#coding:utf8import urlparsefrom bs4 import BeautifulSoupimport re__author__ = 'wang'class HtmlParser(object):    def parse(self, page_url, html_cont):        if page_url is None or html_cont is None:            return        soup = BeautifulSoup(html_cont, 'html.parser', from_encoding = 'utf-8')        new_urls = self._get_new_urls(page_url, soup)        new_data = self._get_new_data(page_url, soup)        return new_urls, new_data;    def _get_new_urls(self, page_url, soup):        new_urls = set()        links = soup.find_all('a', href=re.compile(r"/view/\d+\.htm"))        for link in links:            new_url = link['href']            new_full_url = urlparse.urljoin(page_url, new_url);            new_urls.add(new_full_url)        return new_urls    def _get_new_data(self, page_url, soup):        res_data = {}        res_data['url'] = page_url        title_node = soup.find('dd', class_='lemmaWgt-lemmaTitle-title').find("h1")        res_data['title'] = title_node.get_text()        summary_node = soup.find('div', class_ = 'lemma-summary')        res_data['summary'] = summary_node.get_text()        return res_data