Tornado + Asyncio

gistfile1.py

from tornado.platform.asyncio import AsyncIOMainLoop
import asyncio
import tornado
import tornado.web
import tornado.gen
from inspect import isgeneratorfunction, isgenerator


AsyncIOMainLoop().install()
loop = asyncio.get_event_loop()



def test_asyncio():

    future = tornado.gen.Future()

    @asyncio.coroutine
    def set_result():
        yield from asyncio.sleep(1)
        future.set_result(42)
    asyncio.Task(set_result())

    return future


class MainHandler(tornado.web.RequestHandler):

    @tornado.gen.coroutine
    def get(self):
        result = yield test_asyncio()
        self.write('Result is {0}'.format(result))


class SecondHandler(tornado.web.RequestHandler):

    @tornado.gen.coroutine
    def get(self):
        self.write('Result is 43')


application = tornado.web.Application([
    (r"/", MainHandler),
    (r"/sync", SecondHandler)
])


if __name__ == '__main__':
    application.listen(8888)
    try:
        loop.run_forever()
    finally:
        loop.close()