SysLogHandler closes tcp session after first message (also noted in #66006)

Bug report

Python 3.10.5
While running FastAPI (Uvicorn) and the SysLogHandler. The Socket if using a TCP stream is being closed after the first message, causing all additional messages to fail stating OSError10083. In looking through the SysLogHandler code I was able to add a try/except that solved the issue by opening a new socket if the current is found to be closed.

Lines 990/991:

else:
    self.socket.sendall(msg)

I changed to:

else:
    try:
        self.socket.sendall(msg)
    except OSError:
        with socket.create_connection(self.address) as s:
            s.sendall(msg)

Your environment

Python 3.10

• CPython versions tested on: 3.10
• Operating system and architecture: Windows 10

Commencez dans la branche d’envoi TCP de SysLogHandler autour des lignes 990-991 et reproduisez l’échec avec Python 3.10 sur Windows 10 en utilisant FastAPI et Uvicorn. Vérifiez que l’envoi de plusieurs messages n’échoue pas après la fermeture du socket TCP, et ajoutez ou mettez à jour la couverture du comportement de reconnexion si le dépôt contient un emplacement de test pertinent.