[entity] comparing two entities returns NotImplemented
Fixes a test when using some versions of unittest2, where
assertItemsEqual tries a sort and expects TypeError, which it doesn't
get if we directly raise NotImplementedError. The NotImplemented value
is treated specially by the interpreter:
https://docs.python.org/3.4/library/constants.html#NotImplemented
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s schema"""