bpo-17422: slightly more precise language (GH-18682)



diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 8be432d..c683d99 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1956,7 +1956,7 @@
 the final class object is created the namespace is copied into a new ``dict``.
 
 If the metaclass has no ``__prepare__`` attribute, then the class namespace
-is initialised as an empty :func:`dict`.
+is initialised as an empty ordered mapping.
 
 .. seealso::