|  | from lxml import html
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							|  | from urllib import urlencode
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							|  | from cgi import escape
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							|  | 
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							|  | base_url = 'http://www.bing.com/'
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							|  | search_string = 'search?{query}'
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							|  | language = 'en-us' # see http://msdn.microsoft.com/en-us/library/dd251064.aspx
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							|  | 
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							|  | 
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							|  | def request(query, params):
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							|  |     search_path = search_string.format(query=urlencode({'q': query, 'setmkt': language}))
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							|  |     #if params['category'] == 'images':
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							|  |     #    params['url'] = base_url + 'images/' + search_path
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							|  |     params['url'] = base_url + search_path
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							|  |     return params
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							|  | 
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							|  | 
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							|  | def response(resp):
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							|  |     global base_url
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							|  |     results = []
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							|  |     dom = html.fromstring(resp.content)
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							|  |     for result in dom.xpath('//div[@class="sa_cc"]'):
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							|  |         link = result.xpath('.//h3/a')[0]
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							|  |         url = link.attrib.get('href')
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							|  |         title = ' '.join(link.xpath('.//text()'))
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							|  |         content = escape(' '.join(result.xpath('.//p//text()')))
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							|  |         results.append({'url': url, 'title': title, 'content': content})
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							|  | 
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							|  |     if results:
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							|  |         return results
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							|  | 
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							|  |     for result in dom.xpath('//li[@class="b_algo"]'):
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							|  |         link = result.xpath('.//h2/a')[0]
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							|  |         url = link.attrib.get('href')
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							|  |         title = ' '.join(link.xpath('.//text()'))
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							|  |         content = escape(' '.join(result.xpath('.//p//text()')))
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							|  |         results.append({'url': url, 'title': title, 'content': content})
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							|  |     return results
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