Taken from https://github.com/cython/cython/pull/5725 From c38b320764bd2a7c089b332e0a3d27ec87b725d1 Mon Sep 17 00:00:00 2001 From: yut23 Date: Mon, 25 Sep 2023 16:34:50 -0400 Subject: [PATCH 1/2] Release references to traceback objects in Python 3.12+ Fixes: #5724 --- Cython/Utility/Exceptions.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Cython/Utility/Exceptions.c b/Cython/Utility/Exceptions.c index 20dc7faf3a8..a4416462500 100644 --- a/Cython/Utility/Exceptions.c +++ b/Cython/Utility/Exceptions.c @@ -190,6 +190,8 @@ static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObjec tmp_value = tstate->current_exception; tstate->current_exception = value; Py_XDECREF(tmp_value); + Py_XDECREF(tb); + Py_XDECREF(type); #else PyObject *tmp_type, *tmp_value, *tmp_tb; tmp_type = tstate->curexc_type; From d8b71ef8ccb5ef114a77ce499f192f121060ca02 Mon Sep 17 00:00:00 2001 From: scoder Date: Tue, 26 Sep 2023 11:08:24 +0200 Subject: [PATCH 2/2] Remove now-unused "unused" marker. --- Cython/Utility/Exceptions.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/Cython/Utility/Exceptions.c b/Cython/Utility/Exceptions.c index a4416462500..2144594ba53 100644 --- a/Cython/Utility/Exceptions.c +++ b/Cython/Utility/Exceptions.c @@ -190,8 +189,8 @@ static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObjec tmp_value = tstate->current_exception; tstate->current_exception = value; Py_XDECREF(tmp_value); - Py_XDECREF(tb); Py_XDECREF(type); + Py_XDECREF(tb); #else PyObject *tmp_type, *tmp_value, *tmp_tb; tmp_type = tstate->curexc_type;