config.py: separate getattr and get_subconfig

test/test_option.py

@@ -104,7 +104,7 @@ def test_unknown_option():
     od2 = OptionDescription('od', '', [od1])
     api = getapi(Config(od2))
     # test is an option, not an optiondescription
-    raises(AttributeError, "api.option('od.test.unknown').value.get()")
+    raises(TypeError, "api.option('od.test.unknown').value.get()")
     # unknown is an unknown option
     raises(AttributeError, "api.option('unknown').value.get()")
     # unknown is an unknown option

test/test_slots.py

@@ -156,7 +156,7 @@ def test_slots_config():
                           'a',
                           None,
                           ConfigBag(c))
-    sc = c.getattr('a', option_bag)
+    sc = c.get_subconfig('a', option_bag)
     assert isinstance(sc, SubConfig)
     raises(AttributeError, "sc.x = 1")
     raises(AttributeError, "sc.cfgimpl_x = 1")