Python操作XML和TXT

Python代码：

# -*- coding: UTF-8 -*-
'''
Created on 2016年3月20日

@author: Administrator
'''
from xml.dom import minidom
import os

def listFiles(path):
    return os.listdir(path)    
    
    
def readXML(xmlPath):
    
    # 加载读取XML文件
    doc = minidom.parse(xmlPath)
      
    # 获取XML文档对象
    root = doc.documentElement
    bookList = root.getElementsByTagName("bookList")[0]
      
    # 获取book节点列表
    bookNodeList = bookList.getElementsByTagName("book")
      
      
    # 节点操作
    for node in bookNodeList: 
#         #读取节点属性为“id”的值
#         book_id = node.getAttribute("id")
        # 读取节点属性为“name”的值
        book_name = node.getAttribute("name")
        
        
        if book_name not in attributeValueList:
            
            attributeValueList.append(book_name)
#         books["id"]=book_id
#         books["name"]=book_name
         
        # 读取节点的文本内容。
#         value=node.childNodes[0].nodeValue
#         valueList["value"]=value


def compareXML(xmlPath):
    
    for tfile in listFiles(xmlPath):
        readXML(xmlPath + os.path.join(tfile))
        
def printList(tlist):
    for tl in tlist:
        print tl

def writeTxt(txtPath, argList):
#     if os.path.exists(txtPath):
#         os.remove(txtPath)
    f = open(txtPath, "w")
    for arg in sorted(argList):
        f.write(arg + "\n")
    f.close()

if __name__ == '__main__':
    
    attributeValueList = []
    
#     valueList={}
#     
#     books={}
    
#     flag=False
    
    xmlPath = "D:\\test\\"
    txtPath = "D:\\out\\out_file.txt"
    
    compareXML(xmlPath)
    
    printList(attributeValueList)
    
    writeTxt(txtPath,attributeValueList)
        
     

    
        
    
    

test.xml：

<?xml version="1.0" encoding="UTF-8"?>
<mybook id="mb001">
	<bookList>
		<book name="bookA" id="A">AAA</book>
		<book name="bookB" id="B">BBB</book>
		<book name="bookD" id="D">DDD</book>
		<book name="bookE" id="E">EEE</book>
	</bookList>
	<bc>
		<bookList>
			<book name="bcbookA" id="A">AAA</book>
			<book name="bcbookB" id="B">BBB</book>
		</bookList>
	</bc>
</mybook>

test2.xml

<?xml version="1.0" encoding="UTF-8"?>
<mybook id="mb001">
	<bookList>
		<book name="bookA" id="A">AAA</book>
		<book name="bookB" id="B">BBB</book>
		<book name="bookC" id="C">CCC</book>
	</bookList>
	<bc>
		<bookList>
			<book name="bcbookA" id="A">AAA</book>
			<book name="bcbookB" id="B">BBB</book>
		</bookList>
	</bc>
	<bcc>
		<bookList>
			<book name="bcbookA" id="A">AAA</book>
			<book name="bcbookB" id="B">BBB</book>
		</bookList>
	</bcc>
</mybook>