Скачать или смотреть The Golden Rule Unique Keys, Flexible Values

In this Python dictionary tutorial, you'll discover how to create dictionaries using curly braces and dict() constructor, access and modify values, use dictionary methods like get(), keys(), values(), items(), update(), pop(), and clear(). Learn the difference between dictionaries and lists, understand hash tables and how Python implements them internally, work with nested dictionaries for complex data, iterate through dictionaries with for loops, use dictionary comprehensions for elegant code, handle missing keys safely, merge dictionaries, and convert between dictionaries and other data structures. Includes practical examples like storing user information, creating contact lists, managing inventory systems, parsing JSON APIs, caching data, and implementing configuration settings. We also cover Python 3.9+ features like merge operators (|) and best practices for choosing between dictionaries, lists, and tuples based on your use case.