为了方便地在python中处理XML，我喜欢Beautiful Soup库。它的工作原理如下：
示例XML文件：
<root>
<level1>leaf1</level1>
<level2>leaf2</level2>
</root>
Python代码：
from BeautifulSoup import BeautifulStoneSoup, Tag, NavigableString
soup = BeautifulStoneSoup('config-template.xml') # get the parser for the xml file
soup.contents[0].name
# u'root'
soup.root.contents[0].name
# u'level1'
也可以使用正则表达式：
import re
tags_starting_with_level = soup.findAll(re.compile('^level'))
for tag in tags_starting_with_level: print tag.name
# level1
# level2
添加和插入新节点非常简单：
# build and insert a new level with a new leaf
level3 = Tag(soup, 'level3')
level3.insert(0, NavigableString('leaf3')
soup.root.insert(2, level3)
print soup.prettify()
# <root>
# <level1>
# leaf1
# </level1>
# <level2>
# leaf2
# </level2>
# <level3>
# leaf3
# </level3>
# </root>
602392714
清零编程群