附录 —— 有选择性的让人印象深刻的 python 简短回顾
APPENDIX -- A Selective and Impressionistic Short Review of Python
- A reader who is coming to Python for the first time would be well served reading Guido van Rossum's _Python Tutorial_, which can be
downloaded from <http://python.org/>, or picking up one of the several excellent books devoted to teaching Python to novices. As indicated in the Preface, the audience of this book is a bit different.
第一次接触 python 的读者适合去读 GUIdo van Rossum 的 Python Tutorial, 可以从 http://python.org/ 下载, 或者选一本针对 python 初学者的好书。 就像序言中说过的那样，本书针对的读者会超微不太一样。
- The above said, some readers of this book might use Python only infrequently, or not have used Python for a while, or may be sufficiently versed in numerous other programming languages, that a quick review on Python constructs suffices for understanding. This appendix will briefly mention each major element of the Python language itself, but will not address any libraries (even standard and ubiquitous ones that may be discussed in the main chapters). Not all fine points of syntax and semantics will be covered here, either. This review, however, should suffice for a reader to understand all the examples in this book.
上面说了，本书的读者也许只是不常使用 python，或是有一段时间没有过 python ， 或是精通许多其它语言，对他们来说只要对 python 来一点简短的回顾他们就能懂了。 本附录将会简要地谈谈到 python 语言本身的每一个重要组成，但不会涉及任何库
- (甚至是标准库和会在本书主要章节中讨论的常用库)。也不会涉及到所有语法和语义的细节。
不过，这篇回顾应该足以让读者理解本书中所有例子了。
- Even readers who are familiar with Python might enjoy skimming this review. The focus and spin of this summary are a bit different from most introductions. I believe that the way I categorize and explain a number of language features can provide a moderately novel--but equally accurate--perspective on the Python language. Ideally, a Python programmer will come away from this review with a few new insights on the familiar constructs she uses every day. This appendix does not shy away from using some abstract terms from computer science--if a particular term is not familiar to you, you will not lose much by skipping over the sentence it occurs in; some of these terms are explained briefly in the Glossary.
甚至对 python 很熟悉的读者都可能会喜欢这篇回顾。 这篇摘要的目标和 spin 和大部分介绍都不一样。 我相信我这种对语言特色分类和解释的方式能为你提供一种新鲜的——同时也是准确的——角度来看待 python 语言。 理想的情况下，python 程序员看完这篇回顾后，应该会让他对自己经常使用的熟知的东西(constructs)有一些新的看法。 这篇附录不会特意回避一些计算机科学里面抽象术语——如果你对某一个术语不熟悉，你大可直接跳过那一段，不会有什么损失的； 某些术语在术语表中有简短的解释。