May 12, 2024 · May 10, 2024 · May 12, 2024 · May 12, 2024
diff --git a/Lib/test/test_builtin.py b/Lib/test/test_builtin.py
        with self.assertRaisesRegex(TypeError, msg):
            not NotImplemented

    def test_singleton_attribute_access(self):
        for singleton in (NotImplemented, Ellipsis):
            with self.subTest(singleton):
                self.assertIs(type(singleton), singleton.__class__)
                self.assertIs(type(singleton).__class__, type)

                # Missing instance attributes:
                with self.assertRaises(AttributeError):
                    singleton.prop = 1
                with self.assertRaises(AttributeError):
                    singleton.prop

                # Missing class attributes:
                with self.assertRaises(TypeError):
                    type(singleton).prop = 1
                with self.assertRaises(AttributeError):
                    type(singleton).prop


 class TestBreakpoint(unittest.TestCase):
    def setUp(self):
Original file line number	Diff line number	Diff line change
Expand Up		@@ -2138,6 +2138,24 @@ def test_bool_notimplemented(self):
		with self.assertRaisesRegex(TypeError, msg):
		not NotImplemented

		def test_singleton_attribute_access(self):
		for singleton in (NotImplemented, Ellipsis):
		with self.subTest(singleton):
		self.assertIs(type(singleton), singleton.__class__)
		self.assertIs(type(singleton).__class__, type)

		# Missing instance attributes:
		with self.assertRaises(AttributeError):
		singleton.prop = 1
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		with self.assertRaises(AttributeError):
		singleton.prop

		# Missing class attributes:
		with self.assertRaises(TypeError):
		type(singleton).prop = 1
		with self.assertRaises(AttributeError):
		type(singleton).prop


		class TestBreakpoint(unittest.TestCase):
		def setUp(self):
Expand Down