old_contents: """
  raven.contrib.celery
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :copyright: (c) 2010 by the Sentry Team, see AUTHORS for more details.
  :license: BSD, see LICENSE for more details.
  """
  
  try:
      from celery.task import task
  except ImportError:
      from celery.decorators import task
  from celery.signals import task_failure
  from raven.base import Client
  
  
  class CeleryMixin(object):
      def send_encoded(self, message):
          "Errors through celery"
          self.send_raw.delay(message)
  
      @task(routing_key='sentry')
      def send_raw(self, message):
          return super(CeleryMixin, self).send_encoded(message)
  
  
  class CeleryClient(CeleryMixin, Client):
      pass
  
  
  def register_signal(client):
      def process_failure_signal(exception, traceback, sender, task_id,
                                 signal, args, kwargs, einfo, **kw):
          exc_info = (type(exception), exception, traceback)
          client.captureException(
              exc_info=exc_info,
              extra={
                  'task_id': task_id,
                  'sender': sender,
                  'args': args,
                  'kwargs': kwargs,
              })
      task_failure.connect(process_failure_signal)
  
new_contents: """
  raven.contrib.celery
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  
  :copyright: (c) 2010 by the Sentry Team, see AUTHORS for more details.
  :license: BSD, see LICENSE for more details.
  """
  
  try:
      from celery.task import task
  except ImportError:
      from celery.decorators import task
  from celery.signals import task_failure
  from raven.base import Client
  
  
  class CeleryMixin(object):
      def send_encoded(self, message):
          "Errors through celery"
          self.send_raw.delay(message)
  
      @task(routing_key='sentry')
      def send_raw(self, message):
          return super(CeleryMixin, self).send_encoded(message)
  
  
  class CeleryClient(CeleryMixin, Client):
      pass
  
  
  def register_signal(client):
      @task_failure.connect(weak=False)
      def process_failure_signal(sender, task_id, exception, args, kwargs,
                                 traceback, einfo, **kw):
          client.captureException(
              exc_info=einfo.exc_info,
              extra={
                  'task_id': task_id,
                  'task': sender,
                  'args': args,
                  'kwargs': kwargs,
              })
  
  
subject: Fix celery task_failure signal definition