import pyautogui, time

print(‘Press Ctrl-C to quit.‘)
try:
  while True:
    time.sleep(10)
    pyautogui.moveRel(1, 0, duration=0.25)
    time.sleep(10)
    pyautogui.moveRel(-1, 0, duration=0.25)
except KeyboardInterrupt:
  print(‘\nDone.‘)