Merge lp:~tintou/light-locker-settings/light-locker-settings into lp:light-locker-settings

[Corentin Noël]

As it currently fails to launch on focal this fixes issues with python3 not being explicitly used

=== modified file 'debian/rules'
--- debian/rules	2014-03-12 11:22:57 +0000
+++ debian/rules	2020-01-29 09:59:56 +0000
@@ -6,10 +6,10 @@
 DESTDIR := ${CURDIR}/debian/light-locker-settings
 
 %:
-	dh $@ --with python2
+	dh $@ --with python3
 
 override_dh_auto_configure:
-	./configure --prefix=/usr
+	./configure --prefix=/usr --python=python3
 
 override_dh_auto_install:
 	dh_auto_install
 
=== modified file 'light-locker-settings/light-locker-settings.py'
--- light-locker-settings/light-locker-settings.py	2016-05-14 01:24:41 +0000
+++ light-locker-settings/light-locker-settings.py	2020-01-29 09:59:56 +0000
@@ -26,6 +26,7 @@
 import shlex
 import os
 import subprocess
+gi.require_version('Gtk', '3.0')
 from gi.repository import Gtk, GLib, Gio
 
 import psutil