将XML写入文件会破坏python中的文件

Question

我正在尝试从一个xml.dom.minidom对象写入内容.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.另一种方法是获取文本字符串并将其显式写入文件:

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()

这会导致以下错误:

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)

如何将XML文本写入文件？我错过了什么？

编辑.通过添加解码语句修复错误: f.write(xmldoc.toxml("utf-8").decode("utf-8")) 但俄语符号仍然已损坏.

在解释器中查看时文本不会被破坏,但是当它被写入文件时.

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:如果您从字符串对象构造xml,您应该在传递给minidom解析器之前对其进行编码,如下所示:

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

import codecs
import xml.dom.minidom as minidom

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