Python Script to Keep Windows Alive

import time

import ctypes

from datetime import datetime

# Win32 API key event codes

KEYEVENTF_KEYUP = 0x0002

VK_SHIFT = 0x10 # Virtual-key code for SHIFT key

def press_key(vk_code):

# Press key down

ctypes.windll.user32.keybd_event(vk_code, 0, 0, 0)

time.sleep(0.05)

# Release key

ctypes.windll.user32.keybd_event(vk_code, 0, KEYEVENTF_KEYUP, 0)

if __name__ == "__main__":

runtime_hours = 9

runtime_seconds = runtime_hours * 60 * 60

start_time = time.time()

end_time = start_time + runtime_seconds

# Print planned stop time

print(f"Keep-alive script running for {runtime_hours} hours.")

stop_time_str = datetime.fromtimestamp(end_time).strftime("%Y-%m-%d %H:%M:%S")

print(f"Will stop at: {stop_time_str}\n")

while True:

press_key(VK_SHIFT) # simulate pressing SHIFT

now_str = datetime.now().strftime("%Y-%m-%d %H:%M:%S")

print(f"[{now_str}] Pressed SHIFT to keep system awake")

time.sleep(60) # wait 60 seconds

if time.time() >= end_time:

print("9 hours completed. Exiting...")

break

Python