import gi
import os
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

resource_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'res')
ui_file = os.path.join(resource_dir, 'ui.glade')

builder = Gtk.Builder()
builder.add_from_file(ui_file)

main_win = builder.get_object('main_window')
main_win.connect("destroy", Gtk.main_quit)
main_win.show_all()
Gtk.main()