title: Django get_object_or_404 is not defined
body: <p>I am developing a standalone application which uses ORM of django. In my main application, I am using django's module of get_object_or_404.</p>
  
  <p>I have imported it with all its dependencies when I run the script, it gives me the error: </p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/lib/python2.7/dist-packages/celery/app/trace.py", line 240, in trace_task
      R = retval = fun(*args, **kwargs)
    File "/usr/local/lib/python2.7/dist-packages/celery/app/trace.py", line 438, in __protected_call__
      return self.run(*args, **kwargs)
    File "/root/standAlone/tasks.py", line 48, in task1
  NameError: global name 'get_object_or_404' is not defined
  </code></pre>
  
  <p>Here is my full script code:</p>
  
  <pre><code>import django
  from celery import Celery
  from django.conf import settings
  settings.configure(
      DATABASE_ENGINE    = "django.db.backends.mysql",
      DATABASE_NAME      = "database name",
      DATABASE_USER      = "username",
      DATABASE_PASSWORD  = "password",
      DATABASE_HOST      = "host",
      DATABASE_PORT      = "3306",
      INSTALLED_APPS     = ("myApp",)
  )
  django.setup()
  from django.db import models
  from myApp.models import *
  from django.contrib import messages
  from django.core.urlresolvers import reverse
  from django.http import HttpResponseRedirect
  from django.shortcuts import render,redirect
  from django.shortcuts import get_list_or_404, get_object_or_404
  from celery.decorators import task
  from celery.utils.log import get_task_logger
  
  
  
  app = Celery('tasks', broker='redis://broker_url')
  
  @app.task(name="task1")
  def task1(recipe_pk):
      recipe = get_object_or_404(Recipe, pk=recipe_pk) #error occurs here
      recipe.status = 'Completed'
      recipe.save()
  </code></pre>
  
  <p>Does anyone know how to solve this problem?</p>