from baidu import url_manager, html_downloader, html_parser, html_outputer

class SpiderMain(object):

    def _init_(self):

        self.urls=url_m

anager.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:

                print ('craw fail')

        self.outputer.output_html()

if __name__=='__main__':

    root_url="https://baike.baidu.com/item/Python/407313"

    obj_spider=SpiderMain()

    obj_spider.craw(root_url)