这是因为 k in d 这个操作会调用 它,但是我们从 dict 继承到的__contains__方法不会在找不到键的时候调用__missing__方法。__contains__里还有个细节,就是我们这里没有用更具 Python 风格的方式——k in my_dict——来检查键是否存在,因为那也会导致__contains__被递归调用。为了避免这 一情况,
Fluent Python是由Luciano Ramalho撰写的一本Python编程指南。它以深入浅出的方式介绍了Python的一些高级特性和技巧,帮助读者更好地理解和运用Python语言。 Fluent Python第二版的PDF版本是一本很有价值的资料,因为它提供了全面而深入的内容,包括Python的核心概念、面向对象编程、函数式编程、元编程等等。这些内容对于想要...
Featuring major updates throughout the book, Fluent Python, second edition, covers: Special methods: The key to the consistent behavior of Python objects Data structures: Sequences, dicts, sets, Unicode, and data classes Functions as objects: First-class functions, related design patterns, and typ...
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Fluent Python, 2nd Edition豆瓣评分:9.5 简介:Python’s simplicity lets you become productive quickly, but often this means you aren’t using everything it has to offer. With the updated edition of this hands-on guide, you’ll learn how to write
For the second edition, I expanded the section about the struct module and published it online at “Parsing binary records with struct”, in the fluentpython.com companion website. There you will also find “Building Multi-character Emojis”, describing how to make country flags, rainbow flags...
2 | Chapter 1: The Python Data Model Also, here and throughout this second edition I adopted the f-string syntax intro‐ duced in Python 3.6, which is more readable and often more convenient than the older string formatting notations: the str.format() method and the % operator. One ...
Fluent Python, Second EditionCompanion website for the lizard book including:Extra content: new or updated sections that did not fit in the Second Edition. Python lingo: technical terms and slang used by Pythonistas.dark theme: Made with Hugo. Themed by Cupper. ...
Don't waste time bending Python to fit patterns you've learned in other languages. Python's simplicity lets you become productive quickly, but often this means you aren't using everything the language … - Selection from Fluent Python, 2nd Edition [Book