[Checkins] [zopefoundation/zope.interface] 563c7b: Really really install twine, ignoring any old syst...

[Marius Gedminas]

  Branch: refs/heads/fix-macos-maybe
  Home:   https://github.com/zopefoundation/zope.interface
  Commit: 563c7b9dc61a3eed97ebfeb86c02830d6746b665
      https://github.com/zopefoundation/zope.interface/commit/563c7b9dc61a3eed97ebfeb86c02830d6746b665
  Author: Marius Gedminas <marius at gedmin.as>
  Date:   2019-11-11 (Mon, 11 Nov 2019)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Really really install twine, ignoring any old system packages