python - 评论抓取表单 tripadvisor

Question

我是 python3 网络抓取的新手。我想抓取迪拜所有酒店的评论，但问题是我只能抓取我在 url 中描述的酒店评论。谁能告诉我如何在不隐式提供每家酒店的网址的情况下获得所有酒店评论？

import requests
from bs4 import BeautifulSoup


importurl = 'https://www.tripadvisor.com/Hotel_Review-g295424-d302778-Reviews-Roda_Al_Bustan_Dubai_Airport-Dubai_Emirate_of_Dubai.html'
r = requests.get(importurl)
soup = BeautifulSoup(r.content, "lxml")
 resultsoup = soup.find_all("p", {"class" : "partial_entry"})
#save the reviews to a test text file locally
for review in resultsoup:
review_list = review.get_text()
print(review_list)
with open('testreview.txt', 'w') as fid: 
    for review in resultsoup:
        review_list = review.get_text()
        fid.write(review_list)

Answer 1

你应该找到所有酒店的索引页面，将所有链接放入一个列表中，然后循环 url 列表以获取评论。

import bs4, requests
index_pages = ('http://www.tripadvisor.cn/Hotels-g295424-oa{}-Dubai_Emirate_of_Dubai-Hotels.html#ACCOM_OVERVIEW'.format(i) for i in range(0, 540, 30))
urls = []
with requests.session() as s:
    for index in index_pages:
        r = s.get(index)
        soup = bs4.BeautifulSoup(r.text, 'lxml')
        url_list = [i.get('href') for i in soup.select('.property_title')]
        urls.append(url_list)

输出:

len(urls): 540