Change the name of the sub directories such that they will be aligned with their parent directory name. Used for VGGFace 2 Dataset.

changeDirectoryName.py

import os
import os.path
from os.path import basename

rootDir = 'img'
for dirName, subdirList, fileList in os.walk(rootDir):
	#print('Found directory: %s' % dirName)
	for fname in fileList:
		base = basename(dirName)
		location=dirName+'/'+fname
		#print ('\t%s' % fname)
		print(base+'_'+fname)
		os.rename(dirName+"/"+fname, base+'_'+fname)