How to capture a command prompt window close event in python

Question

I want to capture command window close event from Python.
In other words, when the user tries to close the command prompt window, script should detect it and display a message like Do you really want to exit - Yes/No

Any suggestions about how to implement this? Please help me in doing this.

Answer 1

define like this:

import time

def on_exit(sig, func=None):
    print("exit handler")
    time.sleep(10)  # so you can see the message before program exits

• Windows:

if you install pywin32 package, you can :

import win32api
win32api.SetConsoleCtrlHandler(on_exit, True)

• Un*x:

Or, using python internal "signal" library, if you are using under *nix system:

import signal
signal.signal(signal.SIGTERM, on_exit)