[lint] fix warnings not autofixed by ruff

app/controllers/userManager.py

@@ -1,14 +1,13 @@
 import logging
-
-logger = logging.getLogger(__name__)
-
 from fastapi import APIRouter, Depends, HTTPException, status
 from sqlmodel import Session, select
 
-from ..model.models import UserCreate, UserDB, UserResponse, UserUpdate
-from ..services.auth import auth_is_admin, get_password_hash
-from ..services.auth import get_current_user as auth_user
-from ..services.database import add_and_refresh, get_session
+from app.model.models import UserCreate, UserDB, UserResponse, UserUpdate
+from app.services.auth import auth_is_admin, get_password_hash
+from app.services.auth import get_current_user as auth_user
+from app.services.database import add_and_refresh, get_session
+
+logger = logging.getLogger(__name__)
 
 user_router = APIRouter(tags=["Users"], prefix="/api/v1/users")
 
@@ -24,7 +23,7 @@ def create_user(
     try:
         assert (
             db.exec(select(UserDB).where(UserDB.name == user.name)).one_or_none()
-            == None
+            is None
         )
     except AssertionError:
         raise HTTPException(status.HTTP_409_CONFLICT, detail="Name already used!")