diff -r 60045b362d71 -r ca1a0ea81cf6 compute-regions.py
--- a/compute-regions.py	Wed Jun 28 12:20:05 2017 +0300
+++ b/compute-regions.py	Wed Jun 28 13:11:37 2017 +0300
@@ -32,20 +32,19 @@
 bus_stop_districts = {}
 
 for name, stop_id in representatives.items():
-	if stop_id is None:
-		continue
-	if stop_id not in bus_stops:
-		print('Representative %r for region %r not found in schedule' % (stop_id, name), file = sys.stderr)
-	else:
-		for district_shape in district_shapes:
-			if district_shape.sisältää_pisteen(bus_stops[stop_id]):
-				assert name not in districts
-				districts[name] = district_shape
-				district_shapes.remove(district_shape)
-				bus_stop_districts[stop_id] = name
-				break
+	if stop_id:
+		if stop_id not in bus_stops:
+			print('Representative %r for region %r not found in schedule' % (stop_id, name), file = sys.stderr)
 		else:
-			print('Cannot find a shape for %r' % name, file = sys.stderr)
+			for district_shape in district_shapes:
+				if district_shape.sisältää_pisteen(bus_stops[stop_id]):
+					assert name not in districts
+					districts[name] = district_shape
+					district_shapes.remove(district_shape)
+					bus_stop_districts[stop_id] = name
+					break
+			else:
+				print('Cannot find a shape for %r' % name, file = sys.stderr)
 
 for stop_id, stop_position in bus_stops.items():
 	for district, shape in districts.items():
@@ -55,7 +54,7 @@
 	else:
 		bus_stop_districts[stop_id] = None
 
-covered = sum(int(bool(k)) for k in bus_stop_districts.values())
+covered = sum(1 if value else 0 for value in bus_stop_districts.values())
 total = len(bus_stops)
 print('%.1f%% bus stops covered.' % (covered * 100 / total), file = sys.stderr)
 json.dump(bus_stop_districts, sys.stdout, indent = 2)