我正在尝试使用 scrapy 从维基百科中抓取详细信息。我能够刮掉它，但我得到了一个非常混乱和糟糕的结果。因为我是python和scrapy的新手，所以我很难解决这个问题。
这是我的代码：
from scrapy.spider import BaseSpider
from scrapy.selector import HtmlXPathSelector
from wikipedia.items import WikipediaItem
class WikipediaSpider(BaseSpider):
name = "wiki"
allowed_domains = ["wikipedia.org"]
start_urls = ["http://en.wikipedia.org/wiki/Main_Page"]
def parse(self, response):
hxs = HtmlXPathSelector(response)
sites = hxs.select('//table[@id="mp-upper"]/tr')
items = []
for site in sites:
item = WikipediaItem()
item['title'] = site.select('.//a/text()').extract()
item['link'] = site.select('.//a/@href').extract()
item['details'] = site.select('.//p/text()').extract()
items.append(item)
return items
这是结果：
2013-04-19 02:18:48+0800 [wiki] DEBUG: Scraped from <200 http://en.wikipedia.org/wiki/Main_Page>
{'details': [u' is a fungal species found in moist habitats in ',
u'. The species produces brown ',
u' with ',
u' of varying shapes up to 40 millimetres (1.6\xa0in) across, and tall, thin ',
u' up to 62 millimetres (2.4\xa0in) long, at the base of which is a large and well-defined "bulb". The stem varies in colour, with whitish, pale yellow-brown, pale red-brown, pale brown and grey-brown all observed. The species produces unusually shaped, irregular ',
u', each with a few thick protrusions. This feature helps differentiate it from other species that would otherwise be similar in appearance and ',
u'. It grows in ',
u' association with ',
u', and it is for this that the species is named. However, particular species favoured by the fungus are unclear and may include ',
u' and ',
u' taxa. The mushrooms grow from the ground, often among mosses or ',
u'. The species was first described in 2009, and within the genus ',
u', it is a part of the ',
u' ',
u'. The ',
u' ',
u' was collected from the shore of a lake near ',
u', Finland. The species has also been recorded in Sweden and, at
least in some areas, it is relatively common. (',
u')',
u'Recently featured: ',
u'\xa0\u2013 ',
u'\xa0\u2013 ',
u': ',
u' ',
u' ',
u'More anniversaries: ',
u' ',
u' '],
'link': [u'/wiki/File:Inocybe_saliceticola.jpg',
u'/wiki/Inocybe_saliceticola',
u'/wiki/Nordic_countries',
u'/wiki/Mushrooms',
u'/wiki/Pileus_(mycology)',
u'/wiki/Stipe_(mycology)',
u'/wiki/Spore',
u'/wiki/Habit_(biology)',
u'/wiki/Mycorrhizal',
u'/wiki/Willow',
u'/wiki/Beech',
u'/wiki/Alder',
u'/wiki/Detritus',
u'/wiki/Section_(botany)',
u'/wiki/Holotype',
u'/wiki/Nurmes',
u'/wiki/Inocybe_saliceticola',
u'/wiki/Thistle,_Utah',
u'/wiki/Be_Here_Now_(album)',
u'/wiki/Sumatran_rhinoceros',
u'/wiki/Wikipedia:Today%27s_featured_article/April_2013',
u'https://lists.wikimedia.org/mailman/listinfo/daily-article-l',
u'/wiki/Wikipedia:Featured_articles',
u'/wiki/Wikipedia:Recent_additions',
u'/wiki/File:Ezra_Meeker_1921_crop.jpg',
u'/wiki/Ezra_Meeker',
u'/wiki/Oregon_Trail',
u'/wiki/Bullock_cart',
u'/wiki/Italy_at_the_2009_Mediterranean_Games',
u'/wiki/2009_Mediterranean_Games_medal_table',
