'Return a box with a Description label left of an entry.'

def create_description_box(self):

    description_box = Gtk.Box(spacing=6)
    description_label = Gtk.Label()
    description_label.set_text('Description:    ')
    self.description_entry = Gtk.Entry()
    description_box.pack_start(description_label, False, False, 10)
    description_box.pack_end(self.description_entry, True, True, 10)
    return description_box
