在python中写入XML文件损坏文件

Question

我正在尝试将xml.dom.minidom对象中的内容写入文件。简单的想法是使用'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() 

问题是它破坏了文件中的非拉丁文编码文本。另一种方式是让文本字符串，并将其写入到文件中明确：

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() 

这将导致以下错误：

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) 

如何编写一个XML文本文件？我错过了什么？

编辑。错误通过添加解码语句来解决： f.write(xmldoc.toxml("utf-8").decode("utf-8")) 但是，俄罗斯符号仍然损坏。

在解释器中查看文本时，文本没有被破坏，但是在文件中写入文本时。

Answer 1

嗯，虽然这应该工作：

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

你可以或者尝试：

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：如果您构建XML列的字符串对象，你应该传递之前对其进行编码到minidom解析器，像这样：

#!/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

试试这个：

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

这对我的作品（Python 3的下，虽然）。