text: #!/usr/bin/python3
  ##################################################
  # PyDemos + environment search/config first;
  # run this if you haven't set up your paths yet;
  # you still must install Python first, though;
  #-------------------------------------------------
  # Python 3.3 on Windows hack: needs python3 in #!,
  # else this and Launcher code may use 2.X default
  # if installed, unless PY_PYTHON is set in shell;
  ##################################################
  
  import Launcher
  Launcher.launchBookExamples(['PyDemos.pyw'], trace=False)
  