rename_files_in_folder.py

# Python program to rename all file
# names in your directory
import os

os.chdir(r'C:\Users\oolaonipekun\Desktop\Car_damage_detection\data\validation\whole')
print(os.getcwd())
COUNT = 1

# Function to increment count
# to make the files sorted.
def increment():
	global COUNT
	COUNT = COUNT + 1


for f in os.listdir():
	f_name, f_ext = os.path.splitext(f)
	f_name = "valid_whole" + str(COUNT)
	increment()

	new_name = '{} {}'.format(f_name, f_ext)
	os.rename(f, new_name)