old_contents: #!/usr/bin/env python
  #    This is a component of emc
  #    Copyright 2007 Anders Wallin <anders.wallin@helsinki.fi>
  #
  #    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  import sys, os
  BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
  sys.path.insert(0, os.path.join(BASE, "lib", "python"))
  
  import vcpparse
  import hal
  from Tkinter import Tk
  
  def main():
   
      try:
          filename=sys.argv[1]
      except:
          print "Error: No XML file specified!"
          sys.exit()
      pyvcp0 = Tk()
      vcpparse.filename=filename
      pycomp=vcpparse.create_vcp(pyvcp0)
      pycomp.ready()
      pyvcp0.mainloop()
  
  
  main()
  
new_contents: #!/usr/bin/env python
  #    This is a component of emc
  #    Copyright 2007 Anders Wallin <anders.wallin@helsinki.fi>
  #
  #    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  
  import sys, os
  BASE = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), ".."))
  sys.path.insert(0, os.path.join(BASE, "lib", "python"))
  
  import vcpparse
  import hal
  from Tkinter import Tk
  
  def main():
   
      try:
          filename=sys.argv[1]
      except:
          print "Error: No XML file specified!"
          sys.exit()
      pyvcp0 = Tk()
      vcpparse.filename=filename
      pycomp=vcpparse.create_vcp(pyvcp0)
      pycomp.ready()
      try: 
          pyvcp0.mainloop()
      except KeyboardInterrupt:
          sys.exit(0)
  
  
  main()
  
subject: exit gracefully on KeyboardInterrupt this happens when pyvcp is called from a halrun script and the user types 'exit' at the halcmd prompt