u'/wiki/Cossack_hetman',
u'/wiki/Ivan_Petrizhitsky-Kulaga',
u'/wiki/Cossacks',
u'/wiki/Fokus_(magazine)',
u'/wiki/Amir_Garrett',
u'/wiki/College_basketball',
u'/wiki/Fastball',
u'/wiki/Armenian_Genocide',
u'/wiki/Karin_dialect',
u'/wiki/Scottish_American',
u'/wiki/Daniel_Pennie_House',
u'/wiki/Wikipedia:Recent_additions',
u'/wiki/Wikipedia:Your_first_article',
u'/wiki/Template_talk:Did_you_know',
u'/wiki/Slang',
u'/wiki/Hammer',
u'/wiki/Church_(building)',
u'/wiki/Wikipedia:Today%27s_articles_for_improvement',
u'/wiki/File:2013_Boston_Marathon_aftermath_people.jpg',
u'/wiki/West_fertilizer_plant_explosion',
u'/wiki/West,_Texas',
u'/wiki/Texas',
u'/wiki/Moment_magnitude_scale',
u'/wiki/2013_Sistan_and_Baluchestan_earthquake',
u'/wiki/Sistan_and_Baluchestan_Province',
u'/wiki/15_April_2013_Iraq_attacks',
u'/wiki/Boston_Marathon_bombings',
u'/wiki/2013_Boston_Marathon',
u'/wiki/Death_and_state_funeral_of_Hugo_Ch%C3%A1vez',
u'/wiki/Nicol%C3%A1s_Maduro',
u'/wiki/Venezuelan_presidential_election,_2013',
u'/wiki/List_of_Presidents_of_Venezuela',
u'/wiki/Adam_Scott_(golfer)',
u'/wiki/2013_Masters_Tournament',
u'/wiki/Government_of_India',
u'/wiki/Bollywood',
u'/wiki/Pran',
u'/wiki/Dadasaheb_Phalke_Award',
u'/wiki/Deaths_in_2013',
u'/wiki/Colin_Davis',
u'/wiki/Maria_Tallchief',
u'/wiki/Jonathan_Winters',
u'//en.wikinews.org/wiki/Main_Page',
u'/wiki/Portal:Current_events',
u'/wiki/April_18',
u'/wiki/File:Stpetes.JPG',
u'/wiki/1506',
u'/wiki/St._Peter%27s_Basilica',
u'/wiki/Vatican_City',
u'/wiki/Old_St._Peter%27s_Basilica',
u'/wiki/1689',
u'/wiki/Militia_(United_States)',
u'/wiki/Boston',
u'/wiki/1689_Boston_revolt',
u'/wiki/Dominion_of_New_England',
u'/wiki/1923',
u'/wiki/New_York_Yankees',
u'/wiki/Major_League_Baseball',
u'/wiki/Yankee_Stadium_(1923)',
u'/wiki/1938',
u'/wiki/Superman',
u'/wiki/Jerry_Siegel',
u'/wiki/Joe_Shuster',
u'/wiki/Action_Comics_1',
u'/wiki/Superhero',
u'/wiki/Comic_book',
u'/wiki/1947',
u'/wiki/List_of_the_largest_artificial_non-nuclear_explosions',
u'/wiki/Royal_Navy',
u'/wiki/Tonne',
u'/wiki/Ammunition',
u'/wiki/Heligoland',
u'/wiki/1949',
u'/wiki/Republic_of_Ireland',
u'/wiki/Commonwealth_of_Nations',
u'/wiki/1996',
u'/wiki/1996_shelling_of_Qana',
u'/wiki/Qana',
u'/wiki/Operation_Grapes_of_Wrath',
u'/wiki/United_Nations_Interim_Force_in_Lebanon',
u'/wiki/April_17',
u'/wiki/April_18',
u'/wiki/April_19',
u'/wiki/Wikipedia:Selected_anniversaries/April',
u'https://lists.wikimedia.org/mailman/listinfo/daily-article-l',
u'/wiki/List_of_historical_anniversaries',
u'/wiki/Coordinated_Universal_Time',
u'//en.wikipedia.org/w/index.php?title=Main_Page&action=purge'],
'title': [u'Inocybe saliceticola',
u'Nordic countries',
u'mushrooms',
u'caps',
u'stems',
u'spores',
u'habit',
u'mycorrhizal',
u'willow',
u'beech',
u'alder',
u'detritus',
u'section',
u'holotype',
u'Nurmes',
u'Thistle, Utah',
u'Be Here Now',
u'Sumatran rhinoceros',
u'Archive'
u'List of historical anniversaries',
u'UTC',
u'Reload this page']}