old_contents: from setuptools import setup
  
  setup(
      name='certbot-example-plugins',
      package='certbot_example_plugins.py',
      install_requires=[
          'certbot',
          'zope.interface',
      ],
      entry_points={
          'certbot.plugins': [
              'example_authenticator = certbot_example_plugins:Authenticator',
              'example_installer = certbot_example_plugins:Installer',
          ],
      },
  )
  
new_contents: from setuptools import setup
  
  setup(
      name='certbot-example-plugins',
      package='certbot_example_plugins.py',
      install_requires=[
          'certbot',
      ],
      entry_points={
          'certbot.plugins': [
              'example_authenticator = certbot_example_plugins:Authenticator',
              'example_installer = certbot_example_plugins:Installer',
          ],
      },
  )
  
subject: remove zope from plugin example (#8998)