The answers above are still using the old Python 3.4 style coroutines. Here is what you would write if you got Python 3.5+.
aiohttp supports http proxy now
import aiohttp import asyncio async def fetch(session, url): async with session.get(url) as response: return await response.text() async def main(): urls = [ 'http://python.org', 'https://google.com', 'http://yifei.me' ] tasks = [] async with aiohttp.ClientSession() as session: for url in urls: tasks.append(fetch(session, url)) htmls = await asyncio.gather(*tasks) for html in htmls: print(html[:100]) if __name__ == '__main__': loop = asyncio.get_event_loop() loop.run_until_complete(main())