% hg diff -p
diff -r 5ef49659935f Lib/test/test_xml_etree.py
--- a/Lib/test/test_xml_etree.py        Fri Dec 28 19:09:41 2012 +0100
+++ b/Lib/test/test_xml_etree.py        Sat Dec 29 16:05:26 2012 +0000
@@ -16,6 +16,7 @@
 
 import html
 import io
+import pickle
 import sys
 import unittest
 import weakref
@@ -1768,6 +1769,9 @@ class BasicElementTest(unittest.TestCase
         self.assertEqual(flag, True)
         self.assertEqual(wref(), None)
 
+    def test_pickling(self):
+        # issue #16076: the C implementation wasn't pickleable.
+        (pickle.dumps(ET.Element('foo')))
 
 class ElementTreeTest(unittest.TestCase):
     def test_istype(self):
% ./python -mtest -f =(echo test_{__all__,xml_etree}) ; ./python -mtest test_xml_etree
[1/2] test___all__
[2/2] test_xml_etree
test test_xml_etree failed -- Traceback (most recent call last):
  File "/home/danielsh/src/py/t1/Lib/test/test_xml_etree.py", line 1774, in test_pickling
    (pickle.dumps(ET.Element('foo')))
_pickle.PicklingError: Can't pickle <class 'xml.etree.ElementTree.Element'>: it's not the same object as xml.etree.ElementTree.Element

1 test OK.
1 test failed:
    test_xml_etree
zsh: exit 1     ./python -mtest -f =(echo test_{__all__,xml_etree})
[1/1] test_xml_etree
1 test OK.
%