<p>与lib一起请求的Lukasa说:</p>
<blockquote>
<p>At the current time there are no plans to support async and await. This is not because they aren't a good idea: they are. It's because to use them requires quite substantial code changes.
Right now requests is a purely synchronous library that, at the bottom of its stack, uses <code>httplib</code> to send and receive data. We cannot move to an async model unless we replace httplib. The best we could do is provide a shorthand to run a request in a thread, but asyncio already has just such a shorthand, so I don't believe it would be valuable.
Right now I am quietly looking at whether we can rewrite requests to work just as well in a synchronous environment as in an async one. However, the reality is that doing so will be a lot of work, involving rewriting a lot of our stack, and may not happen for many years, if ever.</p>
</blockquote>
<p>但别担心<code>aiohttp</code>与请求非常相似。</p>
<p>这里有一个例子。</p>
<pre><code>import aiohttp
import asyncio
async def fetch(session, url):
async with session.get(url) as response:
return await response.text()
async def main():
async with aiohttp.ClientSession() as session:
html = await fetch(session, 'http://python.org')
print(html)
if __name__ == '__main__':
loop = asyncio.get_event_loop()
loop.run_until_complete(main())
</code></pre>