在Python中打印带分隔符的表的最好方法是什么 [英] What is the best way to print a table with delimiters in Python

问题描述

我想打印一个混合有字符串和浮点值的表，作为制表符分隔的输出打印输出。确定我可以完成这项工作：

I want to print a table mixed with string and float values, as tab delimited output printout. Sure I can get the job done:

>>> tab = [['a', 1], ['b', 2]]
>>> for row in tab:
...     out = ""
...     for col in row:
...             out = out + str(col) + "\t"
...     print out.rstrip()
... 
a   1
b   2

但我有一种感觉，有一个更好的方法来做它在Python，至少打印每个行与指定的分隔符，如果不是整个表。小搜索（来自此处），且已缩短：

But I have a feeling there is a better way to do it in Python, at least to print each row with specified delimiter, if not the whole table. Little googling (from here) and it is already shorter:

>>> for row in tab:
...     print "\t".join([str(col) for col in row])
... 
a   1
b   2

$ b b $ b

Is there still a better, or more Python-ish, way to do it?

推荐答案

你的较短的解决方案会很快的和脏的工作。但是如果你需要处理大量的数据，最好使用 csv 模块：

Your shorter solution would work well as something quick and dirty. But if you need to handle large amounts of data, it'd be better to use csv module:

import sys, csv
writer = csv.writer(sys.stdout, delimiter="\t")
writer.writerows(data)

此解决方案的优点是您可以轻松地定制输出格式的所有方面：定界符，引号，列标题，转义序列。 ..

The benefit of this solution is that you may easily customize all aspects of output format: delimiter, quotation, column headers, escape sequences...

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