title: Call a script from another script Python3
body: <p>I have 1 script that uses openCV to recognize a face in an image which inn the end it displays it via cv2.imshow</p>
  
  <p>the script uses <code>argparse</code> to call several arguments into it:
  <code>python3 recognize.py --x x --y y --z z</code></p>
  
  <p>I wanted to keep calling that same script on itself, using <code>subprocess.call(python3 recognize.py --x x --y y --z z', shell = True)</code> the image won't disappear once displayed</p>
  
  <p><code>cv2.waitKey(0)</code> and other variations(press X key to close windows, and <code>cv2.deleteAllWindows()</code>) doesn't do the trick either</p>
  
  <p>what should i do?</p>