Downloading Page Source From URL List

[zunebuggy]

from urllib.request import urlopen
from pathlib import Path

with open(r'D:\Desktop\sites.txt', 'r', encoding='UTF-8') as file:
    while line := file.readline():
        myurl = line.rstrip()
        myfold = myurl[8:10]
        myfn = myurl[8:12]
        myfilen = myfn + 'txt'
        Path("D:/Desktop/" + myfold).mkdir(parents=True, exist_ok=True)
        with urlopen( myurl ) as webpage:
            content = webpage.read().decode()
            with open("D:/Desktop/" + myfold + "/" + myfilen , "w" ) as output:
                output.write( content )

I have a list of urls named sites.txt

Each URL has the same length.

I am trying to loop through each site and
1. Take part of the url name and create a folder on the Desktop if it doesn't exist.
2. Take part of the url and create a filename.
3. Save the page source of each url as a text file within the corresponding folder

This seems to run in Python 3 without any errors, but if it's creating the txt files, they are somewhere else. It is not even creating the folders.

Sorry I am new to Python.

Thank you.