开发一个豆瓣图书搜索系统用Python编写

 import requests

    
 import time
    
 from bs4 import BeautifulSoup
    
 import re
    
  
    
 book=[]
    
 def search(url):
    
     try:
    
     #url='https://book.douban.com/tag/%E6%97%A5%E6%9C%AC%E6%96%87%E5%AD%A6'
    
     r=requests.get(url)
    
     html=r.text
    
     return html
    
     except:
    
     search(url)
    
  
    
 def parse_page(url,k):
    
     html=search(url)
    
     pattern1=re.compile('<div class="pub">(.*?)</div>',re.S)
    
     book_info=re.findall(pattern1,html)
    
     pattern2=re.compile('title="(.*?)"',re.S)
    
     book_name=re.