update serializers

billard/serializers.py

@@ -5,15 +5,16 @@ from rest_framework import serializers
 class ClientSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = Client
-        fields = ('id', 'location')
+        fields = ('id', 'location',)
 
 
 class LocationSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = Location
-        fields = ('name')
+        fields = ('name',)
+
 
 class TableSerializer(serializers.HyperlinkedModelSerializer):
     class Meta:
         model = Table
-        fields = ('client', 'number', 'name')
+        fields = ('client', 'number', 'name',)