From cf0d164092bfa61c386fba9f439f3ad94fadd88a Mon Sep 17 00:00:00 2001
From: frmdstryr <frmdstryr@protonmail.com>
Date: Tue, 21 Jan 2025 15:01:45 -0500
Subject: [PATCH] Use PyMapping_HasKeyWithError on 3.13+

---
 atom/src/catom.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/atom/src/catom.cpp b/atom/src/catom.cpp
index 5b9f3053..ab494b15 100644
--- a/atom/src/catom.cpp
+++ b/atom/src/catom.cpp
@@ -451,7 +451,13 @@ CAtom_setstate( CAtom* self, PyObject* state )
         return cppy::type_error("__setstate__ requires a mapping");
 
     // If the -f key is present freeze the object
-    bool frozen = PyMapping_HasKey(state, atom_flags);
+#if PY_VERSION_HEX >= 0x030D0000
+    int frozen = PyMapping_HasKeyWithError( state, atom_flags );
+    if ( frozen == -1 )
+        return 0;
+#else
+    int frozen = PyMapping_HasKey( state, atom_flags );
+#endif
     if ( frozen )
     {
         if ( PyMapping_DelItem(state, atom_flags) == -1 )