Python Dictionaries, Sets, Hash Tables, and Object Serialization
Understand Python dictionaries as key-to-value mappings backed by hash-table concepts. The lesson demonstrates creating entries, reading and updating values, testing membership, iterating through keys and items, and comparing dictionaries with sets and their unique-value operations.
It then introduces serialization and object persistence, showing how pickle writes collections and user-defined objects to a binary file and restores them later—the same fundamental behavior used by saved games and persistent applications.