Qweb report : Error to render compiling AST, Memory error

Question

While print a custom qweb report i am getting following error in odoo 10

Error to render compiling AST
MemoryError: 
Template: report.html_container
Path: /templates/t/t[2]/t
Node: <t t-raw="0"/>

I am sending 2 lists and 1 dictionary to xml.my code

<t t-foreach="qlty" t-as="q">
     <t t-foreach="qlty_des" t-as="qld">
          <t t-foreach="val" t-as="prd">
                 <tr style="border:1px solid black;">
                    <t t-if="prd['quality'] == q">
                           <t t-if="prd['quality'] == qld[0]">
                                <t t-if="prd['design'] == qld[1]">
                                  <td width="16%"  class="text-center">
                                           <span t-esc="prd['size']" />
                                  </td>
                                                              
                                  <td width="16%"  class="text-center">
                                       <span t-esc="prd['bs_col']" />
                                  </td>
                                                              
                                  <td width="16%"  class="text-center">
                                      <span t-esc="prd['brd_col']" />
                                  </td>
                                                              
                                  <td width="15%"  class="text-center">
                                      <span t-esc="prd['quantity']" />
                                  <t t-set="quantity" t-value="quantity + prd['quantity']" />
                                  /td>
                                                              
                                    <td width="15%"  class="text-center">
                                                            
                                       <span t-esc="prd['area']" />
                                    <t t-set="area" t-value="area + prd['area']" />
                                                               
                                   </td>
                                                              
                                                              
                             </t><!-- end of "prd['design'] == qld[1]-->  
                       </t><!-- end of "prd['quality'] == qld[0]-->   
                    </t> <!-- end of prd['quality'] == q"-->
                                                    
               </tr>
         </t>
        </t>
        <t t-set="ql_count" t-value="0"/> 
     </t>

this code works fine for less no of records print.but when no of records increases, my system hangs and the above error occurs. please suggest how to resolve it

Look Like the Issue in your Looping. You have 3 loop iterate and while you have max record to print it can not be fulfilled with logic some mismatch [data & condition] obtain and report to print stop. — Dipen Shah

Saumil gauswami Saumil gauswami · Accepted Answer · 2020-07-04T08:51:20

Memmory error occurs means you have that your program somehow creates too many objects.

Please optimize your python code , your variable contains too much data to handle.

Another solution is upon your system's (32 or 64 bit.), but personally I think you need to optimize your python code.

Qweb report : Error to render compiling AST, Memory error

1 Answers