From f0b5f0900d164846351435980b096a8ae8dbf9e1 Mon Sep 17 00:00:00 2001
From: Taeknology <20297177+Taeknology@users.noreply.github.com>
Date: Wed, 10 Jun 2026 19:10:15 +0900
Subject: [PATCH] gh-149716: Document PySlot_DATA for Py_mod_gil and
 Py_mod_multiple_interpreters (GH-150053)

Add short code examples mirroring the existing Py_mod_abi example,
so it is clear which slot definition macro (PySlot_DATA, PySlot_INT64,
or PySlot_UINT64) to use for these two slots.
(cherry picked from commit 11c93d6df3c8cc6b533da3e85bded37102497ef5)

Co-authored-by: Taeknology <20297177+Taeknology@users.noreply.github.com>
---
 Doc/c-api/module.rst | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/Doc/c-api/module.rst b/Doc/c-api/module.rst
index 20fd66e35a0d4d6..9f68abba66bc5d6 100644
--- a/Doc/c-api/module.rst
+++ b/Doc/c-api/module.rst
@@ -247,6 +247,15 @@ Feature slots
    If ``Py_mod_multiple_interpreters`` is not specified, the import
    machinery defaults to ``Py_MOD_MULTIPLE_INTERPRETERS_SUPPORTED``.
 
+   For historical reasons, the values are declared as pointers (``void *``).
+   When using :c:type:`PySlot` arrays, use :c:macro:`PySlot_DATA` for
+   :c:macro:`!Py_mod_multiple_interpreters`:
+
+   .. code-block:: c
+
+      PySlot_DATA(Py_mod_multiple_interpreters,
+                  Py_MOD_PER_INTERPRETER_GIL_SUPPORTED)
+
    .. versionadded:: 3.12
 
 .. c:macro:: Py_mod_gil
@@ -272,6 +281,14 @@ Feature slots
    If ``Py_mod_gil`` is not specified, the import machinery defaults to
    ``Py_MOD_GIL_USED``.
 
+   For historical reasons, the values are declared as pointers (``void *``).
+   When using :c:type:`PySlot` arrays, use :c:macro:`PySlot_DATA` for
+   :c:macro:`!Py_mod_gil`:
+
+   .. code-block:: c
+
+      PySlot_DATA(Py_mod_gil, Py_MOD_GIL_NOT_USED)
+
    .. versionadded:: 3.13