抓去豆瓣top250的图书介绍

pcgenie

需要爬取的top250图书的名称、评分、链接、以及一句话评价，
https://book.douban.com/top250
但一句话评价不是所有图书都有，特别是第十页的图书，这样遇到空的Python就会停止并报错，请问如何解决？
已经写的部分，抓了名称，评分，链接

import urllib.request as urlrequest
from bs4 import BeautifulSoup

for i in range(0,251,25):
    url_visit = "https://book.douban.com/top250?start={}".format(i)
    crawl_content = urlrequest.urlopen(url_visit).read()
    soup = BeautifulSoup(crawl_content,"html.parser")
    book_list = soup.find_all(class_="item")
    for book in book_list:
        rating = book.find(class_="rating_nums").get_text()
        
        link = book.find(class_="nbg")['href']
        title = book.find(class_="pl2")
        title_name = title.find("a")['title']
        with open("book250.xls","a") as outputfile:
            outputfile.write("{}\t{}\t{}\n".format(title_name,rating,link))

pcgenie

自己解决

import urllib.request as urlrequest
from bs4 import BeautifulSoup

for i in range(0,251,25):
    url_visit = "https://book.douban.com/top250?start={}".format(i)
    crawl_content = urlrequest.urlopen(url_visit).read()
    soup = BeautifulSoup(crawl_content,"html.parser")
    book_list = soup.find_all(class_="item")
    for book in book_list:
        
        try:
            abstract=book.find(class_='inq').get_text()
        except AttributeError:
            abstract="None"

        rating = book.find(class_="rating_nums").get_text()
        link = book.find(class_="nbg")['href']
        title = book.find(class_="pl2")
        title_name = title.find("a")['title']

        with open("book250.xls","a") as outputfile:
            outputfile.write("{}\t{}\t{}\t{}\n".format(title_name,rating,abstract,link))

罗同学

楼主要把谁“抓去”豆瓣