Revert a premature patch for issue #14010 (changeset 846bd418aee5).

Lib/test/test_itertools.py

@@ -1808,121 +1808,6 @@ class SubclassWithKwargsTest(unittest.TestCase):
                 self.assertNotIn("does not take keyword arguments", err.args[0])
 
 
-class TestRecursionLimit(unittest.TestCase):
-    # Issue #14010
-    recursionlimit = sys.getrecursionlimit()
-
-    def test_accumulate(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = accumulate(it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_chain(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = chain(it, ())
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_compress(self):
-        data = (0, 1)
-        selectors = (True, True)
-        it = data
-        for _ in range(self.recursionlimit):
-            it = compress(it, selectors)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-        it = selectors
-        for _ in range(self.recursionlimit):
-            it = compress(data, it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_cycle(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = cycle(it)
-        with self.assertRaises(RuntimeError):
-            for _ in range(3):
-                next(it)
-        del it
-
-    def test_dropwhile(self):
-        it = (0, 1, 0)
-        for _ in range(self.recursionlimit):
-            it = dropwhile(bool, it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_filterfalse(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = filterfalse(bool, it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_groupby(self):
-        key = operator.itemgetter(0)
-        it = ((0, []), (1, []))
-        for _ in range(self.recursionlimit):
-            it = groupby(it, key)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_islice(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = islice(it, 2)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_starmap(self):
-        it = 'ab'
-        for _ in range(self.recursionlimit):
-            it = starmap(tuple, it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_takewhile(self):
-        it = (1, 0)
-        for _ in range(self.recursionlimit):
-            it = takewhile(bool, it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-    def test_zip_longest(self):
-        it = (0, 1)
-        for _ in range(self.recursionlimit):
-            it = zip_longest(it)
-        with self.assertRaises(RuntimeError):
-            for _ in it:
-                pass
-        del it
-
-
 libreftest = """ Doctest for examples in the library reference: libitertools.tex
 
 
@@ -2157,7 +2042,7 @@ __test__ = {'libreftest' : libreftest}
 def test_main(verbose=None):
     test_classes = (TestBasicOps, TestVariousIteratorArgs, TestGC,
                     RegressionTests, LengthTransparency,
-                    SubclassWithKwargsTest, TestExamples, TestRecursionLimit)
+                    SubclassWithKwargsTest, TestExamples)
     support.run_unittest(*test_classes)
 
     # verify reference counting