股票数据爬虫

 老虎社区

 'https://www.laohu8.com/stock/'

百度股票不行了

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import requests
import re
from bs4 import  BeautifulSoup
import collections
import traceback
def getHtmlText(url):
    try:
      kv = {'user-agent':'Mozilla/5.0'}
      r = requests.get(url,headers = kv)
      # print(r.status_code)
      r.raise_for_status()
      #print(r.apparent_encoding) GB2312  
      #r.encoding = r.apparent_encoding() GB2312 无法获取信息
      r.encoding = 'utf-8'#这步必须要，可以省时。因为获取r.apparent_encoding解析文本内容需要很长的时间
      return r.text
    except:
      return ""


def getstocklist(list,stock_url):
     html = getHtmlText(stock_url)
     soup = BeautifulSoup(html,'html.parser')
     a = soup.find_all('a')
     for  i in a:
         try:
            href = i.attrs['href']
            list.append(re.findall(r"\d{6}",href)[0]) #查找股票代码
         except:
               continue
     print(len(list))    

def getstockinfo(list,stock_url,path):
    cnt  = 0
    for stock in list:
        url = stock_url+stock
        html = getHtmlText(url)
        try:
            if html == '':
                 continue
            infodict = collections.OrderedDict()#为了后面按照插入顺序写入文件
            soup = BeautifulSoup(html,'html.parser')
            stock_name =  soup.find_all('h1',attrs = {'class':'name'})[0]

            name = stock_name.text.split()[0]
            infodict['股票名称']  = name

            stockinfo = soup.find('div',attrs = {'class':'detail-data'})
            key_list = stockinfo.find_all('dt')
            value_list = stockinfo.find_all('dd')
            for  i in  range(len(key_list)):
                key = key_list[i].text
                value = value_list[i].text
                infodict[key] = value

            with open(path,'a',encoding='utf-8') as f:#'a':新的内容会加到已有内容的后面
                f.write(str(infodict)+'\n')
                cnt = cnt+1
                print('\r当前进度:{:.2f}%'.format(cnt*100/len(list)),end='')#\r 表示将光标的位置回退到本行的开头位置
        except:
               cnt  = cnt  +1
               print('\r当前进度:{:.2f}%'.format(cnt*100/len(list)),end='')
               continue

def main():
     stock_list_url = 'http://quote.eastmoney.com/stock_list.html'
     stock_info_url = 'https://www.laohu8.com/stock/'
     output_file = 'laohu_stock.txt'
     list = []
     getstocklist(list,stock_list_url)
     getstockinfo(list,stock_info_url,output_file)

main()

getstockinfo():

getstockinfo

 laohu_stock.txt  部分截图

注意：

        可以看到爬取到的信息里没有最高最低信息，这是因为我直接爬取的网页源代码，源代码里没有显示出最高最低信息，但是正常网页显示了最高最低，具体原因还在了解。