Miscellany

           <metal:block>
            <th>Tipo Usuário</th>
              <td><select name="descricao_usuario">
                    <option tal:repeat="items consulta_tipo" 
                             tal:attributes="value items/tu_id;
                                             selected python:(request.get('descricao_usuario','') == str(items['tu_id']) and 'selected');" 
                             tal:content="items/tu_descricao">Descricao</option>
                  </select>
              </td>
            </metal:block>