gh-111545: Mention PEP 456 in PyHash_GetFuncDef() doc (#112647)

diff --git a/Doc/c-api/hash.rst b/Doc/c-api/hash.rst
index 4dc121d7fbaa9b44863ba3aab47ac0f414afa3ed..3bfaf8b9f54c14f25aadde878492fd4b87a580c6 100644 (file)
--- a/Doc/c-api/hash.rst
+++ b/Doc/c-api/hash.rst
@@ -45,4 +45,7 @@ See also the :c:member:`PyTypeObject.tp_hash` member.
 
    Get the hash function definition.
 
+   .. seealso::
+      :pep:`456` "Secure and interchangeable hash algorithm".
+
    .. versionadded:: 3.4