From: Benjamin Peterson <benjamin@python.org>
Date: Tue, 9 Aug 2011 21:07:01 +0000 (-0500)
Subject: note mutating tp_dict is bad (closes #12719)
X-Git-Tag: v3.2.2rc1~16
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=77c4fd01dd3fa9b7830ca3dcd1506565352d32f3;p=thirdparty%2FPython%2Fcpython.git

note mutating tp_dict is bad (closes #12719)
---

diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index 4a6335c86989..68ca9adaa9b0 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -745,6 +745,11 @@ type objects) *must* have the :attr:`ob_size` field.
    This field is not inherited by subtypes (though the attributes defined in here
    are inherited through a different mechanism).
 
+   .. warning::
+
+      It is not safe to use :c:func:`PyDict_SetItem` on or otherwise modify
+      :attr:`tp_dict` with the dictionary C-API.
+
 
 .. c:member:: descrgetfunc PyTypeObject.tp_descr_get