Python-сообщество

 from multiprocessing import Pool
from datetime import datetime
def main(link):
	global start_time
	global counter
	print(start_time)
	print(link)
	counter += 1
	print(counter)
if __name__ == '__main__':
	global start_time
	global counter
	counter = 0
	start_time = datetime.now()
	links = [1,2,3]
	m = 3
	pool = Pool(m)
	pool.map(main, links)
	pool.close()
	pool.join()

 from multiprocessing import Pool, Value
from datetime import datetime
counter = None
start_time = None
def init(cntr, start_t):
    #инициализатор для каждого процесса
    global counter
    global start_time
    counter = cntr
    start_time = start_t
def main(link):
    with counter.get_lock():
        counter.value += 1
    print(counter.value, link, start_time)
if __name__ == '__main__':
    counter = Value('i', 0)
    start_time = datetime.now()
    links = ['a','b','c','d', 'e', 'f']
    m = 3
    with Pool(processes=m, initializer = init, initargs = (counter, start_time)) as pool:
        pool.map(main, links)
        pool.close()
        pool.join()

 from multiprocessing import Pool, Value
from datetime import datetime
def init(func, counter, start_time):
    #инициализатор для каждого процесса
    # передаем счетчик в тупую нашей функции, ведь функция это тоже обьект :)
    func.counter = counter
    func.statr_time = start_time
def main(link):
    counter = main.counter        # вобщем это необязательно, можно просто
    start_time = main.start_time  # писать везде  main.counter или main.start_time
    with counter.get_lock():      # всемсто counter и start_time
        counter.value += 1        #
    print(counter.value, link, start_time)
if __name__ == '__main__':
    counter = Value('i', 0)
    start_time = datetime.now()
    links = ['a','b','c','d', 'e', 'f']
    m = 3
    with Pool(processes=m, initializer = init, initargs = (main, counter, start_time)) as pool:
        pool.map(main, links)
        pool.close()
        pool.join()

 from multiprocessing import Pool, Manager
from datetime import datetime
from itertools import repeat
def main(link, counter, start_time):
    counter.value += 1
    print(counter.value, link, start_time)
if __name__ == '__main__':
    manager = Manager()
    counter = manager.Value('i', 0)
    start_time = datetime.now()
    links = ['a','b','c','d', 'e', 'f']
    m = 3
    with Pool(processes=m) as pool:
        pool.starmap(main, zip(links, repeat(counter), repeat(start_time)))
        pool.close()
        pool.join()

1 a 2019-02-28 12:04:35.360442
2 b 2019-02-28 12:04:35.360442
3 c 2019-02-28 12:04:35.360442
4 d 2019-02-28 12:04:35.360442
5 e 2019-02-28 12:04:35.360442
6 f 2019-02-28 12:04:35.360442

 from multiprocessing import Pool, Manager
from itertools import repeat
import time
def main(link, counter):
    print(time.strftime('%H:%M:%S', time.localtime()), link, ' - start process' )
    if link%3==0:
        time.sleep(1)
    elif link%2==0:
        time.sleep(3)
    else:
        time.sleep(7)
    counter.value += 1
    print(time.strftime('%H:%M:%S', time.localtime()), link, ' - end process' )
if __name__ == '__main__':
    manager = Manager()
    counter = manager.Value('i', 0)
    links = [1, 2, 3, 4, 5, 6, 7, 8]
    m = 3
    with Pool(processes=m) as pool:
        pool.starmap(main, zip(links, repeat(counter)))
        pool.close()
        pool.join()
>>>
21:48:12 1  - start process
21:48:12 2  - start process
21:48:12 3  - start process
21:48:13 3  - end process
21:48:13 4  - start process
21:48:15 2  - end process
21:48:15 5  - start process
21:48:16 4  - end process
21:48:16 6  - start process
21:48:17 6  - end process
21:48:17 7  - start process
21:48:19 1  - end process
21:48:19 8  - start process
21:48:22 8  - end process
21:48:22 5  - end process
21:48:24 7  - end process
>>>