old_contents: #! /usr/bin/env python
  #  -*- coding: iso-8859-1 -*-
  # Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
  #
  # This library 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; either
  # version 2.1 of the License, or (at your option) any later version.
  #
  # This library 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
  # Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this library; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  #
  # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  #
  
  import os, re
  
  # -----------------------------------------------------------------------------
  
  def set_env( args ):
      """Add environment required for GUI module"""
      vtk_overloads_dir = os.path.join( os.getenv( "GUI_ROOT_DIR" ), "lib", "paraview" )
      dirs = re.split( ":|;", os.getenv( 'VTK_AUTOLOAD_PATH', vtk_overloads_dir ) )
      if vtk_overloads_dir not in dirs: dirs[0:0] = [vtk_overloads_dir]
      os.environ['VTK_AUTOLOAD_PATH'] = os.pathsep.join(dirs)
      return
  
  
  
new_contents: #! /usr/bin/env python
  #  -*- coding: iso-8859-1 -*-
  # Copyright (C) 2007-2015  CEA/DEN, EDF R&D, OPEN CASCADE
  #
  # This library 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; either
  # version 2.1 of the License, or (at your option) any later version.
  #
  # This library 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
  # Lesser General Public License for more details.
  #
  # You should have received a copy of the GNU Lesser General Public
  # License along with this library; if not, write to the Free Software
  # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  #
  # See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  #
  
  import os, re
  
  # -----------------------------------------------------------------------------
  
  def set_env( args ):
      """Add environment required for GUI module"""
      vtk_overloads_dir = os.path.join( os.getenv( "GUI_ROOT_DIR" ), "lib", "paraview" )
      dirs = re.split( ":|;", os.getenv( 'VTK_AUTOLOAD_PATH', vtk_overloads_dir ) )
      if vtk_overloads_dir not in dirs: dirs[0:0] = [vtk_overloads_dir]
      os.environ['VTK_AUTOLOAD_PATH'] = os.pathsep.join(dirs)
      os.environ['QT_PLUGIN_PATH'] = ''
      return
  
  
  
subject: Solve problem with probably incorrect set QT_PLUGIN_PATH environment variable.