Python/Sql - Creating a table and loading csv file

Question

I have managed to create a table called drivers however I am unable to load a csv file called drivers.csv into this table

Code

Error:

File "/workspaces/87976355/project/app.py", line 17, in <module>
    db.execute("INSERT INTO drivers (driverId, driverRef, number, code, forename, surname, dob, nationality, url) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)", row.split(","))

RuntimeError: more placeholders (?, ?, ?, ?, ?, ?, ?, ?, ?) than values ('driverId', 'driverRef', 'number', 'code', 'forename', 'surname', 'dob', 'nationality', 'url
')

I've also tried to do:

db.execute("INSERT INTO drivers (driverId, driverRef, number, code, forename, surname, dob, nationality, url) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)", driverId, driverRef, number, code, forename, surname, dob, nationality, url)

csv file format

But no luck which I believe python is reading driverid , driverref etc. as variables rather than name of the columns in table - drivers.

Would anyone know why I am encountering this?

Answer 1

I think you're looking for string formatting in Python, which uses a % and %s or %d . So something like this

with open('drivers.csv', 'r') as file:
  for row in file:
    db.execute("INSERT INTO drivers(driverId, driverRef, number, code, forename, surname, dob, nationality, url) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s')" % row.split(","))
    #instead of directly inserting into the database you should probably first test it, like so:
    #print("INSERT INTO drivers(driverId, driverRef, number, code, forename, surname, dob, nationality, url) values ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s')" % row.split(","))

However, that will probably still give errors for decimals values or empty NaN values. And also, it doesn't check if the csv contains too many or too few columns.