old_contents: #!/usr/bin/env python3
  #
  # Copyright (c) 2016, Roberto Riggio
  # All rights reserved.
  #
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #    * Redistributions of source code must retain the above copyright
  #      notice, this list of conditions and the following disclaimer.
  #    * Redistributions in binary form must reproduce the above copyright
  #      notice, this list of conditions and the following disclaimer in the
  #      documentation and/or other materials provided with the distribution.
  #    * Neither the name of the CREATE-NET nor the
  #      names of its contributors may be used to endorse or promote products
  #      derived from this software without specific prior written permission.
  #
  # THIS SOFTWARE IS PROVIDED BY CREATE-NET ''AS IS'' AND ANY
  # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  # DISCLAIMED. IN NO EVENT SHALL CREATE-NET BE LIABLE FOR ANY
  # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  from distutils.core import setup
  
  setup(name="empower-controller",
        version="1.0",
        description="EmPOWER Controller",
        author="Roberto Riggio",
        author_email="roberto.riggio@create-net.org",
        url="https://github.com/rriggio/empower",
        long_description="EmPOWER is an SDN/NFV framework for Enterprise WLANs",
        packages=['empower'],
        )
  
new_contents: #!/usr/bin/env python3
  #
  # Copyright (c) 2016 Roberto Riggio
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing,
  # software distributed under the License is distributed on an
  # "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  # KIND, either express or implied. See the License for the
  # specific language governing permissions and limitations
  # under the License.
  
  """Setup script."""
  
  from distutils.core import setup
  
  setup(name="empower-controller",
        version="1.0",
        description="EmPOWER Controller",
        author="Roberto Riggio",
        author_email="roberto.riggio@create-net.org",
        url="https://github.com/rriggio/empower",
        long_description="EmPOWER is an SDN/NFV framework for Enterprise WLANs",
        packages=['empower'])
  
subject: update the first header file