Check md5 hash of batch downloaded archive.org files

archiveorg_checkhash.py

import os
import re
import sys
import requests
from hashlib import md5
from xml.etree.ElementTree import fromstring

if len(sys.argv) < 2:
    print(f"Usage: {sys.executable} {sys.argv[0]} xml_url")

url = sys.argv[1]

dllist_match = re.fullmatch(
    r"http(?:s)?://(?:www\.)?archive\.org/download/([a-zA-Z-]+?)", url
)

if dllist_match:
    name = dllist_match.group(1)
    url = f"{url}/{name}_files.xml"

r = requests.get(url)
xml = fromstring(r.text)

ls = os.listdir()

hashmap = {
    file.attrib['name']: file.find("md5").text for file in xml.findall("file")
    if file.attrib['name'] in ls
}

failed = []

for name, hashval in hashmap.items():
    print(name, end="... ")
    if hashval == md5(open(name, "rb").read()).hexdigest():
        print("OK!")
    else:
        print("FAILED")
        failed.append(name)

print("\n  -================================-  \n")

if failed:
    print("Files with mismatching hashes:", *failed, sep="\n")
else:
    print("No hash mismatches!")