Python 3.5 增加了对async def and await的支持，同样的异步代码看起来干净了很多，也更易读。

import aiohttpimport asyncioasync def get_status(url, id):    r = await aiohttp.get(url)    print(r.status, id)    r.close()tasks = []for i in range(100):    tasks.append(asyncio.ensure_future(get_status('https://api.github.com/events', id=i)))if __name__ == '__main__':    loop = asyncio.get_event_loop()    loop.run_until_complete(asyncio.wait(tasks))    loop.close()

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