Executing long-running synchronous functions in asyncio executor

import time
import asyncio

from functools import partial
from asyncio import coroutine
from concurrent import futures


def do_something(sleeping):
    time.sleep(sleeping)
    print("sleeping: ", sleeping)
    return sleeping


def main():
    loop = asyncio.new_event_loop()
    futs = []
    try:
        with futures.ProcessPoolExecutor(max_workers=10) as executor:
            for i in range(10):
                part = partial(do_something, i)
                future = loop.run_in_executor(executor, part)
                futs.append(future)

        fut = asyncio.gather(*futs)
        result = loop.run_until_complete(fut)
        print(result)

    finally:
        loop.close()


if __name__ == '__main__':
    main()