd = fallback_getpass(prompt, stream)
File "/usr/lib/python2.7/getpass.py", line 118, in fallback_getpass
return _raw_input(prompt, stream)
File "/usr/lib/python2.7/getpass.py", line 128, in _raw_input
prompt = str(prompt)
UnicodeEncodeError: 'ascii' codec can't encode character u'\xfc' in position 10: ordinal not in range(128)

Name : deja-dup
Version : 28.0-1
Name : duplicity
Version : 0.6.23-2
Name : gnupg
Version : 2.0.22-2

Workaround: install duplicity 0.6.22