core -- Apply black + isort to all files

kfet/migrations/0053_created_at.py

@@ -1,20 +1,18 @@
 # -*- coding: utf-8 -*-
 from __future__ import unicode_literals
 
-from django.db import migrations, models
 import django.utils.timezone
+from django.db import migrations, models
 
 
 class Migration(migrations.Migration):
 
-    dependencies = [
-        ('kfet', '0052_category_addcost'),
-    ]
+    dependencies = [("kfet", "0052_category_addcost")]
 
     operations = [
         migrations.AlterField(
-            model_name='account',
-            name='created_at',
+            model_name="account",
+            name="created_at",
             field=models.DateTimeField(default=django.utils.timezone.now),
-        ),
+        )
     ]