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?

Answer 1

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.

Answer 2

Simply define zip as a template filter:

@register.filter(name='zip') def zip_lists(a, b):   return zip(a, b) 

Then, in your template:

{%for a, b in first_list|zip:second_list %}   {{a}}   {{b}} {%endfor%}