Python 和 SQLAlchemy 使用 For 循环打印数据库内容

Question

I'm trying to run the program below

import os

from sqlalchemy import create_engine
from sqlalchemy.orm import scoped_session, sessionmaker

engine = create_engine(os.getenv("DATABASE_URL"))
db = scoped_session(sessionmaker(bind=engine))

def main():
    flights = db.execute("SELECT origin, destination, duration FROM flights").fetchall()
    for flight in flights:
        print(f"{flight.origin} to {flight.destination}, {flight.duration} minutes.")

if __name__ == "__main__":
    main()

but it seems to have this syntax error.

I already tried installing sqlalchemy again and i dont know if I'm missing something or what i've done wrong since I'm new to python and sql. I've also made sure that the table already exists as seen below.

Thanks in advance!

Answer 1

fixed the problem by running python3 list.py instead of python list.py