python写xml文件的操作

要生成的xml文件格式如下：
[python]
<?xml version="1.0" ?>

<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>

代码：
[python]
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()

摘自小驹的专栏

补充：Web开发 , Python ,