Organise imports using isort --profile black

nummi/main/models.py

@@ -1,11 +1,12 @@
 import pathlib
-from datetime import date
 import uuid
+from datetime import date
+
+from django.core.files.storage import Storage
+from django.core.validators import FileExtensionValidator
 from django.db import models
 from django.forms import ModelForm
-from django.core.validators import FileExtensionValidator
 from django.utils.translation import gettext as _
-from django.core.files.storage import Storage
 
 
 class Category(models.Model):