Tornado high concurrency processing method example code

#!/bin/env python
# -*- coding:utf-8 -*-
import 
import 
import 
import 

import 
from  import run_on_executor
from  import ThreadPoolExecutor
import time
from  import define, options
define("port", default=8000, help="run on the given port", type=int)


class SleepHandler():
  executor = ThreadPoolExecutor(2)

  @
  @
  def get(self):
    # If you perform an asynchrony that returns a value to be called again, you can do this (just for demonstration purposes), otherwise you can just field it.
    res = yield ()
    ("when i sleep %s s" % res)
    ()

  @run_on_executor
  def sleep(self):
    (5)
    return 5


class JustNowHandler():
  def get(self):
    ("i hope just now see you")


if __name__ == "__main__":
  .parse_command_line()
  app = (handlers=[
      (r"/sleep", SleepHandler), (r"/justnow", JustNowHandler)])
  http_server = (app)
  http_server.listen()
  ().start()