From a6331b605e8044a205a113e1db87d2b0a53d0222 Mon Sep 17 00:00:00 2001 From: Richard Kojedzinszky Date: Tue, 20 Dec 2022 11:40:56 +0100 Subject: [PATCH] gh-100348: Fix ref cycle in `asyncio._SelectorSocketTransport` with `_read_ready_cb` (#100349) --- Lib/asyncio/selector_events.py | 4 ++++ .../Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst | 2 ++ 2 files changed, 6 insertions(+) create mode 100644 Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst diff --git a/Lib/asyncio/selector_events.py b/Lib/asyncio/selector_events.py index 3d30006198f671..74f289f0e6f811 100644 --- a/Lib/asyncio/selector_events.py +++ b/Lib/asyncio/selector_events.py @@ -1133,6 +1133,10 @@ def _make_empty_waiter(self): def _reset_empty_waiter(self): self._empty_waiter = None + def close(self): + self._read_ready_cb = None + super().close() + class _SelectorDatagramTransport(_SelectorTransport, transports.DatagramTransport): diff --git a/Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst b/Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst new file mode 100644 index 00000000000000..b5d4f7ca998cb5 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst @@ -0,0 +1,2 @@ +Fix ref cycle in :class:`!asyncio._SelectorSocketTransport` by removing ``_read_ready_cb`` in ``close``. +