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Python爬虫包BeautifulSoup学习实例(五)
2021-07-31 24人围观 0条评论
简介这篇文章主要为大家详细介绍了Python爬虫包BeautifulSoup的学习实例,具有一定的参考价值,感兴趣的朋友可以参考一下

    本文为大家分享了Python爬虫包BeautifulSoup学习实例,具体内容如下

    BeautifulSoup

    使用BeautifulSoup抓取豆瓣电影的一些信息。

    # -*- coding: utf-8 -*-
    # @Author: HaonanWu
    # @Date:  2016-12-24 16:18:01
    # @Last Modified by:  HaonanWu
    # @Last Modified time: 2016-12-24 17:25:33
    
    import urllib2
    import json
    from bs4 import BeautifulSoup
    
    def nowplaying_movies(url):
      user_agent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36'
      headers = {'User-Agent':user_agent}
      request = urllib2.Request(url = url, headers = headers)
      response = urllib2.urlopen(request)
      soup_packetpage = BeautifulSoup(response, 'lxml')
      items = soup_packetpage.findAll("li", class_="list-item")
      # items = soup_packetpage.findAll("li", {"class" : "list-item"}) 等价写法
      movies = []
      for item in items:
        if item.attrs['data-category'] == 'nowplaying':
          movie = {}
          movie['title'] = item.attrs['data-title']
          movie['score'] = item.attrs['data-score']
          movie['director'] = item.attrs['data-director']
          movie['actors'] = item.attrs['data-actors']
          movies.append(movie)
          print('%(title)s|%(score)s|%(director)s|%(actors)s' % movie)
    
      return movies
    
    
    
    if __name__ == '__main__':
      url = 'https://movie.douban.com/nowplaying/beijing/'
      movies = nowplaying_movies(url)
    
      print('%s' % json.dumps(movies, sort_keys=True, indent=4, separators=(',', ': ')))
    

    HTMLParser

    使用HTMLParser实现上述功能

    这里有一些HTMLParser的基础教程

    由于HtmlParser自2006年以后就再没更新,目前很多人推荐使用jsoup代替它。

    # -*- coding: utf-8 -*-
    # @Author: HaonanWu
    # @Date:  2016-12-24 15:57:54
    # @Last Modified by:  HaonanWu
    # @Last Modified time: 2016-12-24 17:03:27
    from HTMLParser import HTMLParser
    import urllib2
    import json
    
    class MovieParser(HTMLParser):
      def __init__(self):
        HTMLParser.__init__(self)
        self.movies = []
    
      def handle_starttag(self, tag, attrs):
        def _attr(attrlist, attrname):
          for attr in attrlist:
            if attr[0] == attrname:
              return attr[1]
          return None
        if tag == 'li' and _attr(attrs, 'data-title') and _attr(attrs, 'data-category') == 'nowplaying':
          movie = {}
          movie['title'] = _attr(attrs, 'data-title')
          movie['score'] = _attr(attrs, 'data-score')
          movie['director'] = _attr(attrs, 'data-director')
          movie['actors'] = _attr(attrs, 'data-actors')
          self.movies.append(movie)
          print('%(title)s|%(score)s|%(director)s|%(actors)s' % movie)
    
    
    def nowplaying_movies(url):
      headers = {'User-Agent' : 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.99 Safari/537.36'}  
      req = urllib2.Request(url, headers=headers)
      s = urllib2.urlopen(req)
      parser = MovieParser()
      parser.feed(s.read())
      s.close()
      return parser.movies
    
    
    if __name__ == '__main__':
      url = 'https://movie.douban.com/nowplaying/beijing/'
      movies = nowplaying_movies(url)
    
      print('%s' % json.dumps(movies, sort_keys=True, indent=4, separators=(',', ': ')))
    

    以上全部为本篇文章的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

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