Tkinter GUI Application Development Blueprints, Second Edition - Second Edition

Playing complete patterns

Now our program has the ability to play any sound. But we don't just need to play a single sound. We need to play a pattern. Let's define a method called play_pattern, which reads our internal data structure and plays files accordingly (see code 3.06.py):

import time    def play_pattern(self):        self.now_playing = True        while self.now_playing:            play_list = self.get_is_button_clicked_list()            num_columns = len(play_list[0])            for column_index in range(num_columns):                column_to_play = self.get_column_from_matrix(                      play_list, column_index)                for i, item in enumerate(column_to_play):                    if item:                        sound_filename = self.get_drum_file_path(i)                        self.play_sound(sound_filename)                time.sleep(self.time_to_play_each_column()) if not self.now_playing: ...