Changing the files in a folder from JPG to JPEG

How can I permanently change the files in a folder from JPG to JPEG using a script.

Here is my code, but it’s not producing any results:

for file in os.listdir(path):
    if file.endswith(".JPG"):
      base = os.path.splitext(file)[0]
      os.rename(file, base + '.jpeg')

>Solution :

you can using opencv for this task:
(Note: in this code you must set ‘/’ at the end of path variable)

import os
import cv2

path = "./images/"
for file in os.listdir(path):
    if file.endswith(".jpg") or file.endswith(".JPG"):
        img = cv2.imread(path+str(file))
        cv2.imwrite(path+file[0:-4]+".jpeg", img)
        os.remove(path+file)