text: import os
  import sys
  
  input_dirname = sys.argv[1]
  t = open('thumbnails.csv', 'a+')
  
  cnt = 1
  for filename in os.listdir(input_dirname):
    with open(input_dirname + '/' + filename) as image_file:
      thumbnail = image_file.read()
      t.write(str(cnt) + ',' + str(cnt) + ',' + thumbnail + '\n')
      cnt += 1    
    image_file.close()        
  
  t.close()