test.py

import time
import concurrent.futures


def worker(n):
    time.sleep(n)
    return 42


with concurrent.futures.ThreadPoolExecutor() as extor:
    future = extor.submit(worker, 3)
    t0 = time.time()
    result = future.result(timeout=1.0)
    t1 = time.time()
    print('dt={}'.format(t1-t0))