#?coding:utf8

from?baike_spider?import?url_manager,html_downloader,html_parser,html_outputer


class?SpiderMain(object):
????def?__init__(self):
????????self.urls=url_manager.UrlManager()
????????self.downloader=html_downloader.HtmlDownloader()
????????self.parser=html_parser.HtmlParser()
????????self.outputer=html_outputer.HtmlOutputer()

????def?craw(self,root_url):
????????count=1
????????self.urls.add_new_url(root_url)
????????while?self.urls.has_new_url():
????????????try:
????????????????new_url=self.urls.get_new_url()
????????????????print("craw?%d?:?%s"?%(count,new_url))
????????????????html_cont=self.downloader.download(new_url)
????????????????new_urls,new_data=self.parser.parse(new_url,html_cont)
????????????????self.urls.add_new_urls(new_urls)
????????????????self.outputer.collect_data(new_data)
????????????????if?count==1000:
????????????????????break
????????????????count=count+1
????????????except?Exception?as?e:
????????????????print("craw?failed:"+str(e))
????????self.outputer.output_html()

if?__name__=="__main__":
????root_url="http://baike.baidu.com/view/21087.htm"
????obj_spider=SpiderMain()
????obj_spider.craw(root_url)

打印不出錯誤來