CardScoreDataServer/Test/test01.py

import os
from pathlib import Path

if __name__ == '__main__':
    data_dir = r"C:\Code\ML\Image\Card\tesmp"
    data_dir = Path(data_dir)

    for filename in data_dir.iterdir():
        split_text = "f"
        if split_text in filename.name:
            img_nun = int(filename.stem.split(split_text)[1])
            new_name = str(img_nun) + "_front_ring" + ".jpg"
            new_path = data_dir / new_name
            filename.rename(new_path)

    print('end')