fix:import-duplicate-usernames

kolibri/core/auth/management/commands/bulkimportusers.py

@@ -274,7 +274,9 @@ def get_username(self, row):
         lowercase_username = username.lower()
 
         # Check if a user with the provided username exists (case-insensitive)
-        existing_user = FacilityUser.objects.filter(username__iexact=lowercase_username).first()
+        existing_user = FacilityUser.objects.filter(
+            username__iexact=lowercase_username
+        ).first()
         # Convert existing keys in self.users to lowercase
         if existing_user and uuid == "":
             return None  # Duplicate username

kolibri/core/auth/test/test_bulk_import.py

@@ -252,6 +252,7 @@ def test_password_is_required(self):
         assert "'value': '*'" in result[1]
         assert "new_coach" in result[1]
         assert "'row': 2" in result[1]
+
     def test_case_insensitive_usernames(self):
         _, first_filepath = tempfile.mkstemp(suffix=".csv")
         rows = [
@@ -282,10 +283,10 @@ def test_case_insensitive_usernames(self):
         ]
         self.create_csv(first_filepath, rows)
         call_command("bulkimportusers", first_filepath, facility=self.facility.id)
-    
+
         # Retrieve the user(s)
         users = FacilityUser.objects.filter(username__iexact="peter")
-    
+
         # Ensure that only one user is created, and it has the latest password
         assert users.count() == 1