gistfile1.py

from django.shortcuts import render_to_response
from django.template import RequestContext
from django.http import HttpResponse
from django.utils import simplejson
from random import choice
import string

def render_tuple(f):
    def wrap(request, *args, **kwargs):
        context = f(request, *args, **kwargs)
        if not isinstance(context, tuple):
            return context

        if context[0] == 'json':
            return HttpResponse(simplejson.dumps(context[1]),
                mimetype='application/json')
        elif context[0] == 'jsonp':
            return HttpResponse('%s(%s)' % (context[1], simplejson.dumps(context[2])),
                mimetype='application/json')

        else:
            return render_to_response(
                context[0],
                context[1],
                context_instance=RequestContext(request),
            )
        
    return wrap

def pwgen(length):
    return ''.join([choice(string.letters + string.digits) for i in range(length)])