Method test_loopvar_in_only_one_scope

Lib/test/test_symtable.py:625–637

(self)

            self.get_identifiers_recursive(ch, res)

    def test_loopvar_in_only_one_scope(self):
        # ensure that the loop variable appears only once in the symtable
        comps = [
            "[x for x in [1]]",
            "{x for x in [1]}",
            "{x:x*x for x in [1]}",
        ]
        for comp in comps:
            with self.subTest(comp=comp):
                st = symtable.symtable(comp, "?", "exec")
                ids = []
                self.get_identifiers_recursive(st, ids)
                self.assertEqual(len([x for x in ids if x == 'x']), 1)


class CommandLineTest(unittest.TestCase):