求教。。AttributeError: 'SpiderMain' object has no attribute 'craw'​

Question

Traceback (most recent call last):
  File "spider_main.py", line 37, in <module>
    obj_spider.craw(root_url)
AttributeError: 'SpiderMain' object has no attribute 'craw'

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 == 100:
                    break;

                count = count + 1
            except:
                print 'craw failed'

        self.outputer.output_html()

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

谢谢谢谢！找了半天了。。也没找到什么拼写错误。。缩进也都检查了。。。

Answer 1

两个下划线和一个下划线有很大区别 检查了么？＠_＠ 本人新手 只能从自己知道的说说