app = Celery('tasks', backend='amqp', broker='amqp://')
Or if you want to use Redis as the result backend, but still use RabbitMQ as the message broker (a popular combination):

app = Celery('tasks', backend='redis://localhost', broker='amqp://')

=========

  Redis 命令行结果
  127.0.0.1:6379> keys *
 1) "emails"
 2) "mmtest"
 3) "_kombu.binding.celery"
 4) "_kombu.binding.celeryev"
 5) "celery-task-meta-f418abea-7827-4220-b72e-a0669e8b8a08"
 6) "celery-task-meta-43105310-a8e2-483b-bd8a-8a54affc9192"
 7) "_kombu.binding.celery.pidbox"
 8) "name"
 9) "unacked_mutex"
10) "email"
11) "mygmail"
12) "myyahoo"

如何产看redis里面的存储内容？