Passes extension tests

openfisca · Jul 10, 2023 · f131701 · f131701
1 parent 945eaa6
commit f131701
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/openfisca_core/variables/variable.py b/openfisca_core/variables/variable.py
@@ -365,7 +365,10 @@ def is_input_variable(self):
 
     @classmethod
     def get_introspection_data(cls):
-        return cls.introspection_data
+        try:
+            return cls.introspection_data
+        except AttributeError:
+            return '', None, 0
 
     def get_formula(
         self,