reformat code

billard/migrations/0003_client.py

@@ -2,13 +2,13 @@
 # Generated by Django 1.10.5 on 2017-02-04 05:48
 from __future__ import unicode_literals
 
-from django.db import migrations, models
-import django.db.models.deletion
 import uuid
 
+import django.db.models.deletion
+from django.db import migrations, models
+
 
 class Migration(migrations.Migration):
-
     dependencies = [
         ('billard', '0002_location'),
     ]