all: implement black as code formatter

passbook/admin/forms/users.py

@@ -12,10 +12,10 @@ class UserForm(forms.ModelForm):
     class Meta:
 
         model = User
-        fields = ['username', 'name', 'email', 'is_staff', 'is_active', 'attributes']
+        fields = ["username", "name", "email", "is_staff", "is_active", "attributes"]
         widgets = {
-            'name': forms.TextInput,
+            "name": forms.TextInput,
         }
         field_classes = {
-            'attributes': YAMLField,
+            "attributes": YAMLField,
         }