Iterating over nested data structures in Django templates

output.html

<pre>
    nds={u&#39;outer1&#39;: (&#39;mid1a&#39;, &#39;mid1b&#39;), u&#39;outer2&#39;: &#39;mid2a&#39;}.
    
      outer=outer1
      
        mid=o
      
        mid=u
      
        mid=t
      
        mid=e
      
        mid=r
      
        mid=1
      
    
      outer=outer2
      
        mid=o
      
        mid=u
      
        mid=t
      
        mid=e
      
        mid=r
      
        mid=2
      
    
    </pre>
    

views.py

from django.shortcuts import render
from django.template import Template, RequestContext
from django.http import HttpResponse

def view(request):
    
    nds = {
        u'outer1': ('mid1a', 'mid1b'),
        u'outer2': ('mid2a'),
    }
    
    ts = u"""<pre>
    nds={{ nds }}.
    {% for outer in nds %}
      outer={{ outer }}
      {% for mid in outer %}
        mid={{ mid }}
      {% endfor %}
    {% endfor %}
    </pre>
    """
    
    t = Template(ts)

    d = {'nds': nds}

    c = RequestContext(request, d)
    
    s = t.render(c)
    
    print "s=", s
    
    return HttpResponse(s)