metomi/rose — pull request #168 by benfitzpatrick (2012-11-13 12:34:55+00:00)
Title: #166: fix choices widget

This addresses #166. Using a list or a dict as a default in OptionParser is not a good idea, as it appears to invoke this kind of behaviour: http://stackoverflow.com/questions/1132941/least-astonishment-in-python-the-mutable-default-argument