bpo-42840: Document providing kwargs to type. (GH-24173)

Co-authored-by: Ken Jin <28750310+Fidget-Spinner@users.noreply.github.com>
(cherry picked from commit 72fcd14a82369ed32a5846d76f50e3026cf4eec2)

Co-authored-by: Erik Soma <stillusingirc@gmail.com>

diff --git a/Doc/library/functions.rst b/Doc/library/functions.rst
index 990fc10c8cc9745bc1146b97549b88fc2f650f12..ef51782205b45eac4607339778050a74d44cca3a 100644 (file)
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1675,7 +1675,7 @@ are always available.  They are listed here in alphabetical order.
 
 
 .. class:: type(object)
-           type(name, bases, dict)
+           type(name, bases, dict, **kwds)
 
    .. index:: object: type
 
@@ -1704,6 +1704,13 @@ are always available.  They are listed here in alphabetical order.
 
    See also :ref:`bltin-type-objects`.
 
+   Keyword arguments provided to the three argument form are passed to the
+   appropriate metaclass machinery (usually :meth:`~object.__init_subclass__`)
+   in the same way that keywords in a class
+   definition (besides *metaclass*) would.
+
+   See also :ref:`class-customization`.
+
    .. versionchanged:: 3.6
       Subclasses of :class:`type` which don't override ``type.__new__`` may no
       longer use the one-argument form to get the type of an object.