Comment 0 for bug 140563

Bazaar gives a traceback if a unicode character is given in a command option:

mbp@grace% ./bzr st -ة
bzr: ERROR: exceptions.UnicodeEncodeError: 'ascii' codec can't encode character u'\u0629' in position 17: ordinal not in range(128)

Traceback (most recent call last):
  File "/home/mbp/bzr/trivial/bzrlib/commands.py", line 802, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/home/mbp/bzr/trivial/bzrlib/commands.py", line 758, in run_bzr
    ret = run(*run_argv)
  File "/home/mbp/bzr/trivial/bzrlib/commands.py", line 465, in run_argv_aliases
    args, opts = parse_args(self, argv, alias_argv)
  File "/home/mbp/bzr/trivial/bzrlib/commands.py", line 544, in parse_args
    options, args = parser.parse_args(args)
  File "optparse.py", line 1380, in parse_args
    self.error(str(err))
UnicodeEncodeError: 'ascii' codec can't encode character u'\u0629' in position 17: ordinal not in range(128)

Originally reported by "Grinchishin V." <email address hidden>

This is similar to bug 57123, but probably recurring because we have switched to using optparse since that commit was merged. Unlike that bug, this only happens with options, not command names.