uvloop closes underlying sockets that were established outside upon end of asyncio.run()

This seem to be version/OS unrelated. Sample:

import asyncio
import socket
import uvloop

b = bytes('{"msg": "test"}', 'utf-8')


async def main_async(sock: socket.socket):
    _, writer = await asyncio.open_unix_connection(sock=sock)
    writer.write(b)
    await writer.drain()


if __name__ == '__main__':
    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
    sock.connect('data/sockets/echo_server.sock')
    sock.sendall(b)
    uvloop.install()
    asyncio.run(main_async(sock))  # sock gets wrongly closed on asyncio.run() termination
    sock.sendall(b)  # Exception here OSError: [Errno 9] Bad file descriptor

Last line result in exception "OSError: [Errno 9] Bad file descriptor" because sock gets closed right after asyncio.run() terminates. It is wrong behavior, because sock was created outside of asyncio loop and has to be left untouched. The issue doesn't occur using regular asyncio loop.

Commencez par exécuter le reproducer fourni pour les Unix-sockets et comparez uvloop avec la boucle asyncio standard. Suivez la propriété du socket et le cycle de fermeture autour de asyncio.open_unix_connection() et asyncio.run() ; le travail est terminé lorsque le socket créé à l’extérieur reste utilisable après asyncio.run() et que la régression est couverte par un test.