Update docs. (#19922)

Author: serhiy-storchaka

Doc/library/xml.etree.elementtree.rst

@@ -15,6 +15,8 @@ for parsing and creating XML data.
 
 .. versionchanged:: 3.3
    This module will use a fast implementation whenever available.
+
+.. versiondeprecated:: 3.3
    The :mod:`xml.etree.cElementTree` module is deprecated.
 
 

Doc/whatsnew/3.9.rst

@@ -670,11 +670,6 @@ Removed
   module have been removed.  They were deprecated in Python 3.2.
   Use ``iter(x)`` or ``list(x)`` instead of ``x.getchildren()`` and
   ``x.iter()`` or ``list(x.iter())`` instead of ``x.getiterator()``.
-  The ``xml.etree.cElementTree`` module has been removed,
-  use the :mod:`xml.etree.ElementTree` module instead.
-  Since Python 3.3 the ``xml.etree.cElementTree`` module has been deprecated,
-  the ``xml.etree.ElementTree`` module uses a fast implementation whenever
-  available.
   (Contributed by Serhiy Storchaka in :issue:`36543`.)
 
 * The old :mod:`plistlib` API has been removed, it was deprecated since Python

Misc/NEWS.d/3.9.0a1.rst

@@ -3372,7 +3372,7 @@ markup and any values in the message. Patch by Paul Ganssle
 .. section: Library
 
 Removed methods Element.getchildren(), Element.getiterator() and
-ElementTree.getiterator() and the xml.etree.cElementTree module.
+ElementTree.getiterator().
 
 ..