Simplify code

agenda/travel.py

@@ -1,5 +1,6 @@
 """Travel."""
 
+import decimal
 import json
 import os
 import typing
@@ -43,7 +44,16 @@ def route_distances_as_json(route_distances: RouteDistances) -> str:
 def parse_yaml(travel_type: str, data_dir: str) -> TravelList:
     """Parse flights YAML and return list of travel."""
     filepath = os.path.join(data_dir, travel_type + ".yaml")
-    return typing.cast(TravelList, yaml.safe_load(open(filepath)))
+    items: TravelList = yaml.safe_load(open(filepath))
+    if not all(isinstance(item, dict) for item in items):
+        return items
+
+    for item in items:
+        price = item.get("price")
+        if price:
+            item["price"] = decimal.Decimal(price)
+
+    return items
 
 
 def get_flights(data_dir: str) -> list[Event]:

agenda/trip.py

@@ -101,11 +101,6 @@ def build_trip_list(
         key=depart_datetime,
     )
 
-    for item in travel_items:
-        price = item.get("price")
-        if price:
-            item["price"] = decimal.Decimal(price)
-
     data = {
         "travel": travel_items,
         "accommodation": travel.parse_yaml("accommodation", data_dir),