This python threading example demonstrates python threading in compute bound situation.

py_thread_compute_bound.py

import threading
import time as time

def square():
    for i in range(1000000):
        x = pow(i, 2)

if __name__ == "__main__":
    num_iter = 10
    start = time.time()
    for i in range(num_iter):
        square()
    stop = time.time()
    print("non threading time: {:.3f}".format(stop-start))

    start = time.time()
    threads = []
    for i in range(num_iter):
        t = threading.Thread(target=square, args=())
        t.start()
        threads.append(t)

    for t in threads:
        t.join()
    stop = time.time()
    print("threading time: {:.3f}".format(stop-start))