That Python course I bought taught me bad habits I'm still unlearning

I used to copy-paste code from tutorials without really understanding it, thinking that's how you learn. Then I spent 6 hours debugging a simple loop in my first real project last week. A senior dev at a meetup in Chicago pointed out I was using global variables everywhere from those beginner lessons. Now I write everything in small functions with clear inputs and outputs. Has anyone else found that popular beginner courses teach shortcuts that backfire later?

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cole_hall5h ago

Oh man, same here. Had to relearn everything from scratch after my first tutorial cram session.