new_contents: # Copyright 2013-2019 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 PyBlack(PythonPackage):
      """Black is the uncompromising Python code formatter. By using it, you agree to
      cede control over minutiae of hand-formatting. In return, Black gives you
      speed, determinism, and freedom from pycodestyle nagging about formatting.
      """
  
      homepage = "https://github.com/ambv/black"
      url      = "https://pypi.io/packages/source/b/black/black-18.9b0.tar.gz"
  
      version('18.9b0', sha256='e030a9a28f542debc08acceb273f228ac422798e5215ba2a791a6ddeaaca22a5')
  
      depends_on('python@3.6.0:')
      # Needs setuptools at runtime so that `import pkg_resources` succeeds
      # See #8843 and #8689 for examples of setuptools added as a runtime dep
      depends_on('py-setuptools', type=('build', 'run'))
      # Translated from black's setup.py:
      # https://github.com/ambv/black/blob/master/setup.py
      depends_on('py-attrs@18.1.0:', type=('build', 'run'))
      depends_on('py-click@6.5:', type=('build', 'run'))
      depends_on('py-appdirs', type=('build', 'run'))
      depends_on('py-toml@0.9.4:', type=('build', 'run'))
  
subject: add new package