python 3.5 解析器代码问题
name 'new_urls' is not defined
这个怎么解决
name 'new_urls' is not defined
这个怎么解决
2016-12-01
#调度程序 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_url,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 err: print(err) self.outputer.output_html() if __name__ == "__main__": root_url = "http://baike.baidu.com/view/21087.htm" obj_spider = SpiderMain() obj_spider.craw(root_url)
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