Multithreaded youtube video music downloader with nice ansi progress bars

dl.py

import math, os, re, subprocess, sys, tempfile, threading

size = os.get_terminal_size()

cursorY = 0
def printLine(y, line):
    global cursorY
    if (y <= cursorY):
        sys.stdout.write('\033[F' * (cursorY - y))
    if (y > cursorY):
        sys.stdout.write('\033[E' * (y - cursorY))
    sys.stdout.write('\033[K' + line + '\n')
    cursorY = y + 1

def downloadThread(lineY):
    _, temp_file_path = tempfile.mkstemp()
    temp_file_path += '.m4a'
    with subprocess.Popen(['yt-dlp', '--newline', '-f', 'bestaudio[ext=m4a]', 'https://www.youtube.com/watch?v=LDU_Txk06tM', '-o', temp_file_path], stdout=subprocess.PIPE) as process:
        while process.poll() is None:
            line = process.stdout.readline().decode()
            procents = re.findall(r'[\d\.]+%', line)
            if len(procents) > 0:
                procent = float(procents[0][:-1]) / 100
                width = size.columns - 14
                filled = math.ceil(width * procent)
                printLine(lineY, '%2d. %6.02f%% [%s%s]' % (lineY, procent * 100, '#' * filled, ' ' * (width - filled)))

def main():
    printLine(0, '# Album downloader')
    for i in range(1, 1 + 10):
        printLine(i, 'Loading...')
        thread = threading.Thread(target=downloadThread, args=[i])
        thread.start()

if __name__ == '__main__':
    main()