View Ajax Json

from django.shortcuts import render

from django.http import HttpResponse, Http404, HttpResponseRedirect
from django.template import RequestContext
from django.shortcuts import render_to_response, get_object_or_404
from django.core import serializers

from example.my_app.models import Example

def example_cat(request, in_category):
    examples = list( Example.objects.filter(category = in_category) )
    variables = RequestContext( request,
        {
            'examples': examples,
        })
    return render_to_response('Example/Example.html', variables)

def example_cat_json(request, in_category):
    try:
        examples = list( Example.objects.filter(category = in_category) )
        data = serializers.serialize('json', examples)
        print data
        return HttpResponse(data, mimetype='application/javascript')
    except Category.DoesNotExist:
        print "Error: Category does not exist."
        message = "Error: Category does not exist."
        return HttpResponse(message)