> What is wrong with that code ? I´m trying to pass a variable EdtCodigo > as a parameter in expression: > <dtml-call > expr="RESPONSE.redirect('02_contratos_altera?codigo=<dtml-var > EdtCodigo>')"> You are using DTML inside Python expression. try <dtml-call expr="RESPONSE.redirect('02_contratos_altera?codigo=%s)' % _['EdtCodigo']">