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fix: use ConnectionResetError in TLSUpgradeProto.connection_lost #1312

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fix: use ConnectionResetError in TLSUpgradeProto.connection_lost #1312

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fix: ssl negotiation unhandled exception
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@yemreck
yemreck committed Mar 12, 2026
commit 387d57b3e51aad0881c899b902324b9edc55ece1
5 changes: 4 additions & 1 deletion asyncpg/connect_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -944,7 +944,10 @@ def data_received(self, data: bytes) -> None:
def connection_lost(self, exc: typing.Optional[Exception]) -> None:
if not self.on_data.done():
if exc is None:
exc = ConnectionError('unexpected connection_lost() call')
exc = ConnectionResetError(
'PostgreSQL server at "{host}:{port}" '
'closed the connection during SSL negotiation'.format(
host=self.host, port=self.port))
self.on_data.set_exception(exc)


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