how to returns set of records in PL/python

Hi ,<br /><br />  Iam new to plpython,how can I return a  recordset from a plpython function?<br /><br />  Is there is
anyway give me an example;<br /><br />  <br />plpgsql function <br />--------------------------------<br /><br />CREATE
ORREPLACE FUNCTION function_to_get_all_countries() RETURNS SETOF RECORD AS $BODY$<br /> DECLARE    <br /><br />    r
RECORD;  <br />     <br />BEGIN<br /><br />    FOR r IN SELECT  pk_bint_country_id,vchr_country FROM tbl_country
LOOP<br/>        RETURN NEXT r;<br />        END LOOP;<br />    RETURN;<br /><br />END<br />$BODY$ LANGUAGE
'plpgsql';<br/><br /><br /><br /><br />How i can get the same result using plpythonu and how I can call the function
(isthere any user defined type required like in plpgsql)?<br /><br />Thanks in advance<br /><br />Anoop<br />