first_example.py

import threading
from time import perf_counter, sleep, time


# Timing function
def timeit(func):
    start = perf_counter()
    func()
    print(f"{func.__name__} took {perf_counter()-start}")


def task():
    sleep(5)


def run_tasks_synchronous(times=5):
    for _ in range(times):
        task()


def run_tasks_threaded(times=5):
    threads = []

    # Create and start threads
    for _ in range(times):
        t = threading.Thread(target=task)
        threads.append(t)
        t.start()

    # Wait all to finish
    for t in threads:
        t.join()


timeit(task)
timeit(run_tasks_synchronous)
timeit(run_tasks_threaded)