Comment 3 for bug 1085984

Hmmm. oslo show a different error "TypeError: argument of type '_deferred_version_string' is not iterable"

http://paste.openstack.org/show/27310/

with this test patch

http://paste.openstack.org/show/27311/

If i add a __iter__ then it fails, with another problem

    help = self._root_section.format_help()
  File "/usr/lib/python2.7/argparse.py", line 209, in format_help
    func(*args)
  File "/usr/lib/python2.7/argparse.py", line 483, in _format_text
    return self._fill_text(text, text_width, indent) + '\n\n'
  File "/usr/lib/python2.7/argparse.py", line 619, in _fill_text
    text = self._whitespace_matcher.sub(' ', text).strip()
TypeError: expected string or buffer

will keep looking