Simulate desktop user activity

activity.py

#!/usr/bin/env python

import sys
import pyautogui
from datetime import datetime, timedelta

pyautogui.FAILSAFE = False

def move_rel(dx, dy, dur):
    pyautogui.moveRel(dx, dy, dur, pyautogui.easeInQuad)

def square(side, dur):
    move_rel(side, 0, dur)
    move_rel(0, side, dur)
    move_rel(-side, 0, dur)
    move_rel(0, -side, dur)

def cycle_win():
    pyautogui.keyDown('alt')
    pyautogui.keyDown('shift')
    pyautogui.keyDown('tab')
    pyautogui.keyUp('tab')
    pyautogui.keyUp('shift')
    pyautogui.keyUp('alt')

def activity():
    square(600, 1)
    for _ in range(5):
        cycle_win()

def main():
    dur_min = 1
    if len(sys.argv) >= 2:
        dur_min = int(sys.argv[1])

    until = datetime.now() + timedelta(minutes=dur_min)
    while datetime.now() < until:
        activity()

if __name__ == '__main__':
    main()