57 lines
1.4 KiB
Python
57 lines
1.4 KiB
Python
'''Searches wikipedia and returns first sentence of article
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Scaevolus 2009'''
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import urllib
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from lxml import etree
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import re
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import hook
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api_prefix = "http://en.wikipedia.org/w/api.php"
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search_url = api_prefix + "?action=opensearch&search=%s&format=xml"
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paren_re = re.compile('\s*\(.*\)$')
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@hook.command(hook='w(\s+.*|$)')
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@hook.command
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def wiki(query):
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'''.w/.wiki <phrase> -- gets first sentence of wikipedia ''' \
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'''article on <phrase>'''
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if not query.strip():
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return wiki.__doc__
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q = search_url % (urllib.quote(query.strip(), safe=''))
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x = etree.parse(q)
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ns = '{http://opensearch.org/searchsuggest2}'
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items = x.findall(ns + 'Section/' + ns + 'Item')
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if items == []:
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if x.find('error') is not None:
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return 'error: %(code)s: %(info)s' % x.find('error').attrib
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else:
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return 'no results found'
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def extract(item):
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return [item.find(ns + x).text for x in
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('Text', 'Description', 'Url')]
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title, desc, url = extract(items[0])
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if 'may refer to' in desc:
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title, desc, url = extract(items[1])
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title = paren_re.sub('', title)
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if title.lower() not in desc.lower():
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desc = title + desc
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desc = re.sub('\s+', ' ', desc).strip() #remove excess spaces
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if len(desc) > 300:
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desc = desc[:300] + '...'
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return '%s -- %s' % (desc, url)
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