Windows PYTHon3.7 celery appears with various solutions to problems

Celery 3.+ = celery 3.+ = celery 3.+ = celery 3.+ = celery 3. The celery3.+ version of celery3.+ has fixed this problem in the new version of celery3

I didn’t want to change the Python environment so I had to use Celery4 with the bug.+ I chose Celery4.3 PIP to install the specified version

pip install celery==4.3
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That solves the async bug

Win10 requires to start worker in coroutine mode

pip install eventlet
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Start worker with a parameter -p eventlet

celery -A worker -l info -P eventlet
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In the celery

from celery import Celery
import os

os.environ.setdefault('FORKED_BY_MULTIPROCESSING'.'1') # add this sentence
app = Celery(XXX)
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Reference blog.csdn.net/apple_sir_b… Thank you so much