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 PyInterfaceMeta(PythonPackage):
      """A convenient way to expose an extensible API with enforced method
      signatures and consistent documentation."""
  
      homepage = "https://github.com/matthewwardrop/interface_meta"
      pypi = "interface_meta/interface_meta-1.2.4.tar.gz"
  
      version('1.2.4', sha256='4c7725dd4b80f97b7eecfb26023e1a8a7cdbb6d6a7207a8e93f9d4bfef9ee566')
  
      depends_on('python@3.4:', type=('build', 'run'))
      depends_on('py-setuptools', type='build')
      depends_on('py-setupmeta', type='build')
  
subject: add new package (#27340)