UnicodeDecodeError：'charmap'编码解码器不能在位置Y处编码字符X：字符映射到未定义 [英] UnicodeDecodeError: 'charmap' codec can't encode character X at position Y: character maps to undefined

问题描述

要澄清：此问题与这一个不重复我已经尝试了所有的提示，没有得到答案。

我有一个带有unicode数据的txt文件，我想以字符串的形式打开文件。我试过

  a = open（'myfile.txt' ，'r'，encoding ='utf-8'）
 print a.read（）
  

但是有一个错误说：

UnicodeDecodeError：'charmap'编解码器不能将字符'\\\'编码为
位置Y：字符映射到未定义

现在我的问题是，我根本不在乎我的UTF-8字符，有没有一个例外，每当python遇到utf-8字符只是删除它或传递它？另外要澄清一点，我尝试过使用utf-8，utf-8-sig，utf-16等编码。

尝试这样做，但没有运气。

  a = open（'myfile.txt'，'r'，encoding ='utf -8'）
 try：
 print a.read（）
除了：
 pass 
  

我还尝试导入编解码器和代码如下：

  a = codecs.open 'myfile.txt'，'r'，encoding ='utf-8'）
打印a.read（）
  

但仍然出现同样的错误。

解决方案

修正 print 语句中的编码答案：
避免打印到 stdout Windows，因为Python假定CMD终端只能处理Windows-1252（拉丁语1的ISO的MS副本）。通常始终打印到 stderr 而不是：

  import sys 
 print（'your text'，file = sys.stderr）
  

在Linux上应该对于Python 2.x，不要打印Unicode。

PS：对于Python 2.x：

$ _ code从__future__导入print_function
导入sys
打印（'你的文本'，文件= sys.stderr）

PPS：
原始答案
对于python 3.x ：

  a = open（'myfile.txt'，'r'，encoding ='utf-8'，errors =忽略'）
  

请参阅 https://docs.python.org/3/library/codecs.html#error-handlers ，以获取您的选项的详细列表

To CLARIFY: this question is not a duplicate of this one, I have already tried all the hints there and didn't get the answer.

I have a txt file with unicode data in, and am want to open the file as an string.

I tried

a=open('myfile.txt', 'r', encoding='utf-8') 
print a.read()

but there is an error saying:

UnicodeDecodeError: 'charmap' codec can't encode character '\ufeff' at position Y: character maps to undefined

Now my question is, I don't care about my UTF-8 characters at all, is there anyway to put an exception that whenever python is encountering utf-8 character just remove it or pass it? Also to clarify, I have tried the encoding with, utf-8, utf-8-sig, utf-16 and etc.

I tried this as well but no luck.

a=open('myfile.txt', 'r', encoding='utf-8') 
try:
    print a.read()
except:
    pass

I also tried importing codecs and the code below:

a=codecs.open('myfile.txt', 'r', encoding='utf-8') 
print a.read()

but still same error is popping out.

解决方案

Correcting my answer for encoding in print statement: Avoid printing to stdout Windows, because Python assumes that CMD terminal can only handle Windows-1252 (MS copy of ISO of latin-1). This is easily sidestepped by always printing to stderr instead:

import sys
print('your text', file=sys.stderr)

On Linux there should be no issue with printing Unicode correctly.

P.S.: for Python 2.x:

from __future__ import print_function
import sys
print('your text', file=sys.stderr)

P.P.S.: Original answer: For python 3.x:

a=open('myfile.txt', 'r', encoding='utf-8', errors='ignore') 

See https://docs.python.org/3/library/codecs.html#error-handlers for a detailed list of your options

这篇关于UnicodeDecodeError：'charmap'编码解码器不能在位置Y处编码字符X：字符映射到未定义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！