python-3.x - lxml xmlsyntaxerror : entity 'ouml' not defined

Question

我正在使用 lxml 和 python 3.5 来解析 xml 文件。

到目前为止我的代码是:

for event, element in etree.iterparse(source, tag="article"):
    for child in element:
        print (child.tag, child.text)
    element.clear()

执行时，我在一段时间后收到以下消息:

 lxml.etree.XMLSyntaxError: Entity 'ouml' not defined, line 47, column 25

我有一个定义了所有实体的 DTD 文件。如何包含文件或定义缺失的实体？

Answer 1

这是我的解决方案:我正在阅读 DTD 文件以按照 CoderBC 的建议进行验证:

from lxml import etree
from lxml.etree import XMLSyntaxError
import sys
import os

source = sys.argv[1]
dtd = etree.DTD(file=sys.argv[2])#read DTD
count = 0
#iterate through nodes
for event, element in etree.iterparse(source, load_dtd=True):
   count += 1
   #print all children
   for child in element:
      print(child.tag, child.text)
element.clear()

print("Final Count :", count)