text: # 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 PySix(PythonPackage):
      """Python 2 and 3 compatibility utilities."""
  
      homepage = "https://pypi.python.org/pypi/six"
      url      = "https://pypi.io/packages/source/s/six/six-1.11.0.tar.gz"
  
      import_modules = ['six']
  
      version('1.12.0', sha256='d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73')
      version('1.11.0', sha256='70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9')
      version('1.10.0', sha256='105f8d68616f8248e24bf0e9372ef04d3cc10104f1980f54d57b2ce73a5ad56a')
      version('1.9.0',  sha256='e24052411fc4fbd1f672635537c3fc2330d9481b18c0317695b46259512c91d5')
      version('1.8.0',  sha256='047bbbba41bac37c444c75ddfdf0573dd6e2f1fbd824e6247bb26fa7d8fa3830')
  
      extends('python', ignore=r'bin/pytest')
  
      # Newer versions of setuptools require six. Although setuptools is an
      # optional dependency of six, if it is not found, setup.py will fallback
      # on distutils.core instead. Don't add a setuptools dependency or we
      # won't be able to bootstrap setuptools.
  
      # depends_on('py-setuptools', type='build')
  