paul j3 <ajipa...@gmail.com> added the comment: The usage formatter is brittle, especially the part that adds mutually exclusive markings to the normal usage string. I don't think I've seen this error before, but I'm not surprised.
A real fix requires a rewrite of the usage formatter, which I've suggested in an other bug/issue. It would be a good idea to include this as a test case for such a patch. The simplest immediate fix is to just not use a mutually exclusive group when it isn't needed. I don't think it's urgent enough to require a special patch. --- start = actions.index(group._group_actions[0]) group is the mutually exclusive group that's being formatted. _group_actions is is list of Actions. The developer expected that the group would be populated (normally by 2 or more Actions), and didn't think it necessary to first check if it was empty. That's a reasonable assumption. ---------- nosy: +paul.j3 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue33415> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
