def __init__(self, filename):
        """
        :param c: the filename to store the DATA_FILE in
        """
        self.__filename = filename
        data = data_file.load(filename) if os.path.exists(filename) else {}
        super().__init__(data)
def __init__ ( self , filename ) : self . __filename = filename data = data_file . load ( filename ) if os . path . exists ( filename ) else { } super ( ) . __init__ ( data )
:param c: the filename to store the DATA_FILE in