Add docs for __func__ and __self__ on methods.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 8ae94af..cc71420 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -555,6 +555,10 @@
.. versionchanged:: 2.2
:attr:`im_self` used to refer to the class that defined the method.
+ .. versionchanged:: 2.6
+ For 3.0 forward-compatibility, :attr:`im_func` is also available as
+ :attr:`__func__`, and :attr:`im_self` as :attr:`__self__`.
+
.. index::
single: __doc__ (method attribute)
single: __name__ (method attribute)