fixing DQ issues

utils/database.py

@@ -1,4 +1,12 @@
 # utils/database.py
+"""Database utilities ....
+
+This module provides classes and functions for:
+- ....
+- ....
+- ....
+"""
+
 import logging
 
 from sqlalchemy import create_engine
@@ -9,7 +17,7 @@ logger = logging.getLogger(__name__)
 
 
 def get_db_engine(database_url: str):
-    """Create database engine with connection pooling"""
+    """Create database engine with connection pooling."""
     if database_url.startswith("sqlite"):
         # SQLite configuration
         engine = create_engine(
@@ -26,10 +34,10 @@ def get_db_engine(database_url: str):
             echo=False,
         )
 
-    logger.info(f"Database engine created for: {database_url.split('@')[0]}@...")
+    logger.info(f"Database engine created for: " f"{database_url.split('@')[0]}@...")
     return engine
 
 
 def get_session_local(engine):
-    """Create session factory"""
+    """Create session factory."""
     return sessionmaker(autocommit=False, autoflush=False, bind=engine)