Bluebird's Promise.map in python

example.py

'''Debugging: https://docs.python.org/3/library/asyncio-dev.html#asyncio-dev'''
def fetch_urls_concurrent(urls):
    loop = asyncio.new_event_loop()
    resp_list = []

    async def async_req_urls():
        '''Change max workers for concurrency'''
        with concurrent.futures.ThreadPoolExecutor(max_workers=20) as executor:
            futures = []

            for url in urls:
                futures.append(loop.run_in_executor(
                        executor,
                        fetch_url,
                        url
                    )
                )

            for response in await asyncio.gather( * futures):
                resp_list.append(response)

    loop.run_until_complete(async_req_urls())
    loop.close()

    return resp_list