有没有办法改变Python的open()默认文本编码? [英] Is there a way to change Python's open() default text encoding?

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问题描述

我可以更改默认 open() io.open() in 2.7 跨平台的文本编码?



我不需要每次指定 open(...,encoding ='utf-8')



< blockquote>

在文本模式下,如果未指定编码,则使用的编码取决于平台: locale.getpreferredencoding(False)调用以获取当前的区域设置编码。


虽然文档没有指定如何编码。该函数位于 locale 模块中,因此我需要更改区域设置?有没有可靠的跨平台方法来设置UTF-8区域设置?它会影响除默认文本文件编码以外的任何其他内容吗?



或者区域设置更改是危险的(可以打破某些东西),我应该坚持自定义包装如: / p>

  def uopen(* args,** kwargs):
return open(* args,encoding ='UTF-8 ',** kwargs)


解决方案

语言环境或首选编码,因为;




  • 它可能会影响代码的其他部分(或您使用的库);和

  • 它不会清楚,您的代码依赖打开使用特定的编码。



    • 而是使用一个简单的包装器:

        from functools import partial 
      open_utf8 = partial(open,encoding ='UTF-8')




      • 您可以为所有关键字参数指定默认值(如果需要)。

      • 可以在调用该函数时覆盖默认值。


      Can I change default open() (io.open() in 2.7) text encoding in a cross-platform way?

      So that I didn't need to specify each time open(...,encoding='utf-8').

      In text mode, if encoding is not specified the encoding used is platform dependent: locale.getpreferredencoding(False) is called to get the current locale encoding.

      Though documentation doesn't specify how to set preferred encoding. The function is in locale module, so I need to change locale? Is there any reliable cross-platform way to set UTF-8 locale? Will it affect anything else other than the default text file encoding?

      Or locale changes are dangerous (can break something), and I should stick to custom wrapper such as:

      def uopen(*args, **kwargs):
          return open(*args, encoding='UTF-8', **kwargs)
      

      解决方案

      Don't change the locale or preferred encoding because;

      • it may affect other parts of your code (or the libraries you're using); and
      • it wont be clear that your code depends on open using a specific encoding.

      Instead, use a simple wrapper:

      from functools import partial
      open_utf8 = partial(open, encoding='UTF-8')
      

      This has two other advantages:

      • You can specify defaults for all keyword arguments (should you need to).
      • You can override the defaults when calling the function.

      这篇关于有没有办法改变Python的open()默认文本编码?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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