Hi

I suggest to use the following function that

def get_grouped_list(self, seq=[], size=3):
        #get the list with all items grouped
        return [seq[i:i+size] for i in range(0, len(seq), size)]

that takes as parameter a list and goups items in slices with length = size.

>>> def get_grouped_list(seq=[], size=3):
...     return [seq[i:i+size] for i in range(0, len(seq), size)]
...
>>> l = [1,2,3,4,5,6,7,8]
>>> get_grouped_list(l)
[[1, 2, 3], [4, 5, 6], [7, 8]]
>>> get_grouped_list(l, 4)
[[1, 2, 3, 4], [5, 6, 7, 8]]
>>>

Then iterating this is something like:

<tr tal:repeat="slice python:<someobject>.get_grouped_list(yourlist)">
    <td tal:repeat="item slice">
        <span tal:replace="item" />
    </td>
</tr>


Hope this will help.
Dragos


Nicolas Georgakopoulos wrote:
Hello all , I'm trying to display on the same page a table with (3 columns) with content from a list . I'm trying to batch the results so that every 3 elements anothe row is created.
Can anyone give me a clue how to do that ?

this is my code:


<table tal:define="Rnumber python:context.cm1.content.specialfile.getList('link_list') ; batch python:modules['ZTUtils'].Batch(Rnumber,size=3,start=0)">
       <th colspan="3">Main Title</th>
               <tr><th>Title 1</th><th>Title 2</th><th>Title 3</th></tr>
               <tr>
                               <td tal:repeat="num batch">
<span tal:condition="python:num < 3" tal:replace="structure num"> content goes here.. </span>
                   </td>
               </tr>                                     <!--  <tr>
                                   <td tal:repeat="num batch">
<span tal:replace="structure num"> Material goes here </span>
                   </td>
</tr> --> </table>
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--
Dragos Chirila
Programmer, Finsiel Romania (http://www.finsiel.ro)
44A, Ficusului St. - 013975 Bucharest
Tel: +40 21 2320193, Fax: +40 21 2329807
Jabber: [EMAIL PROTECTED]
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