new_contents: # -*- coding: utf-8 -*-
  # osascript -e 'tell app "System Events" to display dialog "Hello World"'
  from os import system
  
  
  def alert(msg):
      cmd = u"osascript -e 'tell app \"System Events\" to display " \
            "alert \"%s\"'" % msg
      system(cmd.encode("utf-8"))
  
subject: add mac.alert