在python中创建漂亮的列输出 [英] Create nice column output in python

问题描述

我正在尝试在python中创建一个不错的列列表，以与我创建的命令行管理工具一起使用.

I am trying to create a nice column list in python for use with commandline admin tools which I create.

基本上，我想要一个像这样的列表:

Basicly, I want a list like:

[['a', 'b', 'c'], ['aaaaaaaaaa', 'b', 'c'], ['a', 'bbbbbbbbbb', 'c']]

要变成:

a            b            c
aaaaaaaaaa   b            c
a            bbbbbbbbbb   c

在这里使用普通制表符是行不通的，因为我不知道每一行中最长的数据.

Using plain tabs wont do the trick here because I don't know the longest data in each row.

这与Linux中的'column -t'相同..

This is the same behavior as 'column -t' in Linux..

$ echo -e "a b c\naaaaaaaaaa b c\na bbbbbbbbbb c"
a b c
aaaaaaaaaa b c
a bbbbbbbbbb c

$ echo -e "a b c\naaaaaaaaaa b c\na bbbbbbbbbb c" | column -t
a           b           c
aaaaaaaaaa  b           c
a           bbbbbbbbbb  c

我到处寻找各种python库来执行此操作，但是找不到任何有用的东西.

I have looked around for various python libraries to do this but can't find anything useful.

推荐答案

data = [['a', 'b', 'c'], ['aaaaaaaaaa', 'b', 'c'], ['a', 'bbbbbbbbbb', 'c']]

col_width = max(len(word) for row in data for word in row) + 2  # padding
for row in data:
    print "".join(word.ljust(col_width) for word in row)

a            b            c            
aaaaaaaaaa   b            c            
a            bbbbbbbbbb   c   

这是计算最长的数据条目以确定列宽，然后在打印每列时使用.ljust()添加必要的填充.

What this does is calculate the longest data entry to determine the column width, then use .ljust() to add the necessary padding when printing out each column.

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