ASCII非ASCII转换Python 2.7

我在尝试重新编码非ASCII字符时遇到问题。 我有这个功能：

#function to treat special characters 
tagsA=["À","Á","Â","à","á","â","Æ","æ"]
tagsC=["Ç","ç"]
tagsE=["È","É","Ê","Ë","è","é","ê","ë"]
tagsI=["Ì","Í","Î","Ï","ì","í","î","ï"]
tagsN=["Ñ","ñ"]
tagsO=["Ò","Ó","Ô","Œ","ò","ó","ô","œ"]
tagsU=["Ù","Ú","Û","Ü","ù","ú","û","ü"]
tagsY=["Ý","Ÿ","ý","ÿ"]

def toASCII(word):
    for i in range (0, len(word),1):
        if any(word[i] in s for s in tagsA):
           word[i]="a"
        if any(word[i] in s for s in tagsC):
           word[i]="c"
        if any(word[i] in s for s in tagsE):
           word[i]="e"
        if any(word[i] in s for s in tagsI):
           word[i]="i"
        if any(word[i] in s for s in tagsN):
           word[i]="n"
        if any(word[i] in s for s in tagsO):
           word[i]="o"
        if any(word[i] in s for s in tagsU):
           word[i]="u"
        if any(word[i] in s for s in tagsY):
           word[i]="y"
    print word
    return word

我通常会遇到以下错误： UnicodeDecodeError:“ascii”编解码器无法解码位置1中的字节0xc3:序号不在范围128中

试图将编码更改为utf8，但没有改变问题

 # -*- coding: utf-8 -*-

您可以使用unicodedata模块删除字符串中的所有重音符号

例：

输出：

---

使用步长为1的范围？为什么指定1？@ArnavBorborah我对整个字符串逐个字符进行处理，您可以将步骤留空，它将自动设置为1。这是一种非常糟糕的方法。您将需要处理许多边缘情况。Python支持这一内置功能。为什么不使用这些函数？@OptimusCrime对于这样的问题，我可以使用哪些函数？UnicodeDecodeError并不是唯一的问题。

import unicodedata
print unicodedata.normalize('NFKD', u"ÀÁ").encode('ASCII', 'ignore')

AA