Apio: ¿No hay un Backend configurado?

Estoy tratando de verificar los resultados del apio desde la línea de comandos, pero obtengo un error de No Result Backend Configured . He configurado redis como resultado de mi backend y ahora estoy en una pérdida.

Tengo la configuración de la aplicación de apio así:

qflow/celery.py :

 os.environ.setdefault('CELERY_CONFIG_MODULE', 'qflow.celeryconfig') app = Celery( 'qflow', include=['qflow.tasks'] ) app.config_from_envvar('CELERY_CONFIG_MODULE') 

El módulo de configuración ( qflow/celeryconfig.py ) se ve así:

 broker_url = 'redis://localhost:6379/0' result_backend = 'redis://localhost:6379/0' result_persistent = True task_result_expires = None send_events = True 

El trabajador de apio comienza bien:

 $ celery -A qflow worker -E -l info -------------- celery@james-laptop v4.0.2 (latentcall) ---- **** ----- --- * *** * -- Linux-4.8.0-52-generic-x86_64-with-debian-stretch-sid 2017-07-21 14:22:34 -- * - **** --- - ** ---------- [config] - ** ---------- .> app: qflow:0x7fcbde317f28 - ** ---------- .> transport: redis://localhost:6379/0 - ** ---------- .> results: redis://localhost:6379/0 - *** --- * --- .> concurrency: 4 (prefork) -- ******* ---- .> task events: ON --- ***** ----- -------------- [queues] .> celery exchange=celery(direct) key=celery 

Parece indicar que los resultados están configurados.

Importo las tareas y las comienzo desde mi aplicación web (basada en falcon, ejecutando con gunicorn), pero cuando bash consultarlas en la línea de comandos con el celery result , obtengo:

 Traceback (most recent call last): File "/home/james/miniconda3/envs/qflow/bin/celery", line 11, in  load_entry_point('celery', 'console_scripts', 'celery')() File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/__main__.py", line 14, in main _main() File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 326, in main cmd.execute_from_commandline(argv) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 488, in execute_from_commandline super(CeleryCommand, self).execute_from_commandline(argv))) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 281, in execute_from_commandline return self.handle_argv(self.prog_name, argv[1:]) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 480, in handle_argv return self.execute(command, argv) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/celery.py", line 412, in execute ).run_from_argv(self.prog_name, argv[1:], command=argv[0]) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 285, in run_from_argv sys.argv if argv is None else argv, command) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 368, in handle_argv return self(*args, **options) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/base.py", line 244, in __call__ ret = self.run(*args, **kwargs) File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/bin/result.py", line 40, in run value = task_result.get() File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/result.py", line 189, in get on_message=on_message, File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/backends/base.py", line 466, in wait_for_pending no_ack=no_ack, File "/home/james/miniconda3/envs/qflow/lib/python3.6/site-packages/celery/backends/base.py", line 772, in _is_disabled raise NotImplementedError(E_NO_BACKEND.strip()) NotImplementedError: No result backend is configured. Please see the documentation for more information. 

Estoy corriendo en Linux (4.8.0-52-generic)