File "/XXXX/site-packages/gunicorn/workers/geventlet.py", line 20, in <module>
from eventlet.wsgi import ALREADY_HANDLED as EVENTLET_ALREADY_HANDLED
ImportError: cannot import name 'ALREADY_HANDLED' from 'eventlet.wsgi'
(/XXXX/site-packages/eventlet/wsgi.py)
安装指定版本的eventlet库:pip install eventlet==0.30.2