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gh-100348: asyncio._SelectorSocketTransport: free cyclic reference on close() #100349

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Dec 20, 2022
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gh-100348: asyncio._SelectorSocketTransport: free cyclic reference on close() #100349

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f1bf41e
asyncio._SelectorSocketTransport: free cyclic reference on close()
rkojedzinszky Dec 19, 2022
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📜🤖 Added by blurb_it.
blurb-it[bot] Dec 19, 2022
9f62ce0
Update Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o…
kumaraditya303 Dec 20, 2022
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4 changes: 4 additions & 0 deletions Lib/asyncio/selector_events.py
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Original file line number Diff line number Diff line change
Expand Up @@ -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):

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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Library/2022-12-19-19-30-06.gh-issue-100348.o7IAHh.rst
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@@ -0,0 +1,2 @@
Fix ref cycle in :class:`!asyncio._SelectorSocketTransport` by removing ``_read_ready_cb`` in ``close``.