[Checkins] [zopefoundation/zope.generations] 4f13f2: Fix Python 3.6.

[GitHub]

  Branch: refs/heads/py3
  Home:   https://github.com/zopefoundation/zope.generations
  Commit: 4f13f2e0473b1956dea74412d667fd447cae1395
      https://github.com/zopefoundation/zope.generations/commit/4f13f2e0473b1956dea74412d667fd447cae1395
  Author: Michael Howitz <mh at gocept.com>
  Date:   2017-06-19 (Mon, 19 Jun 2017)

  Changed paths:
    M src/zope/generations/tests/test_generations.py

  Log Message:
  -----------
  Fix Python 3.6.