Tornado asynchronous Client (future)

List the operational code first, commenting and explaining the next additions.

#-.-Coding:utf-8-.-# __author__ = ' zt ' import tornado.ioloopfrom tornado.concurrent import Futurefrom Tornado.httpclien T import asynchttpclientdef async_fetch_future (URL): http_client = asynchttpclient () My_future = Future () Fetch_f uture = Http_client.fetch (URL) fetch_future.add_done_callback (Lambda F:my_future.set_result (F.result ())) return My_ Futuredef Main (): Return async_fetch_future (' http://www.qq.com '). Running () if __name__ = = ' __main__ ': response = Torn Ado.ioloop.IOLoop.instance (). Run_sync (main) print Response.body

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Tornado asynchronous Client (future)