from bs4 import BeautifulSoup
from requests_html import HTMLSession
import re

url = ''
assert 'https://www.ruv.is/utvarp/spila' in url

with HTMLSession() as s:
    resp = s.get(url).html
    resp.render()  # Run JavaScript code on webpage

    mp3_filename = BeautifulSoup(resp.html, 'html.parser').find('h2', {'class': 't-h2 title ls-100'}).string + '.mp3'

    mp3_link, *_ = re.findall('https://ruv-rod.secure.footprint.net.*?mp3', resp.html)

    download = s.get(mp3_link)

    if download.status_code == 200:
        print(f"Downloading link {mp3_link} into {mp3_filename}")
        with open(mp3_filename, 'wb') as f:
            f.write(download.content)
    else:
        print(f"Download Failed For File {mp3_link}")