Make ColumnNotFoundError in with_columns as nice as it is in columns from read_csv

[MarcoGorelli]

Description

Check this out:

pl.read_csv('fr.csv', columns=['long'])

polars.exceptions.ColumnNotFoundError: unable to find column "long"; valid colum
ns: ["city", "lat", "lng", "country", "iso2", "admin_name", "capital", "populati
on", "population_proper"]

Absolutely beautiful, top-grade error message, love it 😍

Now check this out:

    pl.read_csv('fr.csv')
    .with_columns(
        pastry = name_pastry('lat', 'long')
    )

polars.exceptions.ColumnNotFoundError: long

Much, much less helpful.

Any objections to making this error message as beautiful as the first one?

[ritchie46]

Certainly not. That goal I can only wholeheartidly encourage (everywhere).