from multiprocessing import Process, Queue, Pool
import datetime
def carre(nb):
temp=nb*nb
print (datetime.datetime.now())
print (temp)
nb_thread=3
pool = Pool(processes=nb_thread)
print ("Nombre de thead : "+str(nb_thread))
list_nb=[3,8,10,44,90,32,76]
print("start exe : "+str(datetime.datetime.now()))
get_carre=pool.map(carre, list_nb)