Minor fix

src/ifcopenshell-python/ifcopenshell/api/sequence/cascade_schedule.py

@@ -44,7 +44,7 @@ class Usecase:
                 else:
                     print("... is a predecessor to ...", debug_task)
             print("... which is cyclically a predecessor to ...", task)
-            raise Exception("Recursive tasks found. Could not cascade schedule.")
+            raise RecursionError("Recursive tasks found. Could not cascade schedule.")
 
         if not task.TaskTime:
             return

src/ifcopenshell-python/ifcopenshell/api/sequence/recalculate_schedule.py

@@ -62,7 +62,7 @@ class Usecase:
                 break # We have an infinite loop due to a cyclic graph
 
         if is_cyclic:
-            raise Exception("Task graph is cyclic and so critical path method cannot be performed.")
+            raise RecursionError("Task graph is cyclic and so critical path method cannot be performed.")
             return
 
         self.pending_nodes = set(self.g.nodes)