pythongh-123242: Note that type.__annotations__ may not exist (python#124557)

JelleZijlstra · web-flow · commit 99b23c64de30 · 2024-09-25T16:08:14.000-07:00
Closes python#123242. The real criterion is that the attribute does not exist on heap types, but I don't think we should discuss heap vs. static types in the language reference.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
@@ -1045,7 +1045,8 @@ Special attributes
 
           Accessing the :attr:`!__annotations__` attribute of a class
           object directly may yield incorrect results in the presence of
-          metaclasses. Use :func:`annotationlib.get_annotations` to
+          metaclasses. In addition, the attribute may not exist for
+          some classes. Use :func:`annotationlib.get_annotations` to
           retrieve class annotations safely.
 
        .. versionchanged:: 3.14
