old_contents: ##############################################################################
  # Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/spack/spack
  # Please also see the NOTICE and LICENSE files for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class PyCython(PythonPackage):
      """The Cython compiler for writing C extensions for the Python language."""
      homepage = "https://pypi.python.org/pypi/cython"
      url      = "https://pypi.io/packages/source/c/cython/Cython-0.25.2.tar.gz"
  
      version('0.28.1', 'c549effadb52d90bdcb1affc1e5dbb97')
      version('0.25.2', '642c81285e1bb833b14ab3f439964086')
      version('0.23.5', '66b62989a67c55af016c916da36e7514')
      version('0.23.4', '157df1f69bcec6b56fd97e0f2e057f6e')
  
      # These versions contain illegal Python3 code...
      version('0.22', '1ae25add4ef7b63ee9b4af697300d6b6')
      version('0.21.2', 'd21adb870c75680dc857cd05d41046a4')
  
new_contents: ##############################################################################
  # Copyright (c) 2013-2018, Lawrence Livermore National Security, LLC.
  # Produced at the Lawrence Livermore National Laboratory.
  #
  # This file is part of Spack.
  # Created by Todd Gamblin, tgamblin@llnl.gov, All rights reserved.
  # LLNL-CODE-647188
  #
  # For details, see https://github.com/spack/spack
  # Please also see the NOTICE and LICENSE files for our notice and the LGPL.
  #
  # This program is free software; you can redistribute it and/or modify
  # it under the terms of the GNU Lesser General Public License (as
  # published by the Free Software Foundation) version 2.1, February 1999.
  #
  # This program is distributed in the hope that it will be useful, but
  # WITHOUT ANY WARRANTY; without even the IMPLIED WARRANTY OF
  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the terms and
  # conditions of the GNU Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this program; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  ##############################################################################
  from spack import *
  
  
  class PyCython(PythonPackage):
      """The Cython compiler for writing C extensions for the Python language."""
      homepage = "https://pypi.python.org/pypi/cython"
      url      = "https://pypi.io/packages/source/c/cython/Cython-0.25.2.tar.gz"
  
      version('0.28.1', 'c549effadb52d90bdcb1affc1e5dbb97')
      version('0.25.2', '642c81285e1bb833b14ab3f439964086')
      version('0.23.5', '66b62989a67c55af016c916da36e7514')
      version('0.23.4', '157df1f69bcec6b56fd97e0f2e057f6e')
  
      # These versions contain illegal Python3 code...
      version('0.22', '1ae25add4ef7b63ee9b4af697300d6b6')
      version('0.21.2', 'd21adb870c75680dc857cd05d41046a4')
  
      @property
      def command(self):
          """Returns the Cython command"""
          return Executable(self.prefix.bin.cython)
  
subject: update (#8005)