Write a Python program which uses urllib to read HTML from the data files in a url and parse the data, extracting numbers and compute the sum of the numbers in the file.

Usin-Python-to-Access-Web-Data.py

import urllib.request, urllib.parse, urllib.error
from urllib.request import urlopen
from bs4 import BeautifulSoup
import ssl

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

url = 'http://py4e-data.dr-chuck.net/comments_1070212.html'
markup = urlopen(url, context=ctx).read()
soup = BeautifulSoup(markup, "html.parser")
sum = 0
for tag in soup('span'):
    p = int(tag.text)
    sum = sum + p
    print(str(p) + ' : ' + str(sum))