Iterating through two lists in Django templates


Question

I want to do the below list iteration in django templates:

foo = ['foo', 'bar'];
moo = ['moo', 'loo'];

for (a, b) in zip(foo, moo):
    print a, b

django code:

{%for a, b in zip(foo, moo)%}
  {{a}}
  {{b}}
{%endfor%}

I get the below error when I try this:

File "/base/python_lib/versions/third_party/django-0.96/django/template/defaulttags.py", line 538, in do_for
    raise TemplateSyntaxError, "'for' statements should have either four or five words: %s" % token.contents

How do I accomplish this?

1
31
9/15/2011 9:06:58 PM

Accepted Answer

It's possible to do

{% for ab in mylist %}
    {{ab.0}}
    {{ab.1}}
{% endfor %}

but you cannot make a call to zip within the for structure. You'll have to store the zipped list in another variable first, then iterate over it.

18
3/10/2010 11:09:48 AM

You can use zip in your view:

mylist = zip(list1, list2)
context = {
            'mylist': mylist,
        }
return render(request, 'template.html', context)

and in your template use

{% for item1, item2 in mylist %}

to iterate through both lists.

This should work with all version of Django.


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