You can now export container data from IFCCSV

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

@@ -83,6 +83,11 @@ def get_material(element):
                 return relationship.RelatingMaterial
 
 
+def get_container(element):
+    if hasattr(element, "ContainedInStructure") and element.ContainedInStructure:
+        return element.ContainedInStructure[0].RelatingStructure
+
+
 def replace_attribute(element, old, new):
     for i, attribute in enumerate(element):
         if attribute == old:

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

@@ -227,6 +227,14 @@ class Selector:
             except:
                 return
             key = ".".join(key.split(".")[1:])
+        elif "." in key and key.split(".")[0] == "container":
+            try:
+                element = ifcopenshell.util.element.get_container(element)
+                if not element:
+                    return None
+            except:
+                return
+            key = ".".join(key.split(".")[1:])
         info = element.get_info()
         if key in info:
             return info[key]