python script that keep @2x file with the name of low definition file

delete_at_2x_resource.py

#!/usr/bin/env python

import os

image_file_types = ['.jpg', '.png']

def is_image_file(file_name):
	fileName, fileExt = os.path.splitext(file_name)

	for type in image_file_types:
		if type.lower() == fileExt.lower():
			return True
	
	return False

def is_at_2x_file(file_name):
	fileName, fileExt = os.path.splitext(file_name)
	return fileName.endswith("@2x")
	
def process_and_remove_at_2x_image():
	current_dir = os.getcwd()

	dir_list = []
	file_list = []

	for root, dirs, files in os.walk(current_dir):
		for f in files:
			if (is_image_file(f)):
				file_list.append(os.path.join(root, f))

	for f in file_list:
		fileName, fileExt = os.path.splitext(f)
		if is_at_2x_file(fileName):

			normal_fileName = fileName[:-3]
			normal_file = normal_fileName + fileExt	

			if (os.path.exists(normal_file)):
				os.rename(f, normal_file)

if "__main__" == __name__:
	process_and_remove_at_2x_image()