how to get the source of html in lxml?

Date	2012-12-31 14:32 +0800
Subject	how to get the source of html in lxml?
From	contro opinion <contropinion@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.1485.1356935528.29569.python-list@python.org> (permalink)

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import urllibimport lxml.html
down='http://blog.sina.com.cn/s/blog_71f3890901017hof.html'
file=urllib.urlopen(down).read()
root=lxml.html.document_fromstring(file)
body=root.xpath('//div[@class="articalContent  "]')[0]print body.text_content()

When i run the code, what i get is the text content ,how can i get the html
source code of it?

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how to get the source of html in lxml? contro opinion <contropinion@gmail.com> - 2012-12-31 14:32 +0800

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