PEP20是一条很有意思的命令：
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import this |
执行之后，你将会看到一首名为「Python之禅」的诗，原文及翻译如下：
The Zen of Python,by Tim Peters
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren’t special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one– and preferably only one –obvious way to do it.
Although that way may not be obvious at first unless you’re Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it’s a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea — let’s do more of those!
Python之禅，作者Tim Peters
优美胜于丑陋
明了胜于晦涩
简单胜于复杂
复杂胜于杂乱
扁平胜于嵌套
间隔胜于紧凑
可读性很重要
特例不足以特殊到违背这些原则
不要忽视错误，除非程序需要这样做
面对模棱两可，拒绝猜测
解决问题最直接的方法应该有一种，最好只有一种
可能这种方法一开始不够直接，因为你不是范罗苏姆
做也许好过不做，但不想就做还不如不做
如果方案难以描述明白，那么一定是个糟糕的方案
如果容易描述，那么可能是个好方案
命名空间是一种绝妙的理念，多加利用
