sequential.py

import time

# A CPU heavy calculation, just
# as an example. This can be
# anything you like
def heavy(n, myid):
    for x in range(1, n):
        for y in range(1, n):
            x**y
    print(myid, "is done")

def sequential(n):
    for i in range(n):    
        heavy(500, i)

if __name__ == "__main__":
    start = time.time()
    sequential(80)
    end = time.time()
    print("Took: ", end - start)

# On my system, this takes
# about 46 seconds.