我有celery 4.1.0的django 1.11.5应用程序，我一直都收到了：
kombu.exceptions.EncodeError: <User: testuser> is not JSON serializable
我的settings.py：
CELERY_BROKER_URL = 'amqp://localhost'
CELERY_RESULT_BACKEND = 'amqp://localhost'
CELERY_ACCEPT_CONTENT = ['application/json']
CELERY_RESULT_SERIALIZER = 'json'
CELERY_TASK_SERIALIZER = 'json'
CELERY_TIMEZONE = 'Asia/Makassar'
CELERY_BEAT_SCHEDULE = {}
task.py
from __future__ import absolute_import, unicode_literals
from celery import task
from django.contrib.auth.models import User
@task(serializer='json')
def task_number_one():
user = User.objects.create(username="testuser", email="test@test.com", password="pass")
return user
在视图中我调用任务：
def form_valid(self, form):
form.instance.user = self.request.user
task_number_one.delay()
return super().form_valid(form)