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 9d67d80789fc983ca7bd50b967cf11f70c0710c5..00d40d651952003b7ba42d403d13046ff8fb4e6d 100644 (file)
--- a/Doc/library/functions.rst
+++ b/Doc/library/functions.rst
@@ -1671,7 +1671,7 @@ 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
 
@@ -1700,6 +1700,13 @@ 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.