Parsing a script tag with dicts in BeautifulSoup

问题:

Working on a partial answer to this question, I came across a bs4.element.Tag that is a mess of nested dicts and lists (s, below).

Is there a way to return a list of urls contained in s without using re.find_all? Other comments regarding the structure of this tag are helpful too.

from bs4 import BeautifulSoup
import requests

link = 'https://stackoverflow.com/jobs?med=site-ui&ref=jobs-tab&sort=p'
r = requests.get(link)
soup = BeautifulSoup(r.text, 'html.parser')

s = soup.find('script', type='application/ld+json')

## the first bit of s:
# s
# Out[116]: 
# <script type="application/ld+json">
# {"@context":"http://schema.org","@type":"ItemList","numberOfItems":50,

What I've tried:

• randomly perusing through methods with tab completion on s.
• picking through the docs.

My problem is that s only has 1 attribute (type) and doesn't seem to have any child tags.

回答1:

You can use s.text to get the content of the script. It's JSON, so you can then just parse it with json.loads. From there, it's simple dictionary access:

import json

from bs4 import BeautifulSoup
import requests

link = 'https://stackoverflow.com/jobs?med=site-ui&ref=jobs-tab&sort=p'
r = requests.get(link)

soup = BeautifulSoup(r.text, 'html.parser')

s = soup.find('script', type='application/ld+json')

urls = [el['url'] for el in json.loads(s.text)['itemListElement']]

print(urls)