def makeConnection(db_url):
    engine = create_engine(db_url)
    engine.connect()
    Session = sessionmaker(bind=engine)
    thisSession = Session()
    metadata = MetaData()
    metadata.bind = engine
    Base = declarative_base()
    return (thisSession, metadata, Base)
def makeConnection(db_url):
    engine = create_engine(db_url)
    engine.connect()
    Session = sessionmaker(bind=engine)
    thisSession = Session()
    metadata = MetaData()
    metadata.bind = engine
    Base = declarative_base()
    return (thisSession, metadata, Base)