Jinja2 - Render list items in groups of x

Issue

I am looking to output a list of items in a table in a jinja2 template.

current code:

<table style="width:100%">
{% for i in sales %}
  <tr>
     <td>{{i}}</td>
  </tr>
{% endfor %}
</table>

Which results in:

item
item
item
item
...

Expected output:

item    item    item        
item    item    item    
item    item    item    
item    item    item    
...

I would like the output to be spread over three columns, ie. loop from left to right in the table and then start a new row after 3 items.

Solution

You can use batch

>>> import jinja2
>>> t = jinja2.Template("{% for i in items|batch(3) %}{{i}}{% endfor %}")
>>> items = ['1', '2', '3', '4', '5', '6', '7', '8', '9']
>>> print t.render(items=items)
>>> ['1', '2', '3']['4', '5', '6']['7', '8', '9']

Answered By - simanacci