From 48a2b0129d57961e1719b993c6957f8931b527ad Mon Sep 17 00:00:00 2001
From: Mae <22501070+biglizards@users.noreply.github.com>
Date: Wed, 30 Apr 2025 11:25:16 +0100
Subject: [PATCH 1/2] Remove redundant incref of immortal object Py_EMPTY_KEYS

---
 Objects/dictobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index b6f623b8ce9df6..7bfb578d46aaec 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -4853,7 +4853,7 @@ dict_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
 
     d->ma_used = 0;
     d->_ma_watcher_tag = 0;
-    dictkeys_incref(Py_EMPTY_KEYS);
+    // We don't inc ref empty keys because they're immortal
     d->ma_keys = Py_EMPTY_KEYS;
     d->ma_values = NULL;
     ASSERT_CONSISTENT(d);

From cea7e26638087da200c5e0a5864e238c0acaf7e8 Mon Sep 17 00:00:00 2001
From: Mae <22501070+biglizards@users.noreply.github.com>
Date: Wed, 30 Apr 2025 12:58:41 +0100
Subject: [PATCH 2/2] add assert that Py_EMPTY_KEYS is immortal

---
 Objects/dictobject.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index 7bfb578d46aaec..3a0d5ea9f8aa3d 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -4854,6 +4854,7 @@ dict_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
     d->ma_used = 0;
     d->_ma_watcher_tag = 0;
     // We don't inc ref empty keys because they're immortal
+    assert((Py_EMPTY_KEYS)->dk_refcnt == _Py_DICT_IMMORTAL_INITIAL_REFCNT);
     d->ma_keys = Py_EMPTY_KEYS;
     d->ma_values = NULL;
     ASSERT_CONSISTENT(d);