python爬取热门新闻每日排行_爬取百度热点新闻排行榜

import requests

from bs4 import BeautifulSoup

def get_html(url,headers):

r = requests.get(url,headers=headers)

r.encoding = r.apparent_encoding

return r.text

def get_pages(html):

soup = BeautifulSoup(html,'html.parser')

all_topics=soup.find_all('tr')[1:]

for each_topic in all_topics:

topic_times = each_topic.find('td', class_='last') # 搜索指数

topic_rank = each_topic.find('td', class_='first') # 排名

topic_name = each_topic.find('td', class_='keyword') # 标题目

if topic_rank != None and topic_name != None and topic_times != None:

topic_rank = each_topic.find('td', class_='first').get_text().replace(' ', '').replace('\n', '')

topic_name = each_topic.find('td', class_='keyword').get_text().replace(' ', '').replace('\n', '')

topic_times = each_topic.find('td', class_='last').get_text().replace(' ', '').replace('\n', '')

# print('排名：{}，标题：{}，热度：{}'.format(topic_rank,topic_name,topic_times))

tplt = "排名：{0:^4}\t标题：{1:{3}^15}\t热度：{2:^8}"

print(tplt.format(topic_rank, topic_name, topic_times, chr(12288)))

def main():

#百度热点排行榜单链接

url = 'http://top.baidu.com/buzz?b=1&fr=20811'

headers = {'User-Agent': 'Mozilla/5.0'}

html = get_html(url, headers)

get_pages(html)

if __name__ == '__main__':

main()