我尝试用Python解析一个大的xml文件,但是当我想打印CDATA信息时,没有任何内容,尤其是使用“content”标记作为描述
我的源代码如下:
#!/usr/bin/python
# -*- coding: utf-8 -*-
import xml.sax
import re
from cStringIO import StringIO
class MovieHandler( xml.sax.ContentHandler ):
def __init__(self):
self.item = {}
self.CurrentData = ""
self.url = ""
self.description = ""
self.price = ""
# Call when an element starts
def startElement(self, tag, attributes):
self.CurrentData = tag
# Call when an elements ends
def endElement(self, tag):
elif self.CurrentData == "url":
self.item["url"] = self.url
elif self.CurrentData == "content":
print 'description: ', self.description
elif self.CurrentData == "price":
if self.price:
self.price = re.sub('[^0-9]','',self.price[0].encode('ascii', 'ignore'))
self.item["price"] = int(self.price)
self.CurrentData = ""
print self.item
self.item.clear()
# Call when a character is read
def characters(self, content):
if self.CurrentData == "url":
self.url = content
elif self.CurrentData == "content":
self.description = content
elif self.CurrentData == "price":
self.price = content
if ( __name__ == "__main__"):
# create an XMLReader
parser = xml.sax.make_parser()
# turn off namepsaces
parser.setFeature(xml.sax.handler.feature_namespaces, 0)
# override the default ContextHandler
Handler = MovieHandler()
parser.setContentHandler(Handler)
parser.parse("myfile.xml")
print "done"
内容标签如下所示:
^{pr2}$提前谢谢
可以多次调用
.characters()
函数,每次都使用文本片段。似乎每次调用都会覆盖self.description
。在试试这个:
并且记住在完成后设置
self.description = ""
。在相关问题 更多 >
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