'Required:
nothing
Returns:
nothing
Logic:
output the line to the screen if no output file given. Otherwise, output to
the file.'

def output(self):

    if self.__output_dir:
        self.__output_to_dir_func()
    elif self.__out_file:
        self.__output_to_file_func()
    else:
        self.__output_to_standard_func()
