Searching in baidu using BeautifulSoup in Python3.3

青旅半醒 2022-07-24 11:02 159阅读 0赞

# -*- coding: utf-8 -*- 
    import pandas as pd
    from bs4 import BeautifulSoup
    import urllib.request as req
    import urllib
    import re
    import json
    import datetime
    
    
    class BaiduCrawler:
        link = 'http://www.baidu.com/s?ie=utf-8&f=8&rsv_bp=1&rsv_idx=1&tn=baidulocal&wd='
        def __init__(self,inter_page,target,inter_days):
            self.inter_page = inter_page
            self.inter_days = datetime.timedelta(days=int(inter_days))
            self.target = target
            '''
            #PROXY
            proxy = req.ProxyHandler({'http': '127.0.0.1:3128'})
            opener = req.build_opener(proxy)
            req.install_opener(opener)
            '''
        def get_threads(self,soup):
            text = soup.find_all('td',{'class':'f'})
            return text
        
        def baidu_search(self,page,game_name):
            pn = page*10
            print('pn is ',pn)
            url = self.link + game_name + '&pn='+str(pn)
            print('url is ' ,url)
            conn = req.urlopen(url)
            text = conn.read().decode()
            soup = BeautifulSoup(text,'html.parser')
            return soup
        
        def crawler(self):
            today = datetime.date.today()
            
            name = urllib.parse.quote(self.target)
            dfs = []
            tmp_list = []
            for page in range(self.inter_page):
                soup = self.baidu_search(page,name)
                threads = self.get_threads(soup)
                for thread in threads:
                    up_date = str(thread.select('font')[-1].text.split('\xa0')[-2])
                    dt = datetime.datetime.strptime(up_date,'%Y-%m-%d')
                    dt = datetime.date(dt.year,dt.month,dt.day)
                    if(today-dt <= self.inter_days):
                        tmp_list.append((thread.select('a')[0].text,thread.select('a')[0]['href']))
            df = pd.DataFrame.from_dict(tmp_list)
            df.columns = ['title','url']
            dfs.append(df) 
            final_df = pd.concat(dfs) 
            print('Saving file ...')
            df.to_csv(path_or_buf = 'd:\\tmp\\baidu.csv',encoding='utf-8') 
            print('It is OK!')  
      
    def baidu():
        page = 1 #how many page do you need.
        search = 'xxxx' # something you want to search 
        days = 30 # in how many days
        baidu = BaiduCrawler(page,search,days)
        baidu.crawler()
        
    if __name__ == '__main__':
        baidu()