New submission from A.M. Kuchling <[EMAIL PROTECTED]>: (copied from the Optik bug tracker)
Related bug: http://www.mail-archive.com/python-bugs-list@python.org/msg07227.html Hi all, It seems to me that the workaround to the above bug in optparse.py versio 1.5.3 introduces a new bug when help strings are byte strings (as opposed to unicode) containing non-ascii characters. Consider the following script: $ cat test.py #!/usr/bin/env python # -*- coding:latin-1 -*- import optparse parser = optparse.OptionParser() parser.add_option("--test",help="This does not work: é") parser.parse_args() When called with "$ ./test.py --help", this script fails with the following traceback: $ ./test.py -h Traceback (most recent call last): File "./test.py", line 7, in <module> parser.parse_args() File "/usr/lib/python2.5/optparse.py", line 1385, in parse_args stop = self._process_args(largs, rargs, values) File "/usr/lib/python2.5/optparse.py", line 1429, in _process_args self._process_short_opts(rargs, values) File "/usr/lib/python2.5/optparse.py", line 1536, in _process_short_opts option.process(opt, value, values, self) File "/usr/lib/python2.5/optparse.py", line 782, in process self.action, self.dest, opt, value, values, parser) File "/usr/lib/python2.5/optparse.py", line 804, in take_action parser.print_help() File "/usr/lib/python2.5/optparse.py", line 1655, in print_help file.write(self.format_help().encode(encoding, "replace")) UnicodeDecodeError: 'ascii' codec can't decode byte 0xe9 in position 117: ordinal not in range(128) This behaviour can be reproduced with utf-8 encoded strings as well. If I understand correctly, line 1655 of optparse.py only works if format_help() returns an ascii byte string or a unicode string, but the call to "encoding" fails when it is a byte string containing non-ascii character. I think this is either a bug and should be fixed, or very misleading (and should be fixed too :). I hope to have helped even a little. Thanks for optparse, and keep up the good work! Cheers, Antoine ---------- components: Library (Lib) messages: 75847 nosy: akuchling severity: normal status: open title: optparse and non-ascii help strings type: behavior versions: Python 2.7 _______________________________________ Python tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue4319> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com