From da0847048aa7f934573fa449cea8643def056aa5 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Wed, 27 Mar 2019 08:02:28 +0200
Subject: bpo-36431: Use PEP 448 dict unpacking for merging two dicts.
 (GH-12553)

---
 Lib/xml/etree/ElementTree.py | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

(limited to 'Lib/xml/etree/ElementTree.py')

diff --git a/Lib/xml/etree/ElementTree.py b/Lib/xml/etree/ElementTree.py
index c1cf483cf5..b5ad8e1d14 100644
--- a/Lib/xml/etree/ElementTree.py
+++ b/Lib/xml/etree/ElementTree.py
@@ -169,10 +169,8 @@ class Element:
         if not isinstance(attrib, dict):
             raise TypeError("attrib must be dict, not %s" % (
                 attrib.__class__.__name__,))
-        attrib = attrib.copy()
-        attrib.update(extra)
         self.tag = tag
-        self.attrib = attrib
+        self.attrib = {**attrib, **extra}
         self._children = []
 
     def __repr__(self):
@@ -451,8 +449,7 @@ def SubElement(parent, tag, attrib={}, **extra):
     additional attributes given as keyword arguments.
 
     """
-    attrib = attrib.copy()
-    attrib.update(extra)
+    attrib = {**attrib, **extra}
     element = parent.makeelement(tag, attrib)
     parent.append(element)
     return element
-- 
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