[Checkins] [zopefoundation/ExtensionClass] 416108: Drop support for Python 2.

[Michael Howitz]

  Branch: refs/heads/py39
  Home:   https://github.com/zopefoundation/ExtensionClass
  Commit: 416108b2a7e6413d15d42642218d160f1982c3f9
      https://github.com/zopefoundation/ExtensionClass/commit/416108b2a7e6413d15d42642218d160f1982c3f9
  Author: Michael Howitz <mh at gocept.com>
  Date:   2020-09-28 (Mon, 28 Sep 2020)

  Changed paths:
    M .travis.yml
    M CHANGES.rst
    M appveyor.yml
    M setup.cfg
    M setup.py
    M src/ComputedAttribute/_ComputedAttribute.c
    M src/ExtensionClass/_ExtensionClass.c
    M src/ExtensionClass/__init__.py
    M src/ExtensionClass/_compat.h
    M src/ExtensionClass/pickle/pickle.c
    M src/ExtensionClass/tests.py
    M src/MethodObject/_MethodObject.c
    M tox.ini

  Log Message:
  -----------
  Drop support for Python 2.