diff --git a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_cant_segment.py b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_cant_segment.py
index 4371ba18e1..8bf5fb5f2b 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_cant_segment.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_cant_segment.py
@@ -393,22 +393,22 @@ def map_alignment_cant_segment(
     if not segment.is_a(expected_type):
         raise TypeError(f"Expected to see type '{expected_type}', instead received '{segment.is_a()}'.")
 
-    match segment.DesignParameters.PredefinedType:
-        case "CONSTANTCANT":
-            result = _map_constant_cant(file, segment.DesignParameters, rail_head_distance)
-        case "LINEARTRANSITION":
-            result = _map_linear_transition(file, segment.DesignParameters, rail_head_distance)
-        case "HELMERTCURVE":
-            result = _map_helmert_curve(file, segment.DesignParameters, rail_head_distance)
-        case "BLOSSCURVE":
-            result = _map_bloss_curve(file, segment.DesignParameters, rail_head_distance)
-        case "COSINECURVE":
-            result = _map_cosine_curve(file, segment.DesignParameters, rail_head_distance)
-        case "SINECURVE":
-            result = _map_sine_curve(file, segment.DesignParameters, rail_head_distance)
-        case "VIENNESEBEND":
-            result = _map_viennese_bend(file, segment.DesignParameters, rail_head_distance)
-        case _:
-            raise TypeError("Unexpected predefined type")
+    predefined_type = segment.DesignParameters.PredefinedType
+    if predefined_type == "CONSTANTCANT":
+        result = _map_constant_cant(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "LINEARTRANSITION":
+        result = _map_linear_transition(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "HELMERTCURVE":
+        result = _map_helmert_curve(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "BLOSSCURVE":
+        result = _map_bloss_curve(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "COSINECURVE":
+        result = _map_cosine_curve(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "SINECURVE":
+        result = _map_sine_curve(file, segment.DesignParameters, rail_head_distance)
+    elif predefined_type == "VIENNESEBEND":
+        result = _map_viennese_bend(file, segment.DesignParameters, rail_head_distance)
+    else:
+        raise TypeError(f"Unexpected predefined type: '{predefined_type}'.")
 
     return result
diff --git a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_horizontal_segment.py b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_horizontal_segment.py
index 2df95f8e88..9feb27e2f6 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_horizontal_segment.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_horizontal_segment.py
@@ -412,26 +412,26 @@ def map_alignment_horizontal_segment(file: ifcopenshell.file, segment: entity_in
     if not segment.is_a(expected_type):
         raise TypeError(f"Expected to see type '{expected_type}', instead received '{segment.is_a()}'.")
 
-    match segment.DesignParameters.PredefinedType:
-        case "LINE":
-            result = _map_line(file, segment.DesignParameters)
-        case "CIRCULARARC":
-            result = _map_circular_arc(file, segment.DesignParameters)
-        case "CLOTHOID":
-            result = _map_clothoid(file, segment.DesignParameters)
-        case "CUBIC":
-            result = _map_cubic(file, segment.DesignParameters)
-        case "HELMERTCURVE":
-            result = _map_helmert_curve(file, segment.DesignParameters)
-        case "BLOSSCURVE":
-            result = _map_bloss_curve(file, segment.DesignParameters)
-        case "COSINECURVE":
-            result = _map_cosine_curve(file, segment.DesignParameters)
-        case "SINECURVE":
-            result = _map_sine_curve(file, segment.DesignParameters)
-        case "VIENNESEBEND":
-            result = _map_viennese_bend(file, segment.DesignParameters)
-        case _:
-            raise TypeError("Unexpected predefined type")
+    predefined_type = segment.DesignParameters.PredefinedType
+    if predefined_type == "LINE":
+        result = _map_line(file, segment.DesignParameters)
+    elif predefined_type == "CIRCULARARC":
+        result = _map_circular_arc(file, segment.DesignParameters)
+    elif predefined_type == "CLOTHOID":
+        result = _map_clothoid(file, segment.DesignParameters)
+    elif predefined_type == "CUBIC":
+        result = _map_cubic(file, segment.DesignParameters)
+    elif predefined_type == "HELMERTCURVE":
+        result = _map_helmert_curve(file, segment.DesignParameters)
+    elif predefined_type == "BLOSSCURVE":
+        result = _map_bloss_curve(file, segment.DesignParameters)
+    elif predefined_type == "COSINECURVE":
+        result = _map_cosine_curve(file, segment.DesignParameters)
+    elif predefined_type == "SINECURVE":
+        result = _map_sine_curve(file, segment.DesignParameters)
+    elif predefined_type == "VIENNESEBEND":
+        result = _map_viennese_bend(file, segment.DesignParameters)
+    else:
+        raise TypeError(f"Unexpected predefined type: '{predefined_type}'.")
 
     return result
diff --git a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_vertical_segment.py b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_vertical_segment.py
index f2f654cf7c..e0ef68d40e 100644
--- a/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_vertical_segment.py
+++ b/src/ifcopenshell-python/ifcopenshell/api/alignment/map_alignment_vertical_segment.py
@@ -199,20 +199,21 @@ def map_alignment_vertical_segment(file: ifcopenshell.file, segment: entity_inst
     if not segment.is_a(expected_type):
         raise TypeError(f"Expected to see type '{expected_type}', instead received '{segment.is_a()}'.")
 
-    match segment.DesignParameters.PredefinedType:
-        case "CONSTANTGRADIENT":
-            result = _map_constant_gradient(file, segment.DesignParameters)
+    predefined_type = segment.DesignParameters.PredefinedType
 
-        case "PARABOLICARC":
-            result = _map_parabolic_arc(file, segment.DesignParameters)
+    if predefined_type == "CONSTANTGRADIENT":
+        result = _map_constant_gradient(file, segment.DesignParameters)
 
-        case "CIRCULARARC":
-            result = _map_circular_arc(file, segment.DesignParameters)
+    elif predefined_type == "PARABOLICARC":
+        result = _map_parabolic_arc(file, segment.DesignParameters)
 
-        case "CLOTHOID":
-            result = _map_clothoid(file, segment.DesignParameters)
+    elif predefined_type == "CIRCULARARC":
+        result = _map_circular_arc(file, segment.DesignParameters)
 
-        case _:
-            raise TypeError(f"Unexpected predefined type - got {segment.DesignParameters.PredefinedType}")
+    elif predefined_type == "CLOTHOID":
+        result = _map_clothoid(file, segment.DesignParameters)
+
+    else:
+        raise TypeError(f"Unexpected predefined type - got {segment.DesignParameters.PredefinedType}")
 
     return result