from sqlalchemy import create_engine from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import sessionmaker from dotenv import load_dotenv load_dotenv() import os DB_URL = DB_URL = os.getenv("DB_URL") engine = create_engine(DB_URL,echo=True) SessionLocal = sessionmaker(autocommit=False,autoflush=False, bind=engine) Base = declarative_base()