On Apr 3, 2009, at 7:21 PM, Wichert Akkerman wrote: > This looks like a poor man's enum. I'ld prefer to have a proper enum > like thing. Seems a little different to me. For what it is worth, though, if you do want an enum in zope.schema, Canonical has lazr.enum: http://pypi.python.org/pypi/lazr.enum . Gary