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I really need your kind help with this problem.

I recently upgraded ubuntu 18.04 to 20.04 and with it, I can't run the ryu controller that is based on python because it shows this import error:

ImportError: cannot import name 'ALREADY_HANDLED' from 'eventlet.wsgi'(/usr/local/lib/python3.8/dist-packages/eventlet/wsgi.py)

I already tried installing eventlet 30.2 and upgraded gunicorn to last version 20.1

I've been researching for days for different versions of eventlet 30.2 and gunicorn but still nothing. Please help.

I tried the eventlet 30.2.

Dev Bhuyan
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Ahmad Alkrad
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  • I see you tried version 30.2, but have you tried version 0.30.2? See also: https://stackoverflow.com/questions/67409452/gunicorn-importerror-cannot-import-name-already-handled-from-eventlet-wsgi (If this is what you mean, I apologize for the redundancy.) – Nick ODell Jun 24 '23 at 20:21

1 Answers1

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Altering to eventlet == 0.30.2 probably fixes the issue.

sudo pip3 uninstall eventlet
sudo pip3 install eventlet==0.30.2
toyota Supra
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Ramon
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