python之禅

起源

2001年秋召开第十届International Python Conference(IPC 10，Pycon的前身)，打算征集一条印在会议T恤衫上的标语，最终他们从Python社区收到了500多条投稿。并最中筛选确认为import this ，他们选择之后觉得需要实现它，经过讨论最中定义为了由Tim Peter 写的《The zen of Python》

触发

在交互命令中输入import this 就会触发。

>>> import this
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!

译文

# 译文 转载
Beautiful is better than ugly.
# 优美胜于丑陋（Python以编写优美的代码为目标）

Explicit is better than implicit.
# 明了胜于晦涩（优美的代码应当是明了的，命名规范，风格相似）

Simple is better than complex.
# 简洁胜于复杂（优美的代码应当是简洁的，不要有复杂的内部实现） 

Complex is better than complicated.
# 复杂胜于凌乱（如果复杂不可避免，那代码间也不能有难懂的关系，要保持接口简洁）

Flat is better than nested.
# 扁平胜于嵌套（优美的代码应当是扁平的，不能有太多的嵌套） 

Sparse is better than dense.
# 间隔胜于紧凑（优美的代码有适当的间隔，不要奢望一行代码解决问题） 

Readability counts.
# 可读性很重要（优美的代码是可读的） 

Special cases aren't special enough to break the rules.
Although practicality beats purity.
# 即便假借特例的实用性之名，也不可违背这些规则（这些规则至高无上） 

Errors should never pass silently.
Unless explicitly silenced.
# 所有错误都不应该被直接忽略，除非能够被精确的捕获之后。（其中一个典型的例子就是，不建议用Exception:pass来直接忽略所有异常。）

In the face of ambiguity, refuse the temptation to guess.
# 当面对不明确的情况时，不要尝试去猜测 

There should be one-- and preferably only one --obvious way to do it.
# 而是尽量找一种，最好是唯一一种明显的解决方案（如果不确定，就用穷举法） 

Although that way may not be obvious at first unless you're Dutch. 
# 虽然起初这并不那么显而易见，因为你不是 Python 之父（这里的Dutch是指Python之父Guido Van Rossum，他是荷兰人。）

Now is better than never.
Although never is often better than *right* now.
# 现在行动胜过永不开始，但是不假思索就动手还不如不做（动手之前要细思量）

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.
# 如果你的实现很难向别人解释，这往往不是一个好的方案；如果你的实现很容易向别人解释，这可能是个好的方案。（方案测评标准） 

Namespaces are one honking great idea -- let's do more of those! 
# 命名空间是一种绝妙的理念，我们应当多加利用（倡导与号召）