python 3.11 statement
import oracledb

creates new thread

This confuses cherrypy, it fails to shut down gracefully and shows warning when daemonizing

import threading
print (threading.active_count())
import oracledb
print (threading.active_count())

import cherrypy
class Root(object):
    @cherrypy.expose
    def index(self):
        return "Hello World!"

cherrypy.quickstart(Root(), '/')

output, with attempt to shutdown (ctrl +c) :

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2
[24/Jul/2024:16:57:36] ENGINE Listening for SIGTERM.
[24/Jul/2024:16:57:36] ENGINE Bus STARTING
CherryPy Checker:
The Application mounted at '' has an empty config.

[24/Jul/2024:16:57:36] ENGINE Started monitor thread 'Autoreloader'.
[24/Jul/2024:16:57:36] ENGINE Serving on http://127.0.0.1:8080
[24/Jul/2024:16:57:36] ENGINE Bus STARTED
[24/Jul/2024:16:57:41] ENGINE Keyboard Interrupt: shutting down bus
[24/Jul/2024:16:57:41] ENGINE Bus STOPPING
[24/Jul/2024:16:57:41] ENGINE HTTP Server cherrypy._cpwsgi_server.CPWSGIServer(('127.0.0.1', 8080)) shut down
[24/Jul/2024:16:57:41] ENGINE Stopped thread 'Autoreloader'.
[24/Jul/2024:16:57:41] ENGINE Bus STOPPED
[24/Jul/2024:16:57:41] ENGINE Bus EXITING
[24/Jul/2024:16:57:41] ENGINE Bus EXITED
[24/Jul/2024:16:57:41] ENGINE Waiting for child threads to terminate...
[24/Jul/2024:16:57:41] ENGINE Waiting for thread Thread-1 (close_pools_gracefully).

Also when trying to run cherrypy as daemon:

from cherrypy.process.plugins import Daemonizer
d = Daemonizer(cherrypy.engine)
d.subscribe()
cherrypy.quickstart(Root(), '/')

output:

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2
[24/Jul/2024:17:08:36] ENGINE Listening for SIGTERM.
[24/Jul/2024:17:08:36] ENGINE Listening for SIGHUP.
[24/Jul/2024:17:08:36] ENGINE Listening for SIGUSR1.
[24/Jul/2024:17:08:36] ENGINE Bus STARTING
CherryPy Checker:
The Application mounted at '' has an empty config.

[24/Jul/2024:17:08:36] ENGINE There are [<_MainThread(MainThread, started 139910406747776)>, <Thread(Thread-1 (close_pools_gracefully), started 139910279526144)>] active threads. Daemonizing now may cause strange failures.
[24/Jul/2024:17:08:36] ENGINE Forking once.
<enter> [24/Jul/2024:17:08:36] ENGINE Forking twice.