lxml.html删除节点树和tag对
# encoding: utf-8
import StringIO
from apihelper import info, info_save
from lxml import etree, html
from lxml.html.clean import Cleaner
strhtml = ‘‘‘\
<html>
<head>
<script type="text/javascript" src="evil-site"></script>
<link rel="alternate" type="text/rss" src="evil-rss">
<style>
body {background-image: url(javascript:do_evil)};
div {color: expression(evil)};
</style>
</head>
<body onload="evil_function()">
<!-- I am interpreted for EVIL! -->
<a href="javascript:evil_function()">a link</a>
<a href="#" onclick="evil_function()">another link</a>
<p onclick="evil_function()">a paragraph</p>
<div style="display: none">secret EVIL!</div>
<object> of EVIL! </object>
<iframe src="evil-site"></iframe>
<form action="evil-site">
Password: <input type="password" name="password">
</form>
<blink>annoying EVIL!</blink>
<a href="evil-site">spam spam SPAM!</a>
<image src="evil!">
<div id=‘nav‘ class=‘nav‘>this is nav</div>
</body>
</html>‘‘‘
# strhtml = ‘‘‘<html><head></head>
# <body><div>aaa</div></body>
# </html>‘‘‘
etree.DEBUG = 1
print etree.LIBXML_VERSION
utf8_parser=html.HTMLParser(encoding=‘utf8‘)
# f = open(xmlFile)
# xml = f.read()
# f.close()
doc=html.fromstring(strhtml, parser=utf8_parser)
# weather = doc.xpath(‘body/object‘)
# doc.find(‘.//body/object‘).drop_tag()
# doc.find(‘.//body/object‘).drop_tree()
doc.find(‘.//body‘).drop_tree()
# print ‘\r\n‘.join(doc)
# print info_save(doc)
# print html.tostring(doc)
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