using pyinotify with GObject-Mainloop

#!/usr/bin/env python3
import sys, gi, signal, pyinotify

gi.require_version('Gst', '1.0')
from gi.repository import Gst, GObject, GLib

# init GObject & Co. before importing local classes
GObject.threads_init()
Gst.init([])

def handle_read_callback(notifier):
	"""
	Just stop receiving IO read events after the first
	iteration (unrealistic example).
	"""
	print('handle_read callback'+str(notifier))

def process_events(source, condition, notifier):
	print('process_events')
	notifier.process_events()
	while notifier.check_events():
		notifier.read_events()
		notifier.process_events()

	return True

def main():
	signal.signal(signal.SIGINT, signal.SIG_DFL)


	wm = pyinotify.WatchManager()
	notifier = pyinotify.Notifier(
		wm,
		timeout=10,
		default_proc_fun=handle_read_callback)

	wm.add_watch('/tmp', pyinotify.ALL_EVENTS)

	GLib.io_add_watch(notifier._fd, GLib.IO_IN, process_events, notifier)

	mainloop = GObject.MainLoop()
	try:
		mainloop.run()
	except KeyboardInterrupt:
		print('Terminated via Ctrl-C')


if __name__ == '__main__':
	main()