我不明白python中pprint中的宽度字段 [英] I don't understand the width field in pprint in python

问题描述

我不是很清楚这个概念.有人能给我一些例子来演示python中pprint中宽度的概念吗?

I don't understand this concept clearly. Could somebody give me some examples to demonstrate the concept for width in pprint in python?

推荐答案

基本上它会尝试将您的输出限制为特定的宽度.

Basically it tries to limit your output to a specific width.

这是一个例子:

import pprint
stuff = ['spam', 'eggs', 'lumberjack', 'knights', 'ni']
pp = pprint.PrettyPrinter(width=80)
pp.pprint(stuff)

结果是:

['spam', 'eggs', 'lumberjack', 'knights', 'ni']

但是如果你做同样的事情但是改变宽度(比如 10):

but if you do the same thing but change the width(say to 10):

import pprint
stuff = ['spam', 'eggs', 'lumberjack', 'knights', 'ni']
pp = pprint.PrettyPrinter(width=10)
pp.pprint(stuff)

你得到:

['spam',
 'eggs',
 'lumberjack',
 'knights',
 'ni']

这是从 python 文档 ( http://docs.python.org/图书馆/pprint.html).对于这样的事情，我发现打开 python 中断器并播放并查看命令如何对您输入的内容做出反应更容易.

This is a modified example from the python docs ( http://docs.python.org/library/pprint.html ). For things like this, I find it easier to just open the python interrupter and play around and see how the commands react to what you enter.

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