[Checkins] [zopefoundation/Acquisition] 4a4623: Fix pure Python version and skip on Python 2.

[Michael Howitz]

  Branch: refs/heads/fix-38
  Home:   https://github.com/zopefoundation/Acquisition
  Commit: 4a46236ce1703b7bbea2d91bcdd43d34aa95f306
      https://github.com/zopefoundation/Acquisition/commit/4a46236ce1703b7bbea2d91bcdd43d34aa95f306
  Author: Michael Howitz <mh at gocept.com>
  Date:   2019-04-09 (Tue, 09 Apr 2019)

  Changed paths:
    M src/Acquisition/__init__.py
    M src/Acquisition/tests.py

  Log Message:
  -----------
  Fix pure Python version and skip on Python 2.