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


class Handler:
    def onDestroy(self, *args):
        Gtk.main_quit()

    def onButtonPressed(self, button):
        print("Hello World!")

    def upgrade(self, button):
        os.system(
            "gnome-terminal -- /bin/bash -c \"sudo dpkg --configure -a; sudo apt-get update; sudo apt-get upgrade;"
            "sudo apt-get dist-upgrade; sudo apt-get autoremove; sudo apt purge `dpkg --list | grep ^rc | awk '{ print $2; }'`; "
            "sleep 3; exit; exec bash\"")


builder = Gtk.Builder()
builder.add_from_file("makis2.glade")
builder.connect_signals(Handler())

window = builder.get_object("main_window")
window.show_all()

Gtk.main()