在Python中-解析响应xml并查找特定的文本值 [英] In Python - Parsing a response xml and finding a specific text vaule

问题描述

我是python的新手，我在使用xml和python时特别困难.我遇到的情况是这种情况，我试图计算一个单词在xml文档中出现的次数.很简单，但是xml文档是服务器的响应.是否可以在不写入文件的情况下执行此操作?尝试从内存中做到这一点非常好.

I'm new to python and I'm having a particularly difficult time working with xml and python. The situation I have is this, I'm trying to count the number of times a word appears in an xml document. Simple enough, but the xml document is a response from a server. Is it possible to do this without writing to a file? It would be great trying to do it from memory.

这是示例xml代码:

<xml>
  <title>Info</title>
    <foo>aldfj</foo>
      <data>Text I want to count</data>
</xml>

这是我在python中拥有的

Here is what I have in python

import urllib2
import StringIO
import xml.dom.minidom
from xml.etree.ElementTree import parse
usock = urllib.urlopen('http://www.example.com/file.xml') 
xmldoc = minidom.parse(usock)
print xmldoc.toxml()

过去，这一点我尝试使用StringIO，ElementTree和minidom均未成功，但到了不确定要做什么的地步.

Past This point I have tried using StringIO, ElementTree, and minidom to no success and I have gotten to a point where I'm not sure what else to do.

任何帮助将不胜感激

推荐答案

如果您只是想计算单词在XML文档中出现的次数，只需将文档作为字符串读取并进行计数:

If you are just trying to count the number of times a word appears in an XML document, just read the document as a string and do a count:

import urllib2
data = urllib2.urlopen('http://www.example.com/file.xml').read()
print data.count('foobar')

否则，您可以遍历要查找的标签:

Otherwise, you can just iterate through the tags you are looking for:

from xml.etree import cElementTree as ET
xml = ET.fromstring(urllib2.urlopen('http://www.example.com/file.xml').read())
for data in xml.getiterator('data'):
    # do something with
    data.text

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