code: def set_value(self, treeiter, column, value):
          
  
          value = self._convert_value(column, value)
          Gtk.ListStore.set_value(self, treeiter, column, value)
docs: {{ all }}
  
          `value` can also be a Python value and will be converted to a
          :obj:`GObject.Value` using the corresponding column type (See
          :obj:`Gtk.ListStore.set_column_types`\\()).