+ return not self._exec_cmd(cmd)
+
+class Gnome3Changer(BaseChanger):
+ name = "Gnome3"
+ def set_image(self, filename):
+ cmd = ['gsettings', 'set', 'org.gnome.desktop.background', 'picture-uri', 'file://'+filename]
+ logging.debug(cmd)
+ return not self._exec_cmd(cmd)