python-gi fixes

mugshot/CameraMugshotDialog.py

@@ -22,6 +22,7 @@ import logging
 logger = logging.getLogger('mugshot')
 
 from gi.repository import Gtk, GObject, Gst, GdkPixbuf
+from gi.repository import GdkX11, GstVideo  # lint:ok
 import cairo
 
 import tempfile

mugshot/MugshotWindow.py

@@ -133,7 +133,8 @@ def get_confirmation_dialog(parent, primary_message, secondary_message,
                                                                 icon_name=None):
     """Display a confirmation (yes/no) dialog configured with primary and
     secondary messages, as well as a custom icon if requested."""
-    dialog = Gtk.MessageDialog(parent, flags=0, type=Gtk.MessageType.QUESTION,
+    dialog = Gtk.MessageDialog(transient_for=parent, flags=0,
+                               type=Gtk.MessageType.QUESTION,
                                buttons=Gtk.ButtonsType.YES_NO,
                                message_format=primary_message)
     dialog.format_secondary_text(secondary_message)

mugshot_lib/Window.py

@@ -64,7 +64,7 @@ class Window(Gtk.Window):
         self.CameraDialog = None  # class
         self.camera_dialog = None  # instance
 
-        self.settings = Gio.Settings("apps.mugshot")
+        self.settings = Gio.Settings.new("apps.mugshot")
         self.settings.connect('changed', self.on_preferences_changed)
 
     def on_help_activate(self, widget, data=None):