Python for AI Engineering· day 17 of 30
DAY 17Python
Type Hints & Static Checking
Day 17 of Python for AI Engineering, and the start of Module 6. Add type hints to document exactly what your functions expect and return, learn the syntax for collections, Optional and Union, and run mypy to catch a whole class of bugs before your code ever runs. You'll type-check a stats module and watch mypy flag a real bug.
Jun 23, 2026 12 min read2.2k words
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