diff --git a/src/usbinstall.py b/src/usbinstall.py
index 44494ee..d90b1b8 100755
--- a/src/usbinstall.py
+++ b/src/usbinstall.py
@@ -1,7 +1,8 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 # -*- coding: utf-8 -*-
 
 # Copyright 2011 michiamophil (openmamba user :-)
+# Copyright 2011-2020 Silvan Calarco
 # ChangeLog:
 #	(michiamophil on 11/11/11) Rewrited all the graphic code and removed gui.py
 
@@ -10,12 +11,12 @@ from PyQt4 import QtGui, QtCore
 from subprocess import Popen
 import signal
 import gettext	# To translate
-import gobject
+from gi.repository import GLib
 import dbus
 import dbus.service
 from dbus.mainloop.glib import DBusGMainLoop
-if getattr(dbus, 'version', (0,0,0)) >= (0,41,0):
-        import dbus.glib
+DBusGMainLoop(set_as_default=True)
+#import dbus.glib
 
 #=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
 #1)-------------------------------(VARIABILI)----------------------------------------
@@ -189,7 +190,7 @@ def go_back():
 	# Step 1 to 0 -> exit
 	if step == 0:
 		app.exit(1)
-		print _("Application terminated by pressing \"cancel\" button")
+		print (_("Application terminated by pressing \"cancel\" button"))
 	# Step 2 to 1
 	elif step == 1:
 		step1()
@@ -202,7 +203,7 @@ def choose_file():
 	global path_cpio, path_iso, choose_type
 	# if step is 1
 	if choose_type == "iso":
-		nfileName = QtGui.QFileDialog.getOpenFileName(window, _("Choose the iso file"), "/home", "File .iso (*.iso)", "iso *.iso")
+		nfileName = QtGui.QFileDialog.getOpenFileName(window, _("Choose the iso file"), "/home", "File .iso (*.iso)")
 		path_iso = nfileName
 		window.t_file.setText(nfileName)
 
@@ -234,7 +235,7 @@ def get_list():
 	bus = dbus.SystemBus()
 	ud_manager_obj = bus.get_object('org.freedesktop.UDisks2', '/org/freedesktop/UDisks2')
 	ud_manager = dbus.Interface(ud_manager_obj, 'org.freedesktop.DBus.ObjectManager')
-	for k,v in ud_manager.GetManagedObjects().iteritems():
+	for k,v in ud_manager.GetManagedObjects().items():
 		device_block = v.get('org.freedesktop.UDisks2.Block', {})
 		device_partitiontable = v.get('org.freedesktop.UDisks2.PartitionTable', {})
 		device = device_block.get('Device')
@@ -264,7 +265,7 @@ def get_list():
 	if len(a_path_dev) != 0:
 		set_usb(0)
 	else:
-		print _("No usb available > 1 Gb")
+		print (_("No usb available > 1 Gb"))
 
 # Event n°7
 def set_usb(i):
@@ -392,7 +393,7 @@ def end_with_success():
 	msg = QtGui.QMessageBox.information(window, _("Information"), _("Installation process completed"))
 	mainloop.quit()
 	app.exit(0)
-	print _("Installation process completed")
+	print (_("Installation process completed"))
 
 def end_forced():
 	global process_sh, mainloop
@@ -402,9 +403,9 @@ def end_forced():
 
 # Program start
 app = QtGui.QApplication(['usbinstall'])
-gettext.install('usbinstall', '/usr/share/locale', unicode=1)
+gettext.install('usbinstall', '/usr/share/locale', 1)
 window = create_window()
-mainloop = gobject.MainLoop()
+mainloop = GLib.MainLoop()
 
 def run():
 	add_events()