How Can I Divide Work Read From A File To Threads?

I have a list of hosts and a list of ports. I want to run X threads that will grab a single host every time and try to connect to these ports. I got the connection part covered, my

Solution 1:

ThreadPoolExecutor.

import concurrent.futures

MAX_THREAD_COUNT = 10defread_text_file(filename):
    withopen(filename, "r") as f:
        return f.read().splitlines()


defcheck_port(host, port):
    pass


hosts = read_text_file("hostList.txt")
ports = read_text_file("portList.txt")


with concurrent.futures.ThreadPoolExecutor(max_workers=MAX_THREAD_COUNT) as executor:
    results = {}
    for host in hosts:
        for port in ports:
            results[executor.submit(check_port, host, port)] = "{}:{}".format(host, port)

for result in concurrent.futures.as_completed(results):
    host_and_port = results[result]
    try:
        returned_data = result.result()
    except Exception as e:
        print("\"{}\" exception have been caused while checking {}".format(e, host_and_port))
    else:
        print("Checking of {} returned {}".format(host_and_port, returned_data))

P.S. Code could be not 100% correct, I've not checked it "in action".