I can confirm this error on Linux Lite 3.0 (Ubuntu 16.04 base):
jerry@jerry-vb-32:~$ software-properties-gtk
/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py:40: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_version('Gdk', '3.0') before import to ensure that the right version gets loaded.
from gi.repository import GObject, Gdk, Gtk, Gio, GLib
/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py:40: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_version('Gtk', '3.0') before import to ensure that the right version gets loaded.
from gi.repository import GObject, Gdk, Gtk, Gio, GLib
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
jerry@jerry-vb-32:~$
I can confirm this error on Linux Lite 3.0 (Ubuntu 16.04 base):
jerry@jerry- vb-32:~ $ software- properties- gtk python3/ dist-packages/ softwarepropert ies/gtk/ SoftwarePropert iesGtk. py:40: PyGIWarning: Gdk was imported without specifying a version first. Use gi.require_ version( 'Gdk', '3.0') before import to ensure that the right version gets loaded. python3/ dist-packages/ softwarepropert ies/gtk/ SoftwarePropert iesGtk. py:40: PyGIWarning: Gtk was imported without specifying a version first. Use gi.require_ version( 'Gtk', '3.0') before import to ensure that the right version gets loaded. vb-32:~ $
/usr/lib/
from gi.repository import GObject, Gdk, Gtk, Gio, GLib
/usr/lib/
from gi.repository import GObject, Gdk, Gtk, Gio, GLib
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
jerry@jerry-