bpo-38524: clarify example a bit and improve formatting (GH-17406)
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 6809850..b22ed92 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1657,13 +1657,16 @@
.. note::
- ``__set_name__`` is only called implicitly as part of the ``type`` constructor, so
- it will need to be called explicitly with the appropriate parameters when a
- descriptor is added to a class after initial creation::
+ :meth:`__set_name__` is only called implicitly as part of the
+ :class:`type` constructor, so it will need to be called explicitly with
+ the appropriate parameters when a descriptor is added to a class after
+ initial creation::
+ class A:
+ pass
descr = custom_descriptor()
- cls.attr = descr
- descr.__set_name__(cls, 'attr')
+ A.attr = descr
+ descr.__set_name__(A, 'attr')
See :ref:`class-object-creation` for more details.