mint-ctrl-alt-backspace

#!/usr/bin/python3

import gi
gi.require_version('Gio', '2.0')
from gi.repository import Gio
import os

TERMINATE_STR = "terminate\tterminate:ctrl_alt_bksp"

try:
    desktop = os.environ["XDG_CURRENT_DESKTOP"]

    if desktop == "X-Cinnamon":
        settings = Gio.Settings(schema_id="org.gnome.libgnomekbd.keyboard")
    elif desktop == "MATE":
        settings = Gio.Settings(schema_id="org.mate.peripherals-keyboard-xkb.kbd")
    elif desktop == "XFCE":
        os.system("setxkbmap -option terminate:ctrl_alt_bksp")
        exit(0)

    opts = settings.get_strv("options")

    if TERMINATE_STR in opts:
        exit(0)

    opts.append(TERMINATE_STR)
    settings.set_strv("options", opts)
    settings.sync()
except Exception as e:
    print("setting xkbmap for ctrl-alt-backspace failed")

exit(0)