multitoken.py

import time
import concurrent.futures
from itertools import compress 

start = time.perf_counter()

storage = []
tokens = [True] * 2

def get_free_token(tokens):

	idx_tokens = list(compress(range(len(tokens)), tokens))

	if len(idx_tokens) > 0:
		return idx_tokens[0]
	else:
		return None


def do_something(seconds, idx_token):
	print(f'\tsleeping {seconds} seconds using token {idx_token}')
	time.sleep(seconds)
	storage.append(seconds)
	print(f'Done Sleeping in {seconds} using token {idx_token}')
	tokens[idx_token] = True

def submission(executor, num, idx_token):
	print("\tidx token", idx_token, "is used")
	executor.submit(do_something, num, idx_token)


with concurrent.futures.ThreadPoolExecutor() as executor:
	data = [3,1,5,3,1,1]
	for num in data:
		print("tokens status", tokens)
		while True:
			idx_token = get_free_token(tokens)
			if idx_token is not None:
				tokens[idx_token] = False
				status = submission(executor, num, idx_token)
				print("\tafter submission tokens", tokens)
				break

print(storage)

stop = time.perf_counter()

print(f'finished all process in {round(stop-start, 2)} seconds')