player_dialog.py

from tkinter import ttk
from tkinter import filedialog as fd
from tkinter.messagebox import showinfo
import os
import random


class OpenFile:
    def __init__(self, window):
        window.title('Open Music File Dialog')
        window.geometry('300x200')

        open_button = ttk.Button(window, text='Open a wav file', command=self.select_file)
        open_button.pack(expand=True)

        random_button = ttk.Button(window, text='Play a random music clip', command=self.select_random_file)
        random_button.pack(expand=True)
        # set the default wav file
        self.file = "music_clips/major-scale.wav"

    def select_file(self):
        filetypes = (('wav files', '*.wav'),)

        filename = fd.askopenfilename(
            title='Open a file',
            initialdir='/',
            filetypes=filetypes)
        showinfo(message='Please close the dialog window to open the music visualizer.')

        self.file = filename

    def select_random_file(self):
        # music_clips folder stores example music clips and music clips generated by our synthesizer
        path = 'music_clips/'
        list_files = os.listdir(path)
        random_file = random.choice(list_files)

        self.file = path + random_file
        showinfo(message='Please close the dialog window to open the music visualizer.')