Programming for ML with no experience — if you can type, you can begin
A file of real data almost never hands you a tidy list ready to use. It hands you one long line of text, and inside that line the values are usually squashed together with commas: something like "ana,7,london", sitting in a file with a thousand more lines just like it. Until you know what to do with a line like that, it is just one long string, useless for anything except printing back out exactly as it arrived.
🔒 This is a Pro lesson — the interactive figure, worked examples, quiz and practice open with Pro access.
▶ Strings & Lists Together