threading_example.py

#!/usr/bin/env python3

import os
import threading
import time

TIME_TO_SLEEP       = 0.5   # Seconds
NUMBER_OF_THREADS   = 4


## Decorator function that adds timing to other functions
def time_me(function):
	def inner():
		start = time.time()
		function()
		print(f"The code ran in: {time.time()-start} seconds")
	return inner

# Fcuntion to be multithreaded
def threaded_func():
	pid = os.getpid()
	print(f'Running on core: {pid}.')

	for _ in range(10_000_000):
		f = (9_999_999.9 * 944_438_468 + 18_468_468)/9_999.26494
	time.sleep(TIME_TO_SLEEP)

@time_me
def print_with_threads():
	threads_ = []
	for _ in range(NUMBER_OF_THREADS):
		thread = threading.Thread(target = threaded_func)
		threads_.append(thread)
		thread.start()

	for thread_ in threads_:
		thread.join()

@time_me
def print_normal():
	for _ in range(NUMBER_OF_THREADS):
		threaded_func()


print("Going to try normal printing!")
print_normal()

print("Going to try multi-threaded printing!")
print_with_threads()