PRIMARY KEY 必须是唯一的

Question

I am trying to write some data to a table in a database which I am creating. However, I am facing with an integrity error like:

sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) PRIMARY KEY must be unique

My question is how to avoid these errors as I will run a couple of times the script

Answer 1

Basically you are creating an object with an already existing primary key, and it's not accepted by SQLite. Verify it by querying the db with something like

select * from airport where id = 6256

If the query returns a result, you need to change the id of the airport you are saving. Since you use the autoincrement, you don't need to specify an id and the DBMS will assign the next free id in that table.