new_contents: #!/usr/bin/env python
  #coding=utf-8
  import tornado.httpserver
  import tornado.ioloop
  import tornado.options
  import tornado.web
  
  from tornado.options import define, options
  define("port", default=8000, help="run on the given port", type=int)
  
  class IndexHandler(tornado.web.RequestHandler):
      def get(self):
          greeting = self.get_argument('greeting', 'Hello')
          self.write(greeting + ', friendly user!')
  
  if __name__ == "__main__":
      tornado.options.parse_command_line()
      app = tornado.web.Application(handlers=[(r"/", IndexHandler)])
      http_server = tornado.httpserver.HTTPServer(app)
      http_server.listen(options.port)
      tornado.ioloop.IOLoop.instance().start()
  
subject: add template