From 6db1a8a85f4ced41d022ae3dafab32d4915f16db Mon Sep 17 00:00:00 2001
From: Dion Moult <dion@thinkmoult.com>
Date: Sun, 22 Aug 2021 11:04:39 +1000
Subject: [PATCH] Minor fix

---
 src/ifcopenshell-python/ifcopenshell/util/attribute.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ifcopenshell-python/ifcopenshell/util/attribute.py b/src/ifcopenshell-python/ifcopenshell/util/attribute.py
index 5d9ebbc0f0..28b4d4a530 100644
--- a/src/ifcopenshell-python/ifcopenshell/util/attribute.py
+++ b/src/ifcopenshell-python/ifcopenshell/util/attribute.py
@@ -10,7 +10,9 @@ def get_primitive_type(attribute_or_data_type):
     elif data_type.find("<set") == 0:
         return ("set", get_primitive_type(data_type[data_type[1:].find("<")+1:]))
     elif data_type.find("<select") == 0:
-        return ("select", get_primitive_type(data_type[data_type[1:].find("<")+1:]))
+        select_definition = data_type[data_type.find("(")+1:data_type.find(")")].split("|")
+        select_types = [get_primitive_type(d.strip()) for d in select_definition]
+        return ("select", tuple(select_types))
     elif "<entity" in data_type:
         return "entity"
     elif "<string>" in data_type: