PEP fixes

InvenTree/users/admin.py

@@ -9,10 +9,10 @@ from django.contrib.auth import get_user_model
 from django.contrib.admin.widgets import FilteredSelectMultiple
 from django.contrib.auth.models import Group
 
-User = get_user_model()
-
 from users.models import RuleSet
 
+User = get_user_model()
+
 
 class RuleSetInline(admin.TabularInline):
     model = RuleSet

InvenTree/users/models.py

@@ -139,6 +139,7 @@ class RuleSet(models.Model):
 
         return self.RULESET_MODELS.get(self.name, [])
 
+
 def update_group_roles(group):
     """
     Update group roles:
@@ -148,10 +149,10 @@ def update_group_roles(group):
     """
 
     # List of permissions which must be added to the group
-    permissions_to_add = []
+    # permissions_to_add = []
 
     # List of permissions which must be removed from the group
-    permissions_to_delete = []
+    # permissions_to_delete = []
 
     # Get all the rulesets associated with this group
     for r in RuleSet.RULESET_CHOICES: