本文实例讲述了Python获取任意xml节点值的方法。分享给大家供大家参考。具体实现方法如下： # -*- coding: utf-8 -*-

import xml.dom.minidom

ELEMENT_NODE = xml.dom.Node.ELEMENT_NODE

class SimpleXmlGetter(object):

def __init__(self, data):

if type(data) == str:

self.root = xml.dom.minidom.parse(data)

else:

self.root = data

def __getattr__(self, name): #support . operation

if name == 'data':

return self.root.firstChild.data

for c in self.root.childNodes:

if c.nodeType == ELEMENT_NODE and c.tagName == name:

return SimpleXmlGetter(c)

def __getitem__(self, index): #support [] operation

eNodes = [ e for e in self.root.parentNode.childNodes

if e.nodeType == ELEMENT_NODE and e.tagName == self.root.tagName]

return SimpleXmlGetter(eNodes[index])

def __call__(self, *args, **kwargs): #support () openration, for query conditions

for e in self.root.parentNode.childNodes:

if e.nodeType == ELEMENT_NODE:

for key in kwargs.keys():

if e.getAttribute(key) != kwargs[key]:

break

else:

return SimpleXmlGetter(e)

if __name__ == "__main__":

x = SimpleXmlGetter("sysd.xml")

print x.sysd.sysagent.param[2].data

print x.sysd.sysagent.param(name="querytimeout", type="second").data

希望本文所述对大家的Python程序设计有所帮助。