[Checkins] [zopefoundation/zope.schema] 8dc845: Making tests work with py2 and py3

[Georg Gogo. BERNHARD]

  Branch: refs/heads/issue86
  Home:   https://github.com/zopefoundation/zope.schema
  Commit: 8dc845ff45a22a4a2a4d2e27c3b42f4041cf8990
      https://github.com/zopefoundation/zope.schema/commit/8dc845ff45a22a4a2a4d2e27c3b42f4041cf8990
  Author: Georg Bernhard <gogo at bluedynamics.com>
  Date:   2020-02-14 (Fri, 14 Feb 2020)

  Changed paths:
    M src/zope/schema/_bootstrapfields.py
    M src/zope/schema/tests/test__bootstrapfields.py

  Log Message:
  -----------
  Making tests work with py2 and py3