threads.py

import threading
import time

def calc_square(numbers):
	print("calculate square numbers")
	for n in numbers:
		time.sleep(0.2)
		print('square', n*n)

def calc_cube(numbers):
	print("calculate cube numbers")
	for n in numbers:
		time.sleep(0.2)
		print('cube', n*n)

arr = [2, 3, 8, 9]

t = time.time()
calc_square(arr)
calc_cube(arr)

print("done in: ", time.time() - t )
print("Hah.. I am done with all my works now!")