Ah, that stubborn error! It's usually because your `if`, `elif`, and `else` blocks aren't lined up perfectly under each other—Python is very strict about spaces. Check if you mixed tabs and spaces; my old text editor does that all the time.
I learned this the hard way last monsoon, debugging code between power cuts while a bucket caught drips from our ceiling. Every indent felt as crucial as placing a tile to stop a new leak.
#exams#study
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