Detect user logout / shutdown in Python / GTK under Linux - SIGTERM/HUP not received

Question

OK this is presumably a hard one, I\'ve got an pyGTK application that has random crashes due to X Window errors that I can\'t catch/control.

So I created a wrapper t

Answer 1

You forgot to close gtk's event loop.

This code exits with code 0 when you close the window:

import gtk

class Test(gtk.Window):
    def destroy_event(self, widget, data=None):
        gtk.main_quit()

    def __init__(self):
        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
        self.connect("destroy", self.destroy_event)
        self.show()

f = Test()
gtk.main()

---

EDIT: Here's the code to catch the SIGTERM signal:

import signal

def handler(signum, frame):
    print 'Signal handler called with signal', signum
    print 'Finalizing main loop'
    gtk.main_quit()

signal.signal(signal.SIGTERM, handler)

The rest of the code is exactly as above, no changes. It works here when I send SIGTERM to the python process: gtk main loop ends and program exits with exit code 0.