Big fan of the two you mentioned. A couple more to add would be: - Use black to format your code. No exceptions. - Very modular code. - Tests, although this

Big fan of the two you mentioned. A couple more to add would be: - Use black to format your code. No exceptions. - Very modular code. - Tests, although this costs time of course. Focus on meaningful rather than trivial ones if needed. - Write comments explaining reasoning for particularly dense pieces of logic. If you practice most of the above, hard to see where you can go wrong.