votes up 1

The worker sub-command must be specified in argv. Use app.start() to programmatically start other commands.

github stars 17847
Exception Class:

Raise code

celery.params[0].default = None

    def worker_main(self, argv=None):
        if argv is None:
            argv = sys.argv

        if 'worker' not in argv:
            raise ValueError(
                "The worker sub-command must be specified in argv.\n"
                "Use app.start() to programmatically start other commands."


    def task(self, *args, **opts):
        """D """
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