向python添加编码别名 [英] Adding encoding alias to python

问题描述

有没有一种方法可以向python添加别名进行编码。网络上有一些网站使用的编码为 windows-1251，但其字符集设置为win-1251，所以我想将win-1251用作Windows-1251的别名

Is there a way that I can add alias to python for encoding. There are sites on the web that are using the encoding 'windows-1251' but have their charset set to win-1251, so I would like to have win-1251 be an alias to windows-1251

推荐答案

encodings 模块的文档不完整，因此我将使用 codecs ，是：

The encodings module is not well documented so I'd instead use codecs, which is:

import codecs

def encalias(oldname, newname):
  old = codecs.lookup(oldname)
  new = codecs.CodecInfo(old.encode, old.decode, 
                         streamreader=old.streamreader,
                         streamwriter=old.streamwriter,
                         incrementalencoder=old.incrementalencoder,
                         incrementaldecoder=old.incrementaldecoder,
                         name=newname)
  def searcher(aname):
    if aname == newname:
      return new
    else:
      return None
  codecs.register(searcher)

这是Python 2.6-界面有所不同

This is Python 2.6 -- the interface is different in earlier versions.

如果您不介意使用特定版本的未记录内部结构，@ Lennart的别名处理当然也可以-确实比这更简单； -）。但我怀疑（正如他看来的那样）这一点更容易维护。

If you don't mind relying on a specific version's undocumented internals, @Lennart's aliasing approach is OK, too, of course - and indeed simpler than this;-). But I suspect (as he appears to) that this one is more maintainable.

这篇关于向python添加编码别名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！