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GH-98539: fix ref cycle in _SSLProtocolTransport after close #98540

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Merged
merged 1 commit into from
Oct 22, 2022
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GH-98539: fix ref cycle in _SSLProtocolTransport after close #98540

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7 changes: 5 additions & 2 deletions Lib/asyncio/sslproto.py
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Original file line number Diff line number Diff line change
Expand Up @@ -107,8 +107,11 @@ def close(self):
protocol's connection_lost() method will (eventually) called
with None as its argument.
"""
self._closed = True
self._ssl_protocol._start_shutdown()
if not self._closed:
self._closed = True
self._ssl_protocol._start_shutdown()
else:
self._ssl_protocol = None

def __del__(self, _warnings=warnings):
if not self._closed:
Expand Down