text: import sys
  import os
  import glob
  import json
  
  
  # change directory to the one with the files to be changed
  path_to_folder = '/storage/anhlt/mAP/predicted'
  #print(path_to_folder)
  os.chdir(path_to_folder)
  
  # old files (darkflow json format) will be moved to a "backup" folder
  ## create the backup dir if it doesn't exist already
  if not os.path.exists("backup"):
    os.makedirs("backup")
  
  # create VOC format files
  json_list = glob.glob('*.json')
  if len(json_list) == 0:
    print("Error: no .json files found in predicted")
    sys.exit()
  for tmp_file in json_list:
    #print(tmp_file)
    # 1. create new file (VOC format)
    with open(tmp_file.replace(".json", ".txt"), "a") as new_f:
      data = json.load(open(tmp_file))
      for obj in data:
        obj_name = obj['label']
        conf = obj['confidence']
        left = obj['topleft']['x']
        top = obj['topleft']['y']
        right = obj['bottomright']['x']
        bottom = obj['bottomright']['y']
        new_f.write(obj_name + " " + str(conf) + " " + str(left) + " " + str(top) + " " + str(right) + " " + str(bottom) + '\n')
    # 2. move old file (darkflow format) to backup
    os.rename(tmp_file, "backup/" + tmp_file)
  print("Conversion completed!")
  