python写xml文件的操作实例

<?xml version="1.0" ?> 
<!--simple xml document__chapter 8--> 
<book> 
  <title> 
    sample xml thing 
  </title> 
  <author> 
    <name> 
      <first> 
        ma 
      </first> 
      <last> 
        xiaoju 
      </last> 
    </name> 
    <affiliation> 
      springs widgets, inc. 
    </affiliation> 
  </author> 
  <chapter number="1"> 
    <title> 
      first 
    </title> 
    <para> 
      i think widgets are greate.you should buy lots of them forom 
      <company> 
        spirngy widgts, inc 
      </company> 
    </para> 
  </chapter> 
</book> 

from xml.dom import minidom, node 
 
doc = minidom.document() 
 
doc.appendchild(doc.createcomment("simple xml document__chapter 8")) 
 
#generate the book 
book = doc.createelement('book') 
doc.appendchild(book) 
 
#the title 
title = doc.createelement('title') 
title.appendchild(doc.createtextnode("sample xml thing")) 
book.appendchild(title) 
 
#the author section 
author = doc.createelement("author") 
book.appendchild(author) 
name = doc.createelement('name') 
author.appendchild(name) 
firstname = doc.createelement('first') 
firstname.appendchild(doc.createtextnode("ma")) 
name.appendchild(firstname) 
lastname = doc.createelement('last') 
name.appendchild(lastname) 
lastname.appendchild(doc.createtextnode("xiaoju")) 
 
affiliation = doc.createelement("affiliation") 
affiliation.appendchild(doc.createtextnode("springs widgets, inc.")) 
author.appendchild(affiliation) 
 
#the chapter 
chapter = doc.createelement('chapter') 
chapter.setattribute('number', '1') 
title = doc.createelement('title') 
title.appendchild(doc.createtextnode("first")) 
chapter.appendchild(title) 
book.appendchild(chapter) 
 
para = doc.createelement('para') 
para.appendchild(doc.createtextnode("i think widgets are greate.\ 
you should buy lots of them forom")) 
company = doc.createelement('company') 
company.appendchild(doc.createtextnode("spirngy widgts, inc")) 
para.appendchild(company) 
chapter.appendchild(para) 
 
print doc.toprettyxml()