Monkey-patching may also silently lead to incorrect behaviour on Python 3.7

[tooptoop4]

[2020-04-06 08:58:58 +0000] [4986] [INFO] Booting worker with pid: 4986 /home/ec2-user/venv/local/lib/python3.6/site-packages/gunicorn/workers/ggevent.py:65: MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors, including RecursionError on Python 3.6. It may also silently lead to incorrect behaviour on Python 3.7. Please monkey-patch earlier. See gevent/gevent#1016. Modules that had direct imports (NOT patched): ['urllib3.util (/home/ec2-user/venv/local/lib/python3.6/site-packages/urllib3/util/init.py)', 'urllib3.util.ssl_ (/home/ec2-user/venv/local/lib/python3.6/site-packages/urllib3/util/ssl_.py)']. monkey.patch_all(subprocess=True) /home/ec2-user/venv/local/lib/python3.6/site-packages/gunicorn/workers/ggevent.py:65: MonkeyPatchWarning: Monkey-patching ssl after ssl has already been imported may lead to errors, including RecursionError on Python 3.6. It may also silently lead to incorrect behaviour on Python 3.7. Please monkey-patch earlier. See gevent/gevent#1016. Modules that had direct imports (NOT patched): ['urllib3.util (/home/ec2-user/venv/local/lib/python3.6/site-packages/urllib3/util/init.py)', 'urllib3.util.ssl_ (/home/ec2-user/venv/local/lib/python3.6/site-packages/urllib3/util/ssl_.py)']. monkey.patch_all(subprocess=True) [2020-04-06 08:58:58,803] {init.py:51} INFO - Using executor LocalExecutor [2020-04-06 08:58:58,805] {dagbag.py:403} INFO - Filling up the DagBag from /home/ec2-user/airflow/dags

[boring-cyborg]

Thanks for opening your first issue here! Be sure to follow the issue template!

[kaxil]

The description is unreadable. Please fix the description and follow issue template

[ashb]

Closing as invalid -- that error is not being reported by Airflow, but by gunicorn when using gevent worker, and most of all does not indicate a problem.

If this is causing any actual problems then please give more details.

[zobnec]

This also happened to me.I use a celery worker start a dag and use gevent monkey path in dag code.I can run dag by python command, but with airflow celery worker it reports that (NOT patched): ['urllib3.util...]; So I added gevent monkey path Code at the top of dagbag.py, Just like this and solve it:

import gevent
from gevent import monkey, pool

monkey.patch_all()
import hashlib
import imp
import importlib```