BROKER_URL = 'amqp://' + RABBITMQ_USER + ':' + RABBITMQ_PASSWORD + '@rabbitmq:5672//'
-BOOKING_EXP_TIME = os,environ['BOOKING_EXPIRE_TIME']
+BOOKING_EXP_TIME = os.environ['BOOKING_EXPIRE_TIME']
BOOKING_MAX_NUM = os.environ['BOOKING_MAXIMUM_NUMBER']
CELERYBEAT_SCHEDULE = {