How to crawl for specific links inside a website?

问题

I have sucessfully crawled the Headline and the Links.

I would like to replace the Summary tab with The Main Article from the link (Since the Title and Summary are same anyways. )

link = "https://www.vanglaini.org" + article.a['href']

(eg. https://www.vanglaini.org/tualchhung/103834)

Please help me modify my code.

Below is my code.

import pandas as pd
import requests
from bs4 import BeautifulSoup

source = requests.get('https://www.vanglaini.org/').text
soup = BeautifulSoup(source, 'lxml')

list_with_headlines = []
list_with_summaries = []
list_with_links = []

for article in soup.find_all('article'):
    if article.a is None:
        continue
    headline = article.a.text.strip()
    summary = article.p.text.strip()
    link = "https://www.vanglaini.org" + article.a['href']
    list_with_headlines.append(headline)
    list_with_summaries.append(summary)
    list_with_links.append(link)

news_csv = pd.DataFrame({
    'Headline': list_with_headlines,
    'Summary': list_with_summaries,
    'Link' : list_with_links,
})

print(news_csv)
news_csv.to_csv('test.csv')

回答1:

Just do request again inside for loop and get the tag text.

import pandas as pd
import requests
from bs4 import BeautifulSoup

source = requests.get('https://www.vanglaini.org/').text
soup = BeautifulSoup(source, 'lxml')

list_with_headlines = []
list_with_summaries = []
list_with_links = []

for article in soup.find_all('article'):
    if article.a is None:
        continue
    headline = article.a.text.strip()
    link = "https://www.vanglaini.org" + article.a['href']
    list_with_headlines.append(headline)
    list_with_links.append(link)
    soup = BeautifulSoup(requests.get(link).text, 'lxml')
    list_with_summaries.append(soup.select_one(".pagesContent").text)

news_csv = pd.DataFrame({
    'Headline': list_with_headlines,
    'Summary': list_with_summaries,
    'Link' : list_with_links,
})

print(news_csv)
news_csv.to_csv('test.csv')

Csv will be like this.

来源：https://stackoverflow.com/questions/58937799/how-to-crawl-for-specific-links-inside-a-website

标签

python

pandas

beautifulsoup