How to start a Celery worker from a script/module __main__?

Question

I\'ve define a Celery app in a module, and now I want to start the worker from the same module in its __main__, i.e. by running the module with

Answer 1

Since Celery 5 things have been changed

The worker_main results now:

AttributeError: 'Celery' object has no attribute 'worker_main'

For Celery 5 do following:

app = celery.Celery(
    'project',
    include=['project.tasks']
)

if __name__ == '__main__':
    worker = app.Worker(
        include=['project.tasks']
    )
    worker.start()

See here celery.apps.worker and celery.worker.WorkController.setup_defaults for details (hope it will be documented better in the future).