# main script
import os
import cv2
import time
from other_script import *

if __name__ == "__main__":
    while True:
        if some_event_triggered:
            directory = "." + time.strftime("\%Y-%m-%dT%H%M%S%z")
            if not os.path.isdir(directory):
                os.mkdir(directory)

            # assuming images are given
            for num, img in enumerate(images):
                name_of_file = directory + "\img_num" + str(num) + ".jpg"
                cv2.imwrite(name_of_file, img)

             do_work(timestamp) # call do_work for this directory but continue 'listening' for a new event trigger

# other_script.py
import os

def do_work(timestamp):
    directory = os.path.join(os.getcwd(), + timestamp)
    # do some work on that directory