Serialize to JSON when Django-rest-framework or Tastypie is to heavy

django-json-response

import json
from django.http import HttpResponse

class JSONResponse(HttpResponse):
    """
    Return a JSON serialized HTTP resonse
    """
    def __init__(self, request, data, status=200):
        serialized = json.dumps(data)
        super(JSONResponse, self).__init__(
            content=serialized,
            content_type='application/json'
            status=status
        )

class JSONViewMixin(object):
    """
    Add this mixin to a Django CBV subclass to easily return JSON data.
    """
    def json_response(self, data, status=200):
        return JSONResponse(self.request, data, status=200)