bpo-36543: Mark cElementTree to be removed in 3.10

tiran · tiran · commit 99cd4efc9ea9 · 2020-05-15T19:41:03.000+02:00
Signed-off-by: Christian Heimes &lt;christian@python.org&gt;
diff --git a/Doc/library/xml.etree.elementtree.rst b/Doc/library/xml.etree.elementtree.rst
@@ -17,6 +17,8 @@ for parsing and creating XML data.
    This module will use a fast implementation whenever available.
    The :mod:`xml.etree.cElementTree` module is deprecated.
 
+.. versionchanged:: 3.9
+   The :mod:`xml.etree.cElementTree` will be removed in Python 3.10.
 
 .. warning::
 
diff --git a/Doc/whatsnew/3.9.rst b/Doc/whatsnew/3.9.rst
@@ -626,6 +626,10 @@ Deprecated
   `parso`_.
   (Contributed by Carl Meyer in :issue:`40360`.)
 
+* The :mod:`xml.etree.cElementTree` module has been deprecated since Python
+  3.3 and is scheduled to be removed in Python 3.10.
+  (Contributed by Serhiy Storchaka and Christian Heimes in :issue:`36543`)
+
 .. _LibCST: https://libcst.readthedocs.io/
 .. _parso: https://parso.readthedocs.io/
 
diff --git a/Lib/xml/etree/cElementTree.py b/Lib/xml/etree/cElementTree.py
@@ -1,3 +1,12 @@
 # Deprecated alias for xml.etree.ElementTree
 
 from xml.etree.ElementTree import *
+
+from warnings import warn as _warn
+
+_warn(
+    "xml.etree.cElementTree is deprecated, use xml.etree.ElementTree instead",
+    PendingDeprecationWarning
+)
+
+del _warn
diff --git a/Misc/NEWS.d/next/Library/2020-05-05-13-51-07.bpo-36543.4j7Rn3.rst b/Misc/NEWS.d/next/Library/2020-05-05-13-51-07.bpo-36543.4j7Rn3.rst
@@ -0,0 +1,2 @@
+Re-add :mod:`xml.etree.cElementTree`, deprecate it in 3.9, and schedule it
+for removal in 3.10.

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Re-add :mod:`xml.etree.cElementTree`, deprecate it in 3.9, and schedule it
	`2`	`+for removal in 3.10.`