How to write a list using streams?

Question

Python

hello world.

from time import sleep
from threading import Thread

all_id = [('0',), ('1',), ('2',), ('3',), ('4',), ('5',), ('6',), ('7',)]

def potok(num):
    
    if True:
        
        if num == 1:# ПОТОК 1
            
            for x in all_id:
    
                print(x[0])
        
                sleep(0.5)
                
        elif num == 2:# ПОТОК 2
            
            for x in all_id:
    
                print(x[0])
        
                sleep(0.5)
        
thread1 = Thread(target=potok, args=( 1,))

thread2 = Thread(target=potok, args=( 2,))

thread2.start()

thread1.start()

Result:

The list can have an unlimited number of elements, so I write it in several threads in order to save time. The problem with my code is that it lists several identical elements. It is necessary that each element of the list, registered once. The order is optional.

Answer 1

I think you should first read how threads work in principle, then read how they work in python