Python之禪

一、什麼是禪

人生中的煩惱都是自己找的,當心靈變得博大,空靈無物,猶如倒空了煩惱的杯子,便能恬淡安靜。人的心靈,若能如蓮花與日月,超然平淡,無分別心、取捨心、愛憎心、得失心,便能獲得快樂與祥和。水往低處流,雲在天上飄,一切都自然和諧地發生,這就是平常心。擁有一顆平常心,人生如行雲流水,迴歸本真,這便是參透人生,便是禪!

 

二、Python之禪

在Windows平臺的cmd命令中打開python,輸入 import this,你會看到如下內容:

 

這就是Python之禪

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!

 

中英文對照:

Beautiful is better than ugly.
# 優美勝於醜陋(Python以編寫優美的代碼爲目標)
 
Explicit is better than implicit.
# 明瞭勝於晦澀(優美的代碼應當是明瞭的,命名規範,風格相似)
 
Simple is better than complex.
# 簡潔勝於複雜(優美的代碼應當是簡潔的,不要有複雜的內部實現)
 
Complex is better than complicated.
# 複雜勝於凌亂(如果複雜不可避免,那代碼間也不能有難懂的關係,要保持接口簡潔)
 
Flat is better than nested.
# 扁平勝於嵌套(優美的代碼應當是扁平的,不能有太多的嵌套)
 
Sparse is better than dense.
# 間隔勝於緊湊(優美的代碼有適當的間隔,不要奢望一行代碼解決問題)
 
Readability counts.
# 可讀性很重要(優美的代碼是可讀的)
 
Special cases aren't special enough to break the rules.
Although practicality beats purity.
# 即便假借特例的實用性之名,也不可違背這些規則(這些規則至高無上)
 
Errors should never pass silently.
Unless explicitly silenced.
# 不要包容所有錯誤,除非你確定需要這樣做(精準地捕獲異常,不寫except:pass風格的代碼)
 
In the face of ambiguity, refuse the temptation to guess.
# 當存在多種可能,不要嘗試去猜測
 
There should be one-- and preferably only one --obvious way to do it.
# 而是儘量找一種,最好是唯一一種明顯的解決方案(如果不確定,就用窮舉法)
 
Although that way may not be obvious at first unless you're Dutch.
# 雖然這並不容易,因爲你不是 Python 之父(這裏的Dutch是指Guido)
 
Now is better than never.
Although never is often better than *right* now.
# 做也許好過不做,但不假思索就動手還不如不做(動手之前要細思量)
 
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.
# 如果你無法向人描述你的方案,那肯定不是一個好方案;反之亦然(方案測評標準)
 
Namespaces are one honking great idea -- let's do more of those!
# 命名空間是一種絕妙的理念,我們應當多加利用(倡導與號召)

 

只有在平常的使用中多加揣摩,細細研究,慢慢體會,你才能更好地去理解Python之禪的深刻思想,從而更從容的寫出簡潔、優美、通俗易懂的Python程序!

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