--- a/buses.py	Thu Dec 14 13:59:40 2017 +0200
+++ b/buses.py	Sun Jan 07 00:56:15 2018 +0200
@@ -434,7 +434,7 @@
 		with gtfs_zip.open('stop_times.txt') as file:
 			progress = 0
 			for row in read_csv(map(bytes.decode, file)):
-				if int(row.get('pickup_type', 0)) and int(row.get('drop_off_type', 0)):
+				if int(row.get('pickup_type', '') or '0') and int(row.get('drop_off_type', '') or '0'):
 					continue
 				trip = all_trips[transform_trip_reference(row['trip_id'])]
 				arrival_time = read_time(row['arrival_time'])