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 Xwidgets(CMakePackage):
      """A C++ backend for Jupyter interactive widgets"""
  
      homepage = "https://github.com/jupyter-xeus/xwidgets"
      url      = "https://github.com/jupyter-xeus/xwidgets/archive/0.25.0.tar.gz"
      git      = "https://github.com/jupyter-xeus/xwidgets.git"
  
      maintainers = ['tomstitt']
  
      version('master', branch='master')
      version('0.25.0', sha256='7b6d36999e3b926c40389167c48b33f234a075365f089f89571b33a160421d8e')
  
      depends_on('xtl@0.7.0:0.7.999', when='@0.25.0:')
      depends_on('xproperty@0.11.0:0.11.999', when='@0.25.0:')
      depends_on('xeus@1.0:1.999', when='@0.25.0:')
      depends_on('nlohmann-json@3.6.1:3.999.999', when='@0.25.0:')
  
subject: add new package (#25237)