附录：版本历史

我为我编写的“Diamond”软件编写简化安装过程的安装程序时，我第一次开始使用Python。我不得不在Python还是Perl上绑定Qt库进行选择。我在网上做了一些研究，偶然发现了[Eric S. Raymond的一篇文章] (http://www.python.org/about/success/esr/), Raymond是一个著名的、值得尊敬的黑客。其中他谈道，Python是如何成为他最喜爱的编程语言的。我也发现PyQt的绑定比Perl-QT更加成熟。所以我决定选择Python。

然后，我开始搜索Python的优秀书籍。我没能找到一本！我确实找到了一些O'Reilly的书，但是它们要么太贵，要么更像是参考手册而不是教程。于是，我免强接受了Python的随机文档。但是它过于简单和小巧。它的确给出了关于Python的妙计，但是不完整。由于我有编程经验，因此我能够对付它，但它并不适合于初学者。

在我第一次使用Python六个月后，我安装了当时最新的Red Hat 9.0 Linux，开始使用KWord。我对它很兴奋，突然冒出一个想法，用它写一些关于Python的东西。我开始写了几页，但是很快就有30页之多。然后我认真地将其变成书的形式，使它更有用。经过几次重写，它已经达到了作为学习Python语言有用教程的水准。我将这本书作为我的贡献捐赠给开源社区。

本书开始于我在Python上的学习笔记，尽管为满足他人的口味，我做出了大量的努力，但直到现在我依然这么认为:

在开源的真正精神中，我收到了很多热心读者的建设性意见、批评和反馈，这些帮助我改进了本书。

本书的状态

本书需要像您这样的读者的帮助，指出任何不足、难以理解或者错误之处。请写信给主要作者 或者各个译者留下您的意见和建议。

Appendix: Revision History {#revision-history}

• 4.0

  • 19 Jan 2016
  • Switched back to Python 3
  • Switched back to Markdown, using GitBook and Spacemacs

• 3.0

  • 31 Mar 2014
  • Rewritten for Python 2 using AsciiDoc and adoc-mode.

• 2.1

  • 03 Aug 2013
  • Rewritten using Markdown and Jason Blevins' Markdown Mode

• 2.0

  • 20 Oct 2012
  • Rewritten in Pandoc format, thanks to my wife who did most of the conversion from the Mediawiki format
  • Simplifying text, removing non-essential sections such as nonlocal and metaclasses

• 1.90

  • 04 Sep 2008 and still in progress
  • Revival after a gap of 3.5 years!
  • Rewriting for Python 3.0
  • Rewrite using http://www.mediawiki.org[MediaWiki] (again)

• 1.20

  • 13 Jan 2005
  • Complete rewrite using Quanta+ on Fedora Core 3 with lot of corrections and updates. Many new examples. Rewrote my DocBook setup from scratch.

• 1.15

  • 28 Mar 2004
  • Minor revisions

• 1.12

  • 16 Mar 2004
  • Additions and corrections

• 1.10

  • 09 Mar 2004
  • More typo corrections, thanks to many enthusiastic and helpful readers.

• 1.00

  • 08 Mar 2004
  • After tremendous feedback and suggestions from readers, I have made significant revisions to the content along with typo corrections.

• 0.99

  • 22 Feb 2004
  • Added a new chapter on modules. Added details about variable number of arguments in functions.

• 0.98

  • 16 Feb 2004
  • Wrote a Python script and CSS stylesheet to improve XHTML output, including a crude-yet-functional lexical analyzer for automatic VIM-like syntax highlighting of the program listings.

• 0.97

  • 13 Feb 2004
  • Another completely rewritten draft, in DocBook XML (again). Book has improved a lot - it is more coherent and readable.

• 0.93

  • 25 Jan 2004
  • Added IDLE talk and more Windows-specific stuff

• 0.92

  • 05 Jan 2004
  • Changes to few examples.

• 0.91

  • 30 Dec 2003
  • Corrected typos. Improvised many topics.

• 0.90

  • 18 Dec 2003
  • Added 2 more chapters. OpenOffice format with revisions.

• 0.60

  • 21 Nov 2003
  • Fully rewritten and expanded.

• 0.20

  • 20 Nov 2003
  • Corrected some typos and errors.

• 0.15

  • 20 Nov 2003
  • Converted to DocBook XML with XEmacs.

• 0.10

  • 14 Nov 2003
  • Initial draft using KWord.

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