asyncio: ConnectionResetError after StreamWriter is garbage collected #109321
Description
Bug report
Bug description:
The code below works perfectly on Python 3.11.4 but fails with ConnectionResetError on Python 3.11.5
import asyncio
HOST = 'ifconfig.me'
PORT = 80
async def connect() -> asyncio.Transport:
reader, writer = await asyncio.open_connection(
host=HOST,
port=PORT,
)
return writer.transport # type: ignore
async def fetch():
loop = asyncio.get_running_loop()
transport = await connect()
# transport is already closed here on 3.11.5
reader = asyncio.StreamReader(limit=2**16, loop=loop)
protocol = asyncio.StreamReaderProtocol(reader, loop=loop)
transport.set_protocol(protocol)
loop.call_soon(protocol.connection_made, transport)
loop.call_soon(transport.resume_reading)
writer = asyncio.StreamWriter(
transport=transport,
protocol=protocol,
reader=reader,
loop=loop,
)
request = f'GET /ip HTTP/1.1\r\nHost: {HOST}\r\nConnection: close\r\n\r\n'.encode()
writer.write(request)
await writer.drain()
response = await reader.read(-1)
print(response)
writer.close()
if __name__ == '__main__':
asyncio.run(fetch())Traceback (most recent call last):
File "/home/rigens/aio_test1.py", line 50, in <module>
asyncio.run(fetch())
File "/usr/local/miniconda/envs/py311_5/lib/python3.11/asyncio/runners.py", line 190, in run
return runner.run(main)
^^^^^^^^^^^^^^^^
File "/usr/local/miniconda/envs/py311_5/lib/python3.11/asyncio/runners.py", line 118, in run
return self._loop.run_until_complete(task)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/miniconda/envs/py311_5/lib/python3.11/asyncio/base_events.py", line 653, in run_until_complete
return future.result()
^^^^^^^^^^^^^^^
File "/home/rigens/aio_test1.py", line 41, in fetch
await writer.drain()
File "/usr/local/miniconda/envs/py311_5/lib/python3.11/asyncio/streams.py", line 378, in drain
await self._protocol._drain_helper()
File "/usr/local/miniconda/envs/py311_5/lib/python3.11/asyncio/streams.py", line 167, in _drain_helper
raise ConnectionResetError('Connection lost')
ConnectionResetError: Connection lostCPython versions tested on:
3.11
Operating systems tested on:
Linux