Issue #14288: Serialization support for builtin iterators.
diff --git a/Lib/test/seq_tests.py b/Lib/test/seq_tests.py
index f655c29..f185a82 100644
--- a/Lib/test/seq_tests.py
+++ b/Lib/test/seq_tests.py
@@ -4,6 +4,7 @@
import unittest
import sys
+import pickle
# Various iterables
# This is used for checking the constructor (here and in test_deque.py)
@@ -388,3 +389,9 @@
self.assertEqual(a.index(0, -4*sys.maxsize, 4*sys.maxsize), 2)
self.assertRaises(ValueError, a.index, 0, 4*sys.maxsize,-4*sys.maxsize)
self.assertRaises(ValueError, a.index, 2, 0, -10)
+
+ def test_pickle(self):
+ lst = self.type2test([4, 5, 6, 7])
+ lst2 = pickle.loads(pickle.dumps(lst))
+ self.assertEqual(lst2, lst)
+ self.assertNotEqual(id(lst2), id(lst))