Method test_readonly

Lib/test/test_collections.py:399–411

(self)

        self.assertEqual(Point(), (10, 20))

    def test_readonly(self):
        Point = namedtuple('Point', 'x y')
        p = Point(11, 22)
        with self.assertRaises(AttributeError):
            p.x = 33
        with self.assertRaises(AttributeError):
            del p.x
        with self.assertRaises(TypeError):
            p[0] = 33
        with self.assertRaises(TypeError):
            del p[0]
        self.assertEqual(p.x, 11)
        self.assertEqual(p[0], 11)

    @unittest.skipIf(sys.flags.optimize >= 2,
                     "Docstrings are omitted with -O2 and above")