Celery相关第三方插件djcelery的使用

命令执行失败：python manage.py celery worker -c 4 --loglevel=info
命令执行成功：python manage.py celeryd worker -c 4 --loglevel=info
相关命令参数：python manage.py celeryd --help

optional arguments:
  -h, --help            show this help message and exit
  --concurrency CONCURRENCY, -c CONCURRENCY
  --pool POOL_CLS, -P POOL_CLS
  --purge, --discard
  --loglevel LOGLEVEL, -l LOGLEVEL
  --hostname HOSTNAME, -n HOSTNAME
  --beat, -B
  --schedule SCHEDULE_FILENAME, -s SCHEDULE_FILENAME
  --scheduler SCHEDULER_CLS
  --statedb STATE_DB, -S STATE_DB
  --events, -E
  --time-limit TASK_TIME_LIMIT
  --soft-time-limit TASK_SOFT_TIME_LIMIT
  --maxtasksperchild MAX_TASKS_PER_CHILD
  --queues QUEUES, -Q QUEUES
  --exclude-queues EXCLUDE_QUEUES, -X EXCLUDE_QUEUES
  --include INCLUDE, -I INCLUDE
  --autoscale AUTOSCALE
  --autoreload
  --no-execv
  --without-gossip
  --without-mingle
  --without-heartbeat
  --heartbeat-interval HEARTBEAT_INTERVAL
  -O OPTIMIZATION
  --detach, -D
  --logfile LOGFILE, -f LOGFILE
  --pidfile PIDFILE
  --uid UID
  --gid GID
  --umask UMASK
  --executable EXECUTABLE
  --broker BROKER, -b BROKER
  --workdir WORKING_DIRECTORY
  --quiet, -q
  --version             show program's version number and exit
  -v {0,1,2,3}, --verbosity {0,1,2,3}
                        Verbosity level; 0=minimal output, 1=normal output,
                        2=verbose output, 3=very verbose output
  --settings SETTINGS   The Python path to a settings module, e.g.
                        "myproject.settings.main". If this isn't provided, the
                        DJANGO_SETTINGS_MODULE environment variable will be
                        used.
  --pythonpath PYTHONPATH
                        A directory to add to the Python path, e.g.
                        "/home/djangoprojects/myproject".
  --traceback           Raise on CommandError exceptions
  --no-color            Don't colorize the command output.
  --force-color         Force colorization of the command output.