def _function(self, fromDate, toDate):

sql = "select * from \

(select (sum(aml.credit)-sum(aml.debit)) as s,rp.name \

from account_move_line as aml \

join res_partner as rp on aml.partner_id=rp.id \

where aml.account_id=200 and aml.date BETWEEN \'%s\' AND \'%s\' \

group by rp.name order by s desc) as f " %(fromDate, toDate)

self.cr.execute(sql)

return self.cr.fetchall()

report.rml:

    <blockTable colWidths="181.0,216.0" style="Table36">

<tr>

<td>

<para style="P8">[[ repeatIn(function(data['form']['fromDate'], data['form']['toDate']),'ol') ]]</para>

<para style="P9">[[ol[0] ]]</para>

</td>

<td>

<para style="P9">[[ol[1] ]]</para>

</td>

</tr>

</blockTable> 

How do I fix this error code؟؟؟؟؟؟؟؟؟