tasks.py


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import logging

from celery import Celery
from celery.schedules import crontab

celery = Celery('tasks', broker='redis://localhost')

CELERYBEAT_SCHEDULE = {
    'every-ten-secs': {
        'task': 'tasks.print_fib',
        'schedule': crontab(minute='*/1'),
        'args': (30),
    },
}


def fib(n):
    if n > 1:
        return fib(n - 1) + fib(n - 2)
    else:
        return 1


@celery.task
def print_fib(n):
    logging.info(fib(n))