Data Iteration · Part 3
Dict aggregation for data: population totals, top tickers, molecular masses, weighted averages.
Lesson 15 · Data Iteration · Part 3 — Level II · Guide
September 3, 2026 · Bridge Academy Python Program
Learning goals
- Iterate a dictionary four ways: default,
.keys(),.values(),.items(). - Aggregate values (total rainfall, revenue, elements).
- Find key with max/min value (top performer, hottest city).
- Filter and transform dictionaries by value (build new mappings explicitly).
This lesson covers PCEP-30-02 objective 2.2.
Preview truncated — download the notebook to see the full lesson.