Функция "Умного переименования" файлов

smart_rename.py

def smart_rename(file):
    # renames a file by adding a numeric index to it
    # increments the index if the directory already has files with the index
    regex = r'(.+)_\((\d+)\)\.(.+)' # filename_(0).ext
    make_filename = lambda p: p[0] + f"_({p[1]})." + p[2]
    filename, path = os.path.basename(file), os.path.dirname(file)
    match = match_regex(regex, filename)
    parts = list(match.groups())[::2] if match else filename.split('.')
    parts.insert(1, int(match.group(2)) if match else 0)
    new_path = os.path.join(path, make_filename(parts))
    while os.path.exists(new_path):
        parts[1] += 1
        new_path = os.path.join(path, make_filename(parts))
    return new_path