old_contents: ##############################################################################
  # Copyright (c) 2013-2017, 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 PyBackportsFunctoolsLruCache(PythonPackage):
      """Backport of functools.lru_cache from Python 3.3"""
  
      homepage = "https://github.com/jaraco/backports.functools_lru_cache"
      url = "https://pypi.io/packages/source/b/backports.functools_lru_cache/backports.functools_lru_cache-1.4.tar.gz"
  
      version('1.4', 'b954e7d5e2ca0f0f66ad2ed12ba800e5')
      version('1.0.1', 'c789ef439d189330b99872746a6d9e85',
              url="https://pypi.io/packages/source/b/backports.functools_lru_cache/backports.functools_lru_cache-1.0.1.zip")
      depends_on('py-setuptools', type='build')
      depends_on('py-setuptools-scm@1.15.0:', type='build')
      depends_on('python@2.6.0:3.3.99',        type=('build', 'run'))
  
new_contents: ##############################################################################
  # Copyright (c) 2013-2017, 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 PyBackportsFunctoolsLruCache(PythonPackage):
      """Backport of functools.lru_cache from Python 3.3"""
  
      homepage = "https://github.com/jaraco/backports.functools_lru_cache"
      url = "https://pypi.io/packages/source/b/backports.functools_lru_cache/backports.functools_lru_cache-1.4.tar.gz"
  
      version('1.4', 'b954e7d5e2ca0f0f66ad2ed12ba800e5',
              url="https://pypi.io/packages/source/b/backports.functools_lru_cache/backports.functools_lru_cache-1.4.tar.gz")
      version('1.0.1', 'c789ef439d189330b99872746a6d9e85',
              url="https://pypi.io/packages/source/b/backports.functools_lru_cache/backports.functools_lru_cache-1.0.1.zip")
      depends_on('py-setuptools', type='build')
      depends_on('py-setuptools-scm@1.15.0:', type='build')
      depends_on('python@2.6.0:3.3.99',        type=('build', 'run'))
  
subject: fix url finding of lru-cache (#7118)