IFC selector now uses "class" as a keyword to get the IFC class to disambiguate between "type" and "class".

src/ifcopenshell-python/ifcopenshell/util/selector.py

@@ -267,7 +267,9 @@ class Selector:
                 elif value.is_a("IfcMaterialConstituentSet"):
                     value = value.MaterialConstituents
             elif key == "container":
-                value = ifcopenshell.util.element.get_container(element)
+                value = ifcopenshell.util.element.get_container(value)
+            elif key == "class":
+                value = value.is_a()
             elif isinstance(value, ifcopenshell.entity_instance):
                 attribute = value.get_info().get(key, None)
 

src/ifcopenshell-python/test/util/test_selector.py

@@ -23,6 +23,11 @@ import ifcopenshell.util.selector as subject
 
 
 class TestGetElementValue(test.bootstrap.IFC4):
+    def test_selecting_an_elements_class_or_id_using_a_query(self):
+        element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
+        assert subject.get_element_value(element, "class") == "IfcWall"
+        assert subject.get_element_value(element, "id") == element.id()
+
     def test_selecting_an_elements_value_using_a_query(self):
         element = ifcopenshell.api.run("root.create_entity", self.file, ifc_class="IfcWall")
         element.Name = "Foobar"