def validFile(file):
  fup = file.upper()
  good_extensions = ['.JPG', '.TIF', '.WAV']
  filename, file_extension = os.path.splitext(file)
  return os.path.isfile(file) and file_extension in good_extensions

def dateAndFilename(file):
  try:
      date_formatted = pulling_metadata_date(file)
  except KeyError:
      print('Images Do not Contain Date Information in their METADATA')
      date_formatted = "NO-DATE
  return date_formatted, file

def File_Date_Organiser(absolute_path):
    os.chdir(absolute_path)
    print(os.listdir('.'), os.path.abspath(os.curdir))

    valid_files = filter(validFile, os.listdir)
    dates_and_filenames = map(dateAndFilename, valid_files)
    unique_dates = set([d for d, _ in dates_and_filenames])
    formatted_dates = ["{}-{}".format(d[:4], d[5:7]) for d in unique_dates]

    for date in formatted_dates:
      if not os.path.exists(date):
          os.mkdir(date)

    for number, (date, fn) in enumerate(dates_and_filenames.items()):
        shutil.move(file, '{}'.format(folder_name))
        print('Complete')