from sqlalchemy import create_engine from sqlalchemy.orm import sessionmaker from sqlalchemy.orm import declarative_base DATABASE_URL = "mysql+pymysql://root:C3nvsoWP5Nhe@wncloud-mysql:3306/wncloud?charset=utf8mb4" engine = create_engine(DATABASE_URL) SessionLocal = sessionmaker(autoflush=False, bind=engine) Base = declarative_base()