Python Essential Reference pdf epub mobi txt 电子书 下载 2024


Python Essential Reference

简体网页||繁体网页
David M. Beazley
Addison-Wesley Professional
2009-07-19
648
USD 49.99
Paperback
9780672329784

图书标签: Python  programming  编程  计算机  编程语言  python  开发技术  程序开发   


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发表于2024-12-23

Python Essential Reference epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Python Essential Reference epub 下载 mobi 下载 pdf 下载 txt 电子书 下载 2024

Python Essential Reference pdf epub mobi txt 电子书 下载 2024



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Amazon.com Review

Every so often a book comes along that makes you ask yourself, "Gee, when was the last time I had my eyes checked?" David M. Beazley's Python: Essential Reference is just such a book. Condensing thousands of pages of Python online documentation into a compact 319-page softcover, Beazley and his editors used the old-college trick (often performed in reverse) of dickering with the font size to meet a putative page-limit requirement. The result is a truly condensed product fit for the occularly well-adjusted (nota bene).

Beazley's subject is Python, a full-featured, freely-redistributable, POSIX-compliant (platforms include Linux, Unix, Macintosh, and Windows) scripting language that is based on object-oriented design principles. As advertised, Beazley's source release (1.5.2) is available from an unfortunately slow server at www.python.org. The installation under Linux (Redhat 5.2) proceeded without incident.

Beazley holds true to his catalogic purpose: fully 230 pages are formatted as technical appendices and indices covering the standard litany: built-in function syntax, database features, OS-level interfaces, Internet interfaces, and compiling/profiling/debugging. All references are fully annotated and illustrated with example source code that runs from a couple of lines to a couple of pages. In lock step with competing scripting languages, Python is extensible and embeddable in C and C++, and with blitzkrieg efficiency, Beazley summarizes these crucial practical issues in the final 30 pages. Python users who are tired of chasing questions through hyperlinked online documents will benefit from the expansive random-access index.

Python the book captures the orderliness of Python the language. Beazley begins with an 86-page précis of Python in the fashion of Kernighan and Ritchie: too brief for a newbie tutorial but enough to propel old hands into a scripting language that aspires to the elegance of a compiled language.

Indeed, it is a byte-compiling language. The line bytecode=compile("some_python_script",'','exec')) creates 'bytecode' as a token executed by exec bytecode. But a five-minute investigation through Beazley's book does not describe how 'bytecode' can be written into a separate executable file. If writing the byte-compiled code to a file is not possible, Python suffers from the limitations of other scripting languages: the executable is the source and cannot be hidden from the user, at least not without some difficulty. Despite its extensibility, embeddability, and pleasing architecture, Python is like other scripting languages: appropriate for solving small nonproprietary problems.

Those familiar with more established scriptors like Perl may ask, "Why Python?" Unlike Perl, Python is a product of the fully object-oriented (OO) era, and its constructs reflect design principles that aspire beyond keystroke shortcuts of the succinct-but-often-arcane Perl. Python creator Guido van Rossum cleansed Perl's idiosyncracies and objectified basic data structure, data manipulations, and I/O. With Python, OO is so intrinsic that learning Python is equivalent to learning OO. The same cannot be said of Perl.

Unfortunately, comparisons with other languages are missing from Beazley's book. Van Rossum, in an embarrassingly self-serving foreword, preemptively asserts that we readers need "neither evangelizing nor proselytizing"--after all, we already own the book--but we do need galvanizing and we don't find it. Specifically, we need a response to the oft-repeated wisdom that new computer languages are only worth learning if they teach us to organize our thinking along new lines.

Scripting languages, however, are for quick and dirty projects: quick to write, easy to hack, and ultimately disposable. The essential tension created by van Rossum and friends is between the elegance of object-oriented principles and the utility of a quick-hacked script. Sadly, the tension remains unresolved in Beazley's reference. There is little to convince us that Python has earned its place in the firmament by changing our thinking. But Beazley has given us much to get us going if we have already taken the leap of faith. --Peter Leopold --This text refers to an out of print or unavailable edition of this title.

From Library Journal

Though Python is a relatively new programming language, it has quite a significant audience owing to its sensible syntax. An active user of Python since 1996, Beazley provides ample information on the fundamentals of versions 2.0 and 2.1, including syntax, functions, operators, classes, and libraries. This is first and foremost a reference, so he avoids lengthy discussions of Python's superiority. Peppered with good code samples and featuring a companion web site with more extensive pieces, this title should be on hand in larger libraries.

Copyright 2001 Reed Business Information, Inc.

Python Essential Reference 下载 mobi epub pdf txt 电子书

著者简介

David M. Beazley 早在1996年就开始使用Python编程。在洛斯阿莫斯国家实验室工作期间,他教会很多志愿者用Python编写科学计算软件。他创办的Dabeaz 公司提供软件开发、培训和咨询服务,专长于Python、Ruby、Perl等动态编程语言的实际应用。他是Python软件基金会的会员。


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Python Essential Reference pdf epub mobi txt 电子书 下载
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用户评价

评分

包含语法、系统库、嵌入与扩展的全面内容,与官方文档范围和叙事结构挺像,不错的线下手册。基于Python2.6和3.0,内容准确而丰富,提及了MRO的C3算法、各类Encoding的详细区别等等。

评分

想深入学习下python,虽然用起来很顺手,但是有时候会有种使不上劲的感觉,要深入学习会儿 ---- 库大概过了一遍,前面的仔细看了,感觉合pro python似乎都不错~

评分

工具书,随手翻。

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被拯救了

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Very clear

读后感

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评分

在正则表达式那一章,‘?’明明就是匹配0个或一个任意字符,而且我也查看了原版:“matches zero or one repetition of the preceding expression”,怎么就给翻译成了0个或多个?可能是作者翻译得眼花了,看到下一句了,可校验干啥去了? 不过还是挺有借鉴价...  

评分

如果已经掌握了几种编程语言了,学Python就用这本书,其它Python的书都可以烧掉了。 这本书不仅将语法和API组织的井然有序,更可贵的,是他在整部书中穿插了很多best practices.

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页码32页,电子书45页,表3-2,lens(s)应为len(s) 页码33页,电子书46页,表3-4, 原文:s.pop([i]) 返回元素i并从列表中删除它,如果省略i,则返回列表中最后一个元素 表述有误。 应为:s.pop([i]) 返回下标为i的元素并从列表中删除它,如果省略i,则返回列表中最后一...  

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这本书买来之后翻看了几章,翻译的水平太差了,严重影响对书的内容的理解。以后坚决买英文原版的,即便是翻译的也要买那些口碑好的译者的书。像这种一本书由好几个人翻译的,而且在书中找不到任何译者介绍的,坚决不买!  

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