Multiprocessing : use tqdm to display a progress bar

Question

To make my code more \"pythonic\" and faster, I use \"multiprocessing\" and a map function to send it a) the function and b) the range of iterations.

The implanted s

Answer 1

Use imap instead of map, which returns an iterator of processed values.

from multiprocessing import Pool
import tqdm
import time

def _foo(my_number):
   square = my_number * my_number
   time.sleep(1)
   return square 

if __name__ == '__main__':
   with Pool(2) as p:
      r = list(tqdm.tqdm(p.imap(_foo, range(30)), total=30))