The Zope community likes to innovate on programming. One such innovation is to use extensive “doctests” in place of conventional code tests. This practice, like other innovations, stirs up a little controversy now and then, since it’s often not clear how widely the idea should be applied.
In that context, may I just say that the doctests for zope.wfmc are a pleasure to read. Now if this package just had a wiki-based homepage and linked online API docs, I think it would be a fine model for other packages.