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。
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# -*- 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=(',', ': ')))
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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。
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# -*- 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=(',', ': ')))
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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服务器之家。
原文链接：https://blog.csdn.net/u013007900/article/details/53861434