在python中寫入XML文件損壞文件

Question

我正在嘗試將xml.dom.minidom對象中的內容寫入文件。簡單的想法是使用'writexml'方法：

import codecs 

def write_xml_native(): 
    # Building DOM from XML 
    xmldoc = minidom.parse('semio2.xml') 
    f = codecs.open('codified.xml', mode='w', encoding='utf-8') 
    # Using native writexml() method to write 
    xmldoc.writexml(f, encoding="utf=8") 
    f.close() 

問題是它破壞了文件中的非拉丁文編碼文本。另一種方式是讓文本字符串，並將其寫入到文件中明確：

def write_xml(): 
    # Building DOM from XML 
    xmldoc = minidom.parse('semio2.xml') 
    # Opening file for writing UTF-8, which is XML's default encoding 
    f = codecs.open('codified3.xml', mode='w', encoding='utf-8') 
    # Writing XML in UTF-8 encoding, as recommended in the documentation 
    f.write(xmldoc.toxml("utf-8")) 
    f.close() 

這將導致以下錯誤：

Traceback (most recent call last): 
    File "D:\Projects\Semio\semioparser.py", line 45, in <module> 
    write_xml() 
    File "D:\Projects\Semio\semioparser.py", line 42, in write_xml 
    f.write(xmldoc.toxml(encoding="utf-8")) 
    File "C:\Python26\lib\codecs.py", line 686, in write 
    return self.writer.write(data) 
    File "C:\Python26\lib\codecs.py", line 351, in write 
    data, consumed = self.encode(object, self.errors) 
UnicodeDecodeError: 'ascii' codec can't decode byte 0xd0 in position 2064: ordinal not in range(128) 

如何編寫一個XML文本文件？我錯過了什麼？

編輯。錯誤通過添加解碼語句來解決： f.write(xmldoc.toxml("utf-8").decode("utf-8")) 但是，俄羅斯符號仍然損壞。

在解釋器中查看文本時，文本沒有被破壞，但是在文件中寫入文本時。

Answer 1

嗯，雖然這應該工作：

xml = minidom.parse("test.xml") 
with codecs.open("out.xml", "w", "utf-8") as out: 
    xml.writexml(out) 

你可以或者嘗試：

with codecs.open("test.xml", "r", "utf-8") as inp: 
    xml = minidom.parseString(inp.read().encode("utf-8")) 
with codecs.open("out.xml", "w", "utf-8") as out: 
    xml.writexml(out) 

更新：如果您構建XML列的字符串對象，你應該傳遞之前對其進行編碼到minidom解析器，像這樣：

#!/usr/bin/env python 
# -*- coding: utf-8 -*- 

import codecs 
import xml.dom.minidom as minidom 

xml = minidom.parseString(u"<ru>Тест</ru>".encode("utf-8")) 
with codecs.open("out.xml", "w", "utf-8") as out: 
    xml.writexml(out) 

Answer 2

試試這個：

with open("codified.xml", "w") as f: 
    f.write(xmldoc.toxml("utf-8").decode("utf-8")) 

這對我的作品（Python 3的下，雖然）。