How to retrieve CVSS Scores with Bulk CVE Lookup in NIST NVD via Python

# Inspiration: https://thecyberbyte.com/nist-bulk-cve-lookup-for-cvss-with-python/
# This source: https://pastebin.com/edit/GPRkbrut
#
# I used a Ubuntu VM (Ubuntu 20.04.3 LTS) and basic text editor (vi) at command line to interactively test
# code snippets and wrap-up with the results below. I started a weekend run batch retrieval of all NIST NVD CVSS
# scores that took over 24 hours to complete, required restarting once with a trimmed up CVE list to complete
# the approx. 20 percent remaining. (perhaps due to NIST website protections with session limit, disconnect).
#
# The ability to iterate forward and test ideas and syntax with a barebones CLI approach worked well.
#
# Python and its ecosystem are just amazing for my occasional dabbling even without a really good reason to go further
# or work "full stack" projects so far.
#
# I hope this code example helps!
#
# Orlando Stevenson
# https://www.linkedin.com/in/orlandostevenson/
#
import sys
import requests
import json
import time
from bs4 import BeautifulSoup

Cvss2id = "Cvss2CalculatorAnchor"
Cvss3id = "Cvss3NistCalculatorAnchor"

if len(sys.argv) < 2:
    print('Enter File Name (E.g. python3 bulk_cve_lookup.py cve.txt)')
    exit()


with open(sys.argv[1], "r") as cve_file:
       lines = cve_file.readlines()

       cve_list = []

       for l in lines:
                 as_list = l.split(", ")
                 cve_list.append(as_list[0].replace("\n", ""))



print("CVE-ID,","CVSS 3 Base Score,","CVSS 2 Base Score")

for CVEs in cve_list:
    response = requests.get('https://nvd.nist.gov/vuln/detail/'+str(CVEs))
    soup = BeautifulSoup(response.content, 'html.parser')

    tsC2 = str(soup.find(id=Cvss2id))
    tsC3 = str(soup.find(id=Cvss3id))


    if len(tsC2) > 10:
        fsC2 = tsC2.split(Cvss2id,1)[1]
        VsC2 = fsC2[2:fsC2.find(" ")]
    else:
        VsC2 = ""

    if len(tsC3) > 10:
        fsC3 = tsC3.split(Cvss3id,1)[1]
        VsC3 = fsC3[2:fsC3.find(" ")]
    else:
        VsC3 = ""

    print(CVEs,",",VsC3,",",VsC2)