How change format display a field in qweb report?

function in python file:

def _get_name(self,partner_id):

    sql = """ select name as name1 from res_partner
                    where id=%s """ %(partner_id)
    self.env.cr.execute(sql)
    return self.env.cr.dictfetchone()

template xml:

            <span t-esc="get_name(partner_id)"/>

output pdf report:

    {'name1': mosao}

I want just display: mosao

please help me.