Async demo python 3.5

async.py

import aiohttp
import asyncio

async def get(index):
    response = await aiohttp.get('http://httpbin.org/delay/%d' % index)
    print(index, "Done")
    response.close()

async def doMany():
    coros = []
    for i in range(5):
        coro = get(i)
        coros.append(coro)
    await asyncio.gather(*coros)

if __name__ == "__main__":
    loop = asyncio.get_event_loop()
    loop.run_until_complete(doMany())

normal.py

import requests

def get(index):
    response = requests.get('http://httpbin.org/delay/%d' % index)
    print(index, "Done")
    response.close()

def doMany():
    for i in range(5):
        get(i)

if __name__ == "__main__":
    doMany()