From 08a467b537b3d9b499d060697e79b3950374ab0f Mon Sep 17 00:00:00 2001
From: Jelle Zijlstra <jelle.zijlstra@gmail.com>
Date: Wed, 25 Sep 2024 23:26:03 -0700
Subject: [PATCH] gh-101100: Make __subclasses__ doctest stable (#124577)

Using a standard library class makes this test difficult to maintain
as other tests and other parts of the stdlib may create subclasses,
which may still be alive when this test runs depending on GC timing.
---
 Doc/reference/datamodel.rst | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index a6348eda389..5ce6bf17db4 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1109,8 +1109,10 @@ have the following two methods available:
 
    .. doctest::
 
-      >>> int.__subclasses__()
-      [<class 'bool'>, <enum 'IntEnum'>, <flag 'IntFlag'>, <class 're._constants._NamedIntConstant'>, <class 're._ZeroSentinel'>]
+      >>> class A: pass
+      >>> class B(A): pass
+      >>> A.__subclasses__()
+      [<class 'B'>]
 
 Class instances
 ---------------