Progressbar + скачивание файла с url
Скачать файл с сайта `url` показывая прогрессбар

with urllib.request.urlopen(utl) as Response:\n
\tLength = Response.getheader('content-length')\n
\tBlockSize = 1000000  # default value\n

\tif Length:\t
\t\tLength = int(Length)\n
\t\tBlockSize = max(4096, Length // 20)\n

\tprint("UrlLib len, blocksize: ", Length, BlockSize)\n

\tBufferAll = io.BytesIO()\n
\tSize = 0\n
        while True:
            BufferNow = Response.read(BlockSize)
            if not BufferNow:
                break
            BufferAll.write(BufferNow)
            Size += len(BufferNow)
            if Length:
                Percent = int((Size / Length)*100)
                print('download: {Percent}% {Url}')

        print("Buffer All len:", len(BufferAll.getvalue()))