Description of problem:
run 'dnf repolist' with LANG=cs_CZ.utf8

Version-Release number of selected component:
dnf-0.6.0-1.fc21

Additional info:
reporter:       libreport-2.2.3
cmdline:        /usr/bin/python -OO /bin/dnf repolist
dso_list:       python-libs-2.7.8-4.1.fc21.x86_64
executable:     /bin/dnf
kernel:         3.16.1-301.mst.fc21.x86_64
runlevel:       N 5
type:           Python
uid:            0

Truncated backtrace:
locale.py:166:_group:UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 0: ordinal not in range(128)

Traceback (most recent call last):
  File "/bin/dnf", line 36, in <module>
    main.user_main(sys.argv[1:], exit_code=True)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 182, in user_main
    errcode = main(args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 84, in main
    return _main(base, args)
  File "/usr/lib/python2.7/site-packages/dnf/cli/main.py", line 134, in _main
    cli.run()
  File "/usr/lib/python2.7/site-packages/dnf/cli/cli.py", line 1072, in run
    return self.command.run(self.base.extcmds)
  File "/usr/lib/python2.7/site-packages/dnf/cli/commands/repolist.py", line 127, in run
    ui_num = _num2ui_num(num)
  File "/usr/lib/python2.7/site-packages/dnf/cli/commands/repolist.py", line 47, in _num2ui_num
    return ucd(locale.format("%d", num, True))
  File "/usr/lib64/python2.7/locale.py", line 196, in format
    return _format(percent, value, grouping, monetary, *additional)
  File "/usr/lib64/python2.7/locale.py", line 217, in _format
    formatted, seps = _group(formatted, monetary=monetary)
  File "/usr/lib64/python2.7/locale.py", line 166, in _group
    left_spaces + thousands_sep.join(groups) + right_spaces,
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 0: ordinal not in range(128)

Local variables in innermost frame:
conv: {'mon_decimal_point': ',', 'int_frac_digits': 2, 'p_sep_by_space': 1, 'frac_digits': 2, 'thousands_sep': '\xc2\xa0', 'n_sign_posn': 1, 'decimal_point': ',', 'int_curr_symbol': 'CZK ', 'n_cs_precedes': 0, 'p_sign_posn': 1, 'mon_thousands_sep': '\xc2\xa0', 'negative_sign': '-', 'currency_symbol': 'K\xc4\x8d', 'n_sep_by_space': 1, 'mon_grouping': [3, 3, 0], 'p_cs_precedes': 0, 'positive_sign': '', 'grouping': [3, 3, 0]}
thousands_sep: '\xc2\xa0'
interval: 3
left_spaces: u''
monetary: False
s: ''
groups: [u'42', u'290']
right_spaces: ''
grouping: [3, 3, 0]

Potential duplicate: bug 1115076