blocks|key|3987201|text|从2.x开始。大多数现有的库将在2.x上运行很长一段时间。去年，Guido+himself+said+that+it+would+be+"two+years"，直到你需要学习3.0；还有一年的时间。就我个人而言，我认为这会更长。在2.x上编写代码的人可以学习如何使用2to3工具，并拥有在两个版本上都能工作的代码。没有3to2，所以为python3编写的代码就不那么有价值了。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3987202|更不用说当你的学生得知他们的Linux计算机上没有安装python3+("/usr/bin/python“至少在未来5年内会是python2.x)，得知python3没有django，python3没有wxwindows，python3没有GTK，python3没有Twisted，python3没有pil...Python的真正优势一直在于其广泛的库集合，而目前用于Python3的库很少。|3987203|如果你的教程写得很好，你应该可以很容易地把它更新到python2.6，2.7，并最终升级到python3。|3987204|entityMap|0|LINK|mutability|MUTABLE|url|http://www.artima.com/weblogs/viewpost.jsp?thread=211200^0|3P|4|W|1B|0|0|11|F|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@$9|U|A|V|1|W]]|E|$]]|$1|F|3|G|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|10|8|@]|D|@]|E|$]]|$1|J|3|-4|5|6|7|11|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

Start with 2.x. Most existing libraries will be on 2.x for a long time. Last year, <a href="http://www.artima.com/weblogs/viewpost.jsp?thread=211200" rel="nofollow noreferrer">Guido himself said that it would be "two years"</a> until you needed to learn 3.0; there's still another year left. Personally, I think it will be longer. People writing code on 2.x can learn how to use the <code>2to3</code> tool and have code that works on both versions. There is no 3to2, so code written for python 3 is significantly less valuable.

Thats not to mention how disappointing it will be for your students to learn that python 3 is not installed on their Linux computer ("<code>/usr/bin/python</code>" will be python 2.x for the next 5 years, at least), that there is no django for python 3, no wxwindows for python 3, no GTK for python 3, no Twisted for python 3, no PIL for python 3... the real strength of Python has always been in its extensive collection of libraries, and there are very few libraries for python 3 right now.

If your tutorial is well written, you should easily be able to update it to python 2.6, 2.7, and eventually python 3.

blocks|key|3986946|text|Van+Rossum+(python的创建者)解释说：“如果你要开始一个全新的东西，你应该使用3.0。”因此，大多数想要开始的人甚至应该从3.0开始。这将是有用的，特别是因为现在可能很少。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3986947|the+article|offset|length|3986948|entityMap|0|LINK|mutability|MUTABLE|url|http://www.linux.com/feature/150399^0|0|4|7|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Van Rossum (creator of python) explains that "if you're starting a brand new thing, you should use 3.0." So most people looking to get started should even START with 3.0. It will be useful especially since there are probably very few out there now.

the <a href="http://www.linux.com/feature/150399" rel="nofollow noreferrer">article</a>

blocks|key|827936|text|Python2.x已经发布了足够长的时间来构建相当多的教程，但是3k可用的资源要少得多。一些入门级别的3k内容可能会看到更通用的用途。因此，除非您针对缺少任何python资源的特定子域进行裁剪，否则3k会更有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|827937|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Python 2.x has been out long enough to build up quite a few tutorials already, but 3k has much less resources available. Some intro level 3k stuff would probably see more general purpose use. So unless you're tailoring this to a specific sub domain that lacks any python resources, 3k would be of greater use.

blocks|key|3987103|text|学习Python3.0，就像传染性建议的那样。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3987104|Python2.x并没有太大的不同，它们之间的细微差别似乎有很大的不同。当然，差异很大，大多数程序都需要修改，但几乎所有的修改都很简单(比如将print语句更改为print函数)。|offset|length|style|CODE|3987105|事实上，Python2.6可以选择性地启用Python3.0的所有新语法特性。这是一个经过深思熟虑的过渡过程。|3987106|entityMap^0|0|1Z|5|29|5|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|M|8|@$D|N|E|O|F|G]|$D|P|E|Q|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|R|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|K|$]]

Learn Python 3.0, as contagious suggests.

Python 2.x is not very different, there seems to be a great deal of FUD about the rather minor differences between them. Sure, the differences are great enough that most programs will need to be modified, but almost all of the modifications are straightforward (like changing <code>print</code> statement to <code>print</code> function).

In fact, Python 2.6 can optionally enable all the new syntactic features of Python 3.0. It's a very well-thought-out transition process.

blocks|key|3986867|text|这取决于你的受众。如果它是一个普通的读者，并且你打算把它张贴很长一段时间，我建议向前看，并使用3.0。另一方面，如果它是为一个在不久的将来要做工作的项目或小组准备的，那么Python+2可能更有意义。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3986868|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

It depends on your audience. If it's a general audience, and you plan to leave it posted for a long time, I'd suggest looking forward and going with 3.0. On the other hand if it's for a project or group that's going to be doing work in the near future, Python 2 probably make more sense.

blocks|key|827963|text|差异是足够小的，这真的不会有太大影响。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|827964|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

The differences are small enough that it's really not going to matter much.

Python 3.0 is in beta with a final release coming shortly. Obviously it will take some significant time for general adoption and for it to eventually replace 2.x.

I am writing a tutorial about certain aspects of programming Python. I'm wondering if I should do it in Python 2.x or 3.0? (not that the difference is huge)

a 2.x tutorial is probably more useful now, but it would be nice to start producing 3.0 tutorials.

anyone have thoughts?

(of course I could do both, but I would prefer to do one or the other)

Tutorial for Python - Should I use 2.x or 3.0?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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Python3.0正在进行测试版测试，最终版本即将发布。显然，它需要一段相当长的时间才能得到普遍采用，并最终取代2.x。我正在写一篇关于Python编程的某些方面的教程。我想知道我应该用Python 2.x还是3.0来做这件事？(并不是说差别很大)2.x版的教程现在可能更有用，但如果开始制作3.0版的教程就更好了。有人有什么想法吗？(当然我可以两个都做，但我更喜欢做其中的一个)

问Python教程-我应该使用2.x还是3.0？
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