Python Essential Reference, 4/e (Paperback)

Python Essential Reference is the definitive reference guide to the Python programming language — the one authoritative handbook that reliably untangles and explains both the core Python language and the most essential parts of the Python library.

Designed for the professional programmer, the book is concise, to the point, and highly accessible. It also includes detailed information on the Python library and many advanced subjects that is not available in either the official Python documentation or any other single reference source.

Thoroughly updated to reflect the significant new programming language features and library modules that have been introduced in Python 2.6 and Python 3, the fourth edition of Python Essential Reference is the definitive guide for programmers who need to modernize existing Python code or who are planning an eventual migration to Python 3. Programmers starting a new Python project will find detailed coverage of contemporary Python programming idioms.

This fourth edition of Python Essential Reference features numerous improvements, additions, and updates:

• Coverage of new language features, libraries, and modules
• Practical coverage of Python's more advanced features including generators, coroutines, closures, metaclasses, and decorators
• Expanded coverage of library modules related to concurrent programming including threads, subprocesses, and the new multiprocessing module
• Up-to-the-minute coverage of how to use Python 2.6’s forward compatibility mode to evaluate code for Python 3 compatibility
• Improved organization for even faster answers and better usability
• Updates to reflect modern Python programming style and idioms
• Updated and improved example code
• Deep coverage of low-level system and networking library modules — including options not covered in the standard documentation

《Python Essential Reference》是Python程式語言的權威參考指南，是一本可靠地解釋和說明Python核心語言和Python庫中最重要部分的手冊。

這本書專為專業程式設計師設計，內容簡潔、直接，非常易於理解。它還包含了關於Python庫和許多高級主題的詳細信息，這些信息在官方Python文檔或其他單一參考資料中都無法找到。

第四版的《Python Essential Reference》已經全面更新，以反映在Python 2.6和Python 3中引入的重要新程式語言功能和庫模組。這本書是需要現代化現有Python程式碼或計劃最終遷移到Python 3的程式設計師的指南。開始一個新的Python項目的程式設計師將找到對當代Python程式設計慣用語法的詳細介紹。

這本第四版的《Python Essential Reference》具有許多改進、增加和更新的內容，包括：

- 新語言功能、庫和模組的涵蓋範圍
- 對Python更高級功能的實用介紹，包括生成器、協程、閉包、元類和裝飾器
- 涵蓋與並發程式設計相關的庫模組，包括線程、子進程和新的多進程模組
- 最新的使用Python 2.6的向前兼容模式來評估代碼是否與Python 3兼容的方法
- 更好的組織結構，以提供更快的答案和更好的可用性
- 更新以反映現代Python程式設計風格和慣用語法
- 更新和改進的示例程式碼
- 深入涵蓋低級系統和網絡庫模組，包括標準文檔中未涵蓋的選項

以上是《Python Essential Reference》第四版的內容概述。