Ch12.Asnt12.1.py

# To run this, download the BeautifulSoup zip file
# http://www.py4e.com/code3/bs4.zip
# and unzip it in the same directory as this file

from urllib.request import urlopen
from bs4 import BeautifulSoup
import ssl
import re

# Ignore SSL certificate errors
ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE

url = input('Enter url here - ')
html = urlopen(url, context=ctx).read()
soup = BeautifulSoup(html, "html.parser")

# Retrieve all of the anchor tags
tags = soup('span')
sum=0
for tag in tags:
    tag=str(tag)
    tag=tag.rstrip()
    y=re.findall('[0-9]+',tag)
    x=y[0]
    x=int(x)
    sum=sum+x
print(sum)