ImportError: No module named celery for Celery 3.1 and Python 2.7

问题

Using Python 2.7 and Celery 3.1.25 on Windows, when we run the Celery worker using

celery -A proj worker -l info

we get the error

ImportError: No module named celery

Problem: The worker stops working when we

changed the name of the file celeryApp.py from celery.py
changed the import statement in tasks.py from from .celery import app to from celeryApp import app.

Why is this happening? How can we fix the problem?

Directory structure

/proj/__init__.py
/proj/celeryApp.py
/proj/tasks.py

/proj/celeryApp.py

from __future__ import absolute_import, unicode_literals
from celery import Celery

app = Celery('tasks', 
    broker='amqp://jack:jack@192.168.1.26:5672//',
    backend='amqp://',
    include=['proj.tasks'])

if __name__ == '__main__':
    app.start()

/proj/tasks.py

from __future__ import absolute_import, unicode_literals
from celeryApp import app

@app.task
def add(x, y):
    return x + y

回答1:

When starting a celery worker, you should name the app to match the python file where the celery module is configured. You should start worker with

celery worker -l info -A tasks

You shouldn't name your config file to celery.py. This will cause problems when you start importing

from celery import Celery

Your file should be named something else but not celery.py.

Also in your config file there is no need to add

if __name__ == '__main__':
    app.start()

If you are going to explicitly include proj.tasks make sure proj is in python path or you can just remove it as you are starting worker with tasks app.

来源：https://stackoverflow.com/questions/43032592/importerror-no-module-named-celery-for-celery-3-1-and-python-2-7

标签

python

python-2.7

celery