From 396b58345f81d4c8c5a52546d2288e666a1b9b8b Mon Sep 17 00:00:00 2001
From: Irit Katriel <1055913+iritkatriel@users.noreply.github.com>
Date: Fri, 17 Dec 2021 14:46:22 +0000
Subject: bpo-45711: Remove type and traceback from exc_info (GH-30122)

* Do not PUSH/POP traceback or type to the stack as part of exc_info

* Remove exc_traceback and exc_type from _PyErr_StackItem

* Add to what's new, because this change breaks things like Cython
---
 Objects/genobject.c | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'Objects')

diff --git a/Objects/genobject.c b/Objects/genobject.c
index 24a4e94bfc..d093f3dd7d 100644
--- a/Objects/genobject.c
+++ b/Objects/genobject.c
@@ -25,9 +25,7 @@ static const char *ASYNC_GEN_IGNORED_EXIT_MSG =
 static inline int
 exc_state_traverse(_PyErr_StackItem *exc_state, visitproc visit, void *arg)
 {
-    Py_VISIT(exc_state->exc_type);
     Py_VISIT(exc_state->exc_value);
-    Py_VISIT(exc_state->exc_traceback);
     return 0;
 }
 
@@ -886,9 +884,7 @@ make_gen(PyTypeObject *type, PyFunctionObject *func)
     gen->gi_code = (PyCodeObject *)func->func_code;
     Py_INCREF(gen->gi_code);
     gen->gi_weakreflist = NULL;
-    gen->gi_exc_state.exc_type = NULL;
     gen->gi_exc_state.exc_value = NULL;
-    gen->gi_exc_state.exc_traceback = NULL;
     gen->gi_exc_state.previous_item = NULL;
     if (func->func_name != NULL)
         gen->gi_name = func->func_name;
@@ -975,9 +971,7 @@ gen_new_with_qualname(PyTypeObject *type, PyFrameObject *f,
     Py_INCREF(gen->gi_code);
     Py_DECREF(f);
     gen->gi_weakreflist = NULL;
-    gen->gi_exc_state.exc_type = NULL;
     gen->gi_exc_state.exc_value = NULL;
-    gen->gi_exc_state.exc_traceback = NULL;
     gen->gi_exc_state.previous_item = NULL;
     if (name != NULL)
         gen->gi_name = name;
-- 
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