Added types.NoneType & types.NotImplementedType to whatsnew and the docs

Author: Bas van Beek

Doc/library/constants.rst

@@ -19,14 +19,15 @@ A small number of constants live in the built-in namespace.  They are:
 
 .. data:: None
 
-   The sole value of the type ``NoneType``.  ``None`` is frequently used to
+   The sole value of the type :data:`types.NoneType`. ``None`` is frequently used to
    represent the absence of a value, as when default arguments are not passed to a
    function. Assignments to ``None`` are illegal and raise a :exc:`SyntaxError`.
 
 
 .. data:: NotImplemented
 
-   Special value which should be returned by the binary special methods
+   Sole value of the type :data:`types.NotImplementedType` and a
+   special value which should be returned by the binary special methods
    (e.g. :meth:`__eq__`, :meth:`__lt__`, :meth:`__add__`, :meth:`__rsub__`,
    etc.) to indicate that the operation is not implemented with respect to
    the other type; may be returned by the in-place binary special methods

Doc/library/types.rst

@@ -103,6 +103,13 @@ If you instantiate any of these types, note that signatures may vary between Pyt
 
 Standard names are defined for the following types:
 
+.. data:: NoneType
+
+   The type of :data:`None`.
+
+   .. versionadded:: 3.10
+
+
 .. data:: FunctionType
           LambdaType
 
@@ -186,6 +193,13 @@ Standard names are defined for the following types:
    .. versionadded:: 3.7
 
 
+.. data:: NotImplementedType
+
+   The type of :data:`NotImplemented`.
+
+   .. versionadded:: 3.10
+
+
 .. data:: MethodDescriptorType
 
    The type of methods of some built-in data types such as :meth:`str.join`.

Doc/whatsnew/3.10.rst

@@ -148,7 +148,8 @@ arguments passed to the Python executable.
 types
 -----
 
-Reintroduced the :data:`types.EllipsisType` class.
+Reintroduced the :data:`types.EllipsisType`, :data:`types.NoneType`
+and :data:`types.NotImplementedType` classes.
 (Contributed by Bas van Beek in :issue:`41810`.)
 
 unittest

Misc/NEWS.d/next/Library/2020-09-20-15-14-05.bpo-41810.7l8lyV.rst

@@ -1 +1,2 @@
-:data:`types.EllipsisType` has been reintroduced.
+:data:`types.EllipsisType`, :data:`types.EllipsisType` and
+:data:`types.NoneType` have been reintroduced.