Euro Truck Simulator 2 music info display

# ETS2 music player info display program
# Requires psutil and music-tag external library
# Tested on Windows 11 x64, Python 3.9.9, psutil==5.9.8, music-tag==0.4.3

# Code by yclee126


import psutil
import os
import time
import music_tag
from pathlib import Path


# symlink reader
# https://github.com/python/cpython/blob/master/Tools/scripts/lll.py
def lll(dirname, sym_dirs):
    for name in os.listdir(dirname):
        if name not in (os.curdir, os.pardir):
            full = os.path.join(dirname, name)
            if os.path.isdir(full) and not os.path.islink(full):
                lll(full, sym_dirs)
            elif os.path.islink(full):
                symlink_dest = os.readlink(full)
                # remove \\?\ prefix in Windows
                if symlink_dest[:4] == '\\\\?\\':
                    symlink_dest = symlink_dest[4:]
                sym_dirs.append(symlink_dest)

def get_pid_by_name(process_name):
    for process in psutil.process_iter(['pid', 'name']):
        if process.info['name'] == process_name:
            return process.info['pid']
    return None

if __name__ == '__main__':
    # get all music directories including shallow symlinks
    music_path = os.path.expanduser('~/Documents/Euro Truck Simulator 2/music')
    music_path = os.path.normpath(music_path) # normalize between / or \

    music_paths = [music_path]
    lll(music_path, music_paths)

    print('Music dirs:', music_paths)

    # get eurotruck process
    process_name = "eurotrucks2.exe"
    pid = get_pid_by_name(process_name)
    if pid is None:
        print('Process not found')
        exit()

    # monitor eurotruck process
    try:
        process = psutil.Process(pid)
        print(f"The PID of the process '{process_name}' is: {pid}")

        prev_file_path = None
        while True:
            new_file_path = None

            # monitor opened files
            files = process.open_files()
            for file in files:
                for music_path in music_paths:
                    if music_path in file.path:
                        if file.path != prev_file_path:
                            new_file_path = file.path
                            prev_file_path = file.path
                        break

            # print music info
            if new_file_path is not None:
                tag = music_tag.load_file(new_file_path)
                length = int(tag['#length'])
                minutes = int(length / 60)
                seconds = int(length % 60)

                print((f"\n\n\n\n\n\n"
                       f"Title : {tag['title']}\n"
                       f"Artist: {tag['artist']}\n"
                       f"Album : {tag['album']}\n"
                       f"Length: {minutes:02d}:{seconds:02d}\n"
                       f"------:\n"
                       f"File  : {Path(new_file_path).name}\n"))

            time.sleep(1)

    except psutil.NoSuchProcess:
        print('Process terminated')
        exit()

    except:
        raise