抓取:无法从网络访问信息 [英] Scraping: cannot access information from web

问题描述

我正在从此网址中抓取一些信息:

I am scraping some information from this url: https://www.rockethub.com/projects/34210-lunar-lion-the-first-ever-university-led-mission-to-the-moon#description-tab

一切都很好，直到我抓到了描述.我试着试着刮，但是到目前为止我都失败了.看来我无法获得该信息.这是我的代码:

Everything was fine till I scraped the description. I tried and tried to scrape, but I failed so far. It seems like I can't reach that information. Here is my code:

html = urllib.urlopen("https://www.rockethub.com/projects/34210-lunar-lion-the-first-ever-university-led-mission-to-the-moon")
tree=BeautifulSoup(html, "lxml")
description=tree.find('div',{'id':'description_section','class':'description-section'})

你们有什么建议吗?

推荐答案

您需要提出其他请求以获取描述.这是使用 requests + BeautifulSoup :

import requests
from bs4 import BeautifulSoup

url = "https://www.rockethub.com/projects/34210-lunar-lion-the-first-ever-university-led-mission-to-the-moon/"
with requests.Session() as session:
    session.headers = {
        "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36"
    }

    # get the token
    response = session.get(url)
    soup = BeautifulSoup(response.content, "html.parser")
    token = soup.find("meta", {"name": "csrf-token"})["content"]

    # get the description
    description_url = url + "description"
    response = session.get(description_url, headers={"X-CSRF-Token": token, "X-Requested-With": "XMLHttpRequest"})

    soup = BeautifulSoup(response.content, "html.parser")
    description = soup.find('div', {'id':'description_section', 'class': 'description-section'})
    print(description.get_text(strip=True))

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