Python for AI Engineering· day 5 of 30
DAY 05Python
Functions & Return Values
Day 5 of Python for AI Engineering. Learn to package code into reusable functions: def, parameters and arguments, return values (and how they differ from print), default and keyword arguments, and multiple return values. You'll refactor the contact book so every menu action becomes a clean function.
Jun 20, 2026 15 min read2.8k words
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