Download-RealVNC.py

#!/usr/bin/env python3
import urllib.request
import hashlib
import os
import shutil
from bs4 import BeautifulSoup
import sys
import time

def dlProgress(count, block_size, total_size):
    global start_time
    if count == 0:
        start_time = time.time()
        return
    duration = time.time() - start_time
    progress_size = int(count * block_size)
    speed = int(progress_size / (1024 * duration))
    percent = int(count * block_size * 100 / total_size)
    sys.stdout.write("\r...%d%%, %d MB, %d KB/s, %d seconds passed" %
                    (percent, progress_size / (1024 * 1024), speed, duration))
    sys.stdout.flush()


page = urllib.request.urlopen('https://www.realvnc.com/de/connect/download/viewer/linux/')
suppe = BeautifulSoup(page, "html5lib")
downloadlinks = suppe.findAll("div", attrs={"class": "download-link"})

for link in downloadlinks:
    if (link.find("span", attrs={"class": "download-link-type"}).text == "(DEB x64)"):
        url = "https://www.realvnc.com" + link.find("a")["href"]
        filename = url.split('/')[-1]
        filetype = link.find("span", attrs={"class": "download-link-type"}).text
        checksum = link.find("p", attrs={"class": "checksum"}).text
        checksum = checksum.replace("SHA-256: ", "")

print("RealVNC: " + filename)

match = False
while not match:
    urllib.request.urlretrieve(url, filename, reporthook=dlProgress)
    downloadedHash = hashlib.sha256(open(filename, 'rb').read()).hexdigest()
    print("\nsha256sum not matching")
    if (downloadedHash == checksum):
        match = True

print("sha256sum matched")