C02VQ1S6HTDD:python_multithreading nsiddiq$ time ./parallel_sleep.py
Starting thread 0
Starting thread 1
Starting thread 2
Starting thread 3
Starting thread 4
Exiting thread 0
Exiting thread 3
Exiting thread 1
Exiting thread 2
Exiting thread 4
real 0m1.068s
user 0m0.019s
sys 0m0.044s