old_contents: import os
  import logging
  
  from django.conf import settings
  from django.http import HttpResponse
  from django.utils.importlib import import_module
  from django.views.decorators.csrf import csrf_exempt
  
  from djangae.utils import on_production
  
  def warmup(request):
      """
          Provides default procedure for handling warmup requests on App
          Engine. Just add this view to your main urls.py.
      """
      for app in settings.INSTALLED_APPS:
          for name in ('urls', 'views', 'models'):
              try:
                  import_module('%s.%s' % (app, name))
              except ImportError:
                  pass
      content_type = 'text/plain; charset=%s' % settings.DEFAULT_CHARSET
      return HttpResponse("Warmup done.", content_type=content_type)
  
  @csrf_exempt
  def deferred(request):
      from google.appengine.ext.deferred.deferred import (
          run,
          SingularTaskFailure,
          PermanentTaskFailure
      )
  
      response = HttpResponse()
  
      if 'HTTP_X_APPENGINE_TASKEXECUTIONCOUNT' in request.META:
          logging.debug("[DEFERRED] Retry %s of deferred task", request.META['HTTP_X_APPENGINE_TASKEXECUTIONCOUNT'])
  
      if 'HTTP_X_APPENGINE_TASKNAME' not in request.META:
          logging.critical('Detected an attempted XSRF attack. The header "X-AppEngine-Taskname" was not set.')
          response.status = 403
          return response
  
      in_prod = on_production()
  
      if in_prod and os.environ.get("REMOTE_ADDR") != "0.1.0.2":
          logging.critical('Detected an attempted XSRF attack. This request did not originate from Task Queue.')
          response.status = 403
          return response
  
      try:
          run(request.body)
      except SingularTaskFailure:
          logging.debug("Failure executing task, task retry forced")
          response.status = 408
      except PermanentTaskFailure:
          logging.exception("Permanent failure attempting to execute task")
  
      return response
  
new_contents: import os
  import logging
  
  from django.conf import settings
  from django.http import HttpResponse
  from django.utils.importlib import import_module
  from django.views.decorators.csrf import csrf_exempt
  
  from djangae.utils import on_production
  
  def warmup(request):
      """
          Provides default procedure for handling warmup requests on App
          Engine. Just add this view to your main urls.py.
      """
      for app in settings.INSTALLED_APPS:
          for name in ('urls', 'views', 'models'):
              try:
                  import_module('%s.%s' % (app, name))
              except ImportError:
                  pass
      content_type = 'text/plain; charset=%s' % settings.DEFAULT_CHARSET
      return HttpResponse("Warmup done.", content_type=content_type)
  
  @csrf_exempt
  def deferred(request):
      from google.appengine.ext.deferred.deferred import (
          run,
          SingularTaskFailure,
          PermanentTaskFailure
      )
  
      response = HttpResponse()
  
      if 'HTTP_X_APPENGINE_TASKEXECUTIONCOUNT' in request.META:
          logging.debug("[DEFERRED] Retry %s of deferred task", request.META['HTTP_X_APPENGINE_TASKEXECUTIONCOUNT'])
  
      if 'HTTP_X_APPENGINE_TASKNAME' not in request.META:
          logging.critical('Detected an attempted XSRF attack. The header "X-AppEngine-Taskname" was not set.')
          response.status_code = 403
          return response
  
      in_prod = on_production()
  
      if in_prod and os.environ.get("REMOTE_ADDR") != "0.1.0.2":
          logging.critical('Detected an attempted XSRF attack. This request did not originate from Task Queue.')
          response.status_code = 403
          return response
  
      try:
          run(request.body)
      except SingularTaskFailure:
          logging.debug("Failure executing task, task retry forced")
          response.status_code = 408
      except PermanentTaskFailure:
          logging.exception("Permanent failure attempting to execute task")
  
      return response
  
subject: Fix a magnificent error in the deferred handler