From 175454b78c00db0b21bfb305bc5e054a0a2f7224 Mon Sep 17 00:00:00 2001
From: Ladislav Michl <ladis@triops.cz>
Date: Wed, 10 Sep 2025 08:14:40 +0200
Subject: [PATCH] Py3.13: Initialize field tp_versions_used

---
 src/App/FeaturePythonPyImp.h   | 4 +++-
 src/App/FeaturePythonPyImp.inl | 3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/App/FeaturePythonPyImp.h b/src/App/FeaturePythonPyImp.h
index 3b0d56e328..549217cc3b 100644
--- a/src/App/FeaturePythonPyImp.h
+++ b/src/App/FeaturePythonPyImp.h
@@ -46,7 +46,9 @@
         virtual ~_class_(); \
     };
 
-#if PY_VERSION_HEX >= 0x030c0000
+#if PY_VERSION_HEX >= 0x030d0000
+#define PYTHON_TYPE_SLOTS 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+#elif PY_VERSION_HEX >= 0x030c0000
 #define PYTHON_TYPE_SLOTS 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
 #else
 #define PYTHON_TYPE_SLOTS 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
diff --git a/src/App/FeaturePythonPyImp.inl b/src/App/FeaturePythonPyImp.inl
index 95f53ef790..fd7418e347 100644
--- a/src/App/FeaturePythonPyImp.inl
+++ b/src/App/FeaturePythonPyImp.inl
@@ -83,6 +83,9 @@ PyTypeObject FeaturePythonPyT<FeaturePyT>::Type = {
 #if PY_VERSION_HEX >= 0x030c0000
     ,0                                                /*tp_watched */
 #endif
+#if PY_VERSION_HEX >= 0x030d0000
+    ,0                                                /*tp_versions_used */
+#endif
 };
 
 template<class FeaturePyT>