Extracting the introduction part of a Wikipedia article, by python

I want to extract the introduction part of a wikipedia article(ignoring all other stuff, including tables, images and other parts). I looked at html source of the articles, but I don't see any special tag which this part is wrapped in.

Can anyone give me a quick solution to this开发者_开发技巧? I'm writing python scripts.

thanks

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1. You may want to check mwlib to parse the wikipedia source
2. Alternatively, use the wikidump lib
3. HTML screen scraping through BeautifulSoup

Ah, there is a question already on SO on this topic:

1. Parsing a Wikipedia dump
2. How to parse/extract data from a mediawiki marked-up article via python

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I think you can often get to the intro text by taking the full page, stripping out all the tables, and then looking for the first sequence of <p>...</p> blocks after the marker. That last bit would be this regex:

/<!-- bodytext -->.*?(<p>.*?<\/p>\s*)+/

With the .S option to make . match newlines...