def test_non_empty(self):
        ns = argparse.Namespace(x=1, y=2)
        self.assertEqual('x' in ns, True)
        self.assertEqual('x' not in ns, False)
        self.assertEqual('y' in ns, True)
        self.assertEqual('' in ns, False)
        self.assertEqual('xx' in ns, False)
        self.assertEqual(ns in 'z', False)

# =====================
# Help formatting tests
# =====================
dataset/ETHPy150Open amrdraz/kodr/app/brython/www/src/Lib/test/test_argparse.py/TestNamespaceContainsSimple.test_non_empty/swapped operands of `in`