Invoking the lock screen using python

Question

How can I bring up the lock screen from within a python app? I would like the application to do that for me instead of pressing the Ctrl-Alt-L separately.

Answer 1

For Ubuntu:

os.popen('gnome-screensaver-command --lock')

(Source)

For Windows:

import ctypes
ctypes.windll.user32.LockWorkStation()

(Source)