在Mac vs Windows上的python中处理\ r \ n vs \ n换行符 [英] Handling \r\n vs \n newlines in python on Mac vs Windows

问题描述

我有一个python脚本，当在Windows机器上运行和在Mac上运行时，它们给出不同的输出.在深入研究时，我发现这是因为当Python在Mac上从文件中读取换行符(从文件中)时，它在\r\n中读取，而在Windows中，\r则以某种方式消失了.

I have a python script that gave different output when run on a Windows machine and when run on a Mac. On digging deeper, I discovered that it was because when Python read in line breaks on the Mac (from a file), it read in \r\n, while somehow in Windows the \r disappears.

因此，如果我将脚本中的每个\n都更改为\r\n，则在Mac上可以正常使用.但是，如果这样做，它将在Windows PC上停止工作.

Thus, if I change every \n in the script to \r\n, it works fine on the Mac. But if I do that, it stops working on the Windows PC.

有解决此问题的简便方法吗?

Is there an easy way to fix this problem?

推荐答案

我想这可能取决于您从中读取的内容，但是内置的open()函数采用"mode"参数，如果您通过对于"U"模式，Python将以跨平台的方式透明地处理换行符.它要求Python具有通用的换行符支持，但请对其进行测试！

I guess it may depend on what you're reading from, but the built-in open() function takes a 'mode' parameter, and if you pass 'U' for the mode, Python will take care of the newlines in a cross-platform way transparently. It requires that Python be built with universal newline support, but test it out!

http://docs.python.org/library/functions.html#open

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