Lesson 10 · Dictionaries · Part 1 — Level I · Guide

July 23, 2026 · Bridge Academy Python Program

Learning goals

- Build dictionaries with curly braces: {"key": "value"}. - Create an empty dictionary with {}. - Look up a value by its key: d["key"]. - Add a new key or update an existing one: d["new"] = value. - Remove a key with del d["key"]. - Check whether a key is in a dictionary with in / not in. - Count keys with len(d).

This lesson covers PCEP-30-02 objective 3.3.