python celery asynchronous learning

1. Run redis

2.安装celery：pip install celery[redis]

3.vim task.py

import time
from celery import Celery

broker = 'redis://localhost:6379/1'
backend = 'redis://localhost:6379/2' 
app = Celery("my_task",broker=broker,backend=backend) #my_task 是用来生成任务名的前缀  

@app.task 
def add(x,y): 
    print("enter call func....") 
    time.sleep(4) 
    return x + y

4.vim app.py

import time
from task import add

if __name__ == '__main__':
    print("start task....")
    result = add.delay(10,20)
    print(result)

5. Start celery worker

celery worker -A task task [filename] -l INFO

 

 6. Run add function or perform app.py