python利用re,bs4,requests模块获取股票数据
今天闲来无聊无意间看到了百度股票,就想着用python爬一下数据,于是就找到了东方财经网,结合这两个网站,写了一个小爬虫,数据保存在文件中,比较简单的示例,就当做用来练习正则表达式和BeautifulSoupl了。
首先页面分析,打开东方财经网股票列表页,
和百度股票详情页 ,右键查看网页源代码,
网址后面的代码就是股票代码,所以打算先获取股票代码,然后获取详情,废话少说,直接上代码吧:
import re import requests from bs4 import BeautifulSoup #获取html def getHtml(url): try: req=requests.get(url) req.raise_for_status() req.encoding=req.apparent_encoding return req.text except : print('getHtml失败') #获取股票代码 def getStockList(lst,stockUrl): html=getHtml(stockUrl) soup=BeautifulSoup(html,'html.parser') a=soup.find_all('a') for i in a: try: href=i.attrs['href'] lst.append(re.findall(r'[s][hz]\d{6}',href)[0]) except: continue #获取股票详情 def getStockInfo(lst,stockUrl,fpath): count=0 for stock in lst: url=stockUrl+stock+'.html' html=getHtml(url) try: if html=='': continue infoDict={} soup=BeautifulSoup(html,'html.parser') stockInfo=soup.find('div',attrs={'class':'stock-bets'}) name=stockInfo.find_all(attrs={'class':'bets-name'})[0] infoDict.update({'股票名称':name.text.split()[0]}) keyList=stockInfo.find_all('dt') valueList=stockInfo.find_all('dd') for i in range(len(keyList)): key=keyList[i].text val=valueList[i].text infoDict[key]=val with open(fpath,'a',encoding='utf-8') as f: f.write(str(infoDict)+'\n') count+=1 print('\r当前速度:{:.2f}%'.format(count*100/len(lst)),end='') except: count+=1 print('\r当前速度e:{:.2f}%'.format(count*100/len(lst)),end='') continue def main(): stockListUrl='http://quote.eastmoney.com/stocklist.html' stockInfotUrl='https://gupiao.baidu.com/stock/' outPutFile='D:\python\shuju\stockInfo.txt' slist=[] getStockList(slist,stockListUrl) getStockInfo(slist,stockInfotUrl,outPutFile) main()
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