Lesson 15 · Data Iteration · Part 3 — Level I · Guide

September 3, 2026 · Bridge Academy Python Program

Learning goals

- Iterate keys by default with for key in d:. - Use .keys(), .values(), and .items() for explicit iteration. - Sum, filter, and transform dictionary data with a loop. - Build a new dict (e.g. doubled values, reversed mapping) with an explicit loop. - Find the key with the max value and count entries above a threshold.

This lesson covers PCEP-30-02 objective 2.2.