old_contents: # Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  
  
  class PyZopeEvent(PythonPackage):
      """Very basic event publishing system."""
  
      homepage = "https://github.com/zopefoundation/zope.event"
      pypi = "zope.event/zope.event-4.3.0.tar.gz"
  
      version('4.3.0', sha256='e0ecea24247a837c71c106b0341a7a997e3653da820d21ef6c08b32548f733e7')
  
      depends_on('py-setuptools', type='build')
  
new_contents: # Copyright 2013-2021 Lawrence Livermore National Security, LLC and other
  # Spack Project Developers. See the top-level COPYRIGHT file for details.
  #
  # SPDX-License-Identifier: (Apache-2.0 OR MIT)
  
  from spack import *
  
  
  class PyZopeEvent(PythonPackage):
      """Very basic event publishing system."""
  
      homepage = "https://github.com/zopefoundation/zope.event"
      pypi = "zope.event/zope.event-4.3.0.tar.gz"
  
      version('4.5.0', sha256='5e76517f5b9b119acf37ca8819781db6c16ea433f7e2062c4afc2b6fbedb1330')
      version('4.3.0', sha256='e0ecea24247a837c71c106b0341a7a997e3653da820d21ef6c08b32548f733e7')
  
      depends_on('py-setuptools', type=('build', 'run'))
  
subject: add 4.5.0 (#27595)