Notification after shut down on windows using python

Question

I want to create a function that displays a message for the user when windows start again after a shutdown.

It is used together with the shutdown command shutdown \s \hybrid

Heres my attempt with the help of AI

import os


def leave_message_on_startup(message):
    script_content = f"""
import pymsgbox

message = "{message}"
pymsgbox.alert(message, "Startup Message")
"""

    dirname = os.path.dirname
    script_path = f"{dirname(dirname(dirname(__file__)))}\\temp\\DisplayMessageOnStartup.pyw"
    os.makedirs("temp", exist_ok=True)
    with open(script_path, "w+") as script_file:
        script_file.write(script_content)

    create_task_command = f'schtasks /create /tn "{task_name}" /tr "py {script_path}" /sc onstart /f'
    os.system(create_task_command)

def trigger_task(task_name):
    trigger_task_command = f'schtasks /run /tn "{task_name}"'
    os.system(trigger_task_command)


task_name = "DisplayMessageOnStartup"
message = "Sample message"
leave_message_on_startup(message)
trigger_task(task_name)

After running the code, I double-clicked on the created script in File Explorer and it worked.

Even though the script creation was successful, the task creation seems to have failed.

I can't find the problem.

Please enlighten me on ways to achieve notifications after windows shutdown.

Answer 1

Schtasks is assuming that Python is in %systemroot%\System32 (C:\Windows\System32).

Replace py with the full path to Python.