Simple HTML parser using Cookies to handle the login

import os, http.cookiejar, urllib.request
import re,csv
from glob import glob

f = open("downloadProducts.sh",'w', encoding='utf-8')

for i in range(1,57):
    url = "https://b2b.example.com/page/"+str(i)+"/?s=parameterHere" # this is from a wordpress site

    cj = http.cookiejar.MozillaCookieJar()
    cj.load(os.path.join(os.path.expanduser("~"), ".netscape", "cookies.txt")) # path from local cookie file (downloaded from Chrome)
    opener = urllib.request.build_opener(urllib.request.HTTPCookieProcessor(cj))
    r = opener.open(url)

    for lines in r.readlines():
        if '<h2 class="entry-title">' in str(lines): # in case of encoding error (since site is using Greek language) use decode cp1252
            flag = 1
            match = re.search(r'href=[\'"]?([^\'" >]+)', str(lines))
            if match:
                productURL = match.group(0).replace('href="',"")
                array = productURL.split('/')
                size = len(array)
                sku = array[size-2].split('-')[len(array[size-2].split('-'))-1] # format of product URL looks like this https://b2b.example.com/product/necklace-base-metal-sku/
                f.write('curl --cookie cookies.txt "' + productURL + '" -o ' + sku +'.html\n') # https://stackoverflow.com/questions/55608561/python3-issue-using-cookiejar-and-urllib-request since there is no responce from there, the other method is to use curl