from django return json(decorator)

jsonize.py

#coding:utf-8

from django.http import HttpResponse
from django.utils import simplejson


def jsonize(original_func):
    def decorated_func(*args, **kwargs):
        if "callback" in args[0].GET:
            ret = original_func(*args, **kwargs)
            return HttpResponse('%s(%s)' % (args[0].GET["callback"],
                                            simplejson.dumps(ret,
                                            ensure_ascii=False)),
                                mimetype="text/javascript")
        else:
            ret = original_func(*args, **kwargs)
            return HttpResponse(simplejson.dumps(ret, ensure_ascii=False),
                                mimetype="text/javascript")

    return decorated_func

"ret" must be serializable