File py313-ctraits.patch of Package python-traits

From a20f2154b2c79eb8550ea9228d1a4415ff51b72a Mon Sep 17 00:00:00 2001
From: Mark Dickinson <mdickinson@enthought.com>
Date: Mon, 4 Mar 2024 13:47:57 +0000
Subject: [PATCH] Fix Traits build error on Python 3.13 (#1767)

This PR updates the core test workflow to run tests on the
in-development 3.13 version of Python, and fixes use of the now-removed
`Py_TRASHCAN_SAFE_BEGIN/END` macros.

Fixes #1765.
---
 .github/workflows/run-core-traits-tests.yml |  2 +-
 traits/ctraits.c                            | 16 ++++++++++++++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/run-core-traits-tests.yml b/.github/workflows/run-core-traits-tests.yml
index 5693f85b3..3728d3881 100644
--- a/.github/workflows/run-core-traits-tests.yml
+++ b/.github/workflows/run-core-traits-tests.yml
@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
 
     runs-on: ${{ matrix.os }}
 
diff --git a/traits/ctraits.c b/traits/ctraits.c
index 6fda77071..f4821a282 100644
--- a/traits/ctraits.c
+++ b/traits/ctraits.c
@@ -808,10 +808,18 @@ static void
 has_traits_dealloc(has_traits_object *obj)
 {
     PyObject_GC_UnTrack(obj);
+#if PY_VERSION_HEX < 0x03080000
     Py_TRASHCAN_SAFE_BEGIN(obj);
+#else
+    Py_TRASHCAN_BEGIN(obj, has_traits_dealloc);
+#endif
     has_traits_clear(obj);
     Py_TYPE(obj)->tp_free((PyObject *)obj);
+#if PY_VERSION_HEX < 0x03080000
     Py_TRASHCAN_SAFE_END(obj);
+#else
+    Py_TRASHCAN_END
+#endif
 }
 
 /*-----------------------------------------------------------------------------
@@ -3006,10 +3014,18 @@ static void
 trait_dealloc(trait_object *trait)
 {
     PyObject_GC_UnTrack(trait);
+#if PY_VERSION_HEX < 0x03080000
     Py_TRASHCAN_SAFE_BEGIN(trait);
+#else
+    Py_TRASHCAN_BEGIN(trait, trait_dealloc);
+#endif
     trait_clear(trait);
     Py_TYPE(trait)->tp_free((PyObject *)trait);
+#if PY_VERSION_HEX < 0x03080000
     Py_TRASHCAN_SAFE_END(trait);
+#else
+    Py_TRASHCAN_END
+#endif
 }
 
 /*-----------------------------------------------------------------------------