Scraping a website with clickable content in Python

问题

I would like to scrap the content a the following website:

http://financials.morningstar.com/ratios/r.html?t=AMD

In there under Key Ratios I would like to click on "Growth" button and then scrap the data in Python.

How can I do that?

回答1:

You can solve it with requests+BeautifulSoup. There is an asynchronous GET request sent to the http://financials.morningstar.com/financials/getKeyStatPart.html endpoint which you need to simulate. The Growth table is located inside the div with id="tab-growth":

from bs4 import BeautifulSoup
import requests


url = 'http://financials.morningstar.com/ratios/r.html?t=AMD'
keystat_url = 'http://financials.morningstar.com/financials/getKeyStatPart.html'

with requests.Session() as session:
    session.headers = {'User-Agent': 'Mozilla/5.0 (Linux; U; Android 4.0.3; ko-kr; LG-L160L Build/IML74K) AppleWebkit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30'}

    # visit the target url
    session.get(url)

    params = {
        'callback': '',
        't': 'XNAS:AMD',
        'region': 'usa',
        'culture': 'en-US',
        'cur': '',
        'order': 'asc',
        '_': '1426047023943'
    }
    response = session.get(keystat_url, params=params)

    # get the HTML part from the JSON response
    soup = BeautifulSoup(response.json()['componentData'])

    # grab the data
    for row in soup.select('div#tab-growth table tr'):
        print row.text

来源：https://stackoverflow.com/questions/28978362/scraping-a-website-with-clickable-content-in-python