old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  #       sans titre.py
  #       
  #       Copyright 2010 nicolas <nicolas@NicolasDesktop>
  #       
  #       This program is free software; you can redistribute it and/or modify
  #       it under the terms of the GNU General Public License as published by
  #       the Free Software Foundation; either version 2 of the License, or
  #       (at your option) any later version.
  #       
  #       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
  #       GNU General Public License for more details.
  #       
  #       You should have received a copy of the GNU General Public License
  #       along with this program; if not, write to the Free Software
  #       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  #       MA 02110-1301, USA.
  
  from .backend import BPBackend
  
  __all__ = ['BPBackend']
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  #       sans titre.py
  #
  #       Copyright 2010 nicolas <nicolas@NicolasDesktop>
  #
  #       This program is free software; you can redistribute it and/or modify
  #       it under the terms of the GNU General Public License as published by
  #       the Free Software Foundation; either version 3 of the License, or
  #       (at your option) any later version.
  #
  #       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
  #       GNU General Public License for more details.
  #
  #       You should have received a copy of the GNU General Public License
  #       along with this program; if not, write to the Free Software
  #       Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  #       MA 02110-1301, USA.
  
  from .backend import BPBackend
  
  __all__ = ['BPBackend']
  
subject: change file licence from GPLv2 to GPLv3