Loading an audio file using file dialog and playing it with pygame - python-3.x

Question

I'm trying to load a file using the tkinter GUI file dialog and then pass this to another function that will play it using pygame (though I'm open to using another package if it's easier), how would I go about doing this? Below is what a code sample that is representative of what I have so far:
import tkinter, pygame
from tkinter import *
from pygame import *
from tkinter import filedialog
root = Tk()
def open_masker():
global fileName
fileName = filedialog.askopenfilename(filetypes=(("Audio Files", ".wav .ogg"), ("All Files", "*.*")))
masker_track = fileName
if fileName =="":
fileName = None
else:
fh = open(fileName, "r")
fh.close()
def masker_screen():
global m_screen
m_screen = Toplevel(root)
m_screen.geometry('600x600')
m_screen.transient(root)
m_label = Label(m_screen, text = "Playing New Masker Noise")
m_label.pack(anchor = CENTER)
noise = pygame.mixer.Sound(file = fileName)
noise.play(0, 5000)
noise.stop()
b1 = Button(root, text = 'open file',command = open_masker).pack(anchor=CENTER)
b2 = Button(root, text = 'continue', command = masker_screen).pack(anchor = E)
root.mainloop()
Which just returns the error that pygame couldn't load the file. Is this because it's being loaded in as a string into the fileName variable? If so, how do I change that and access the actual file?
Thanks!

Answer 1

Ok, I have fixed some problems you had, and this is my complete working solution (see the comments in the code for explanations):
import pygame
from tkinter import * # not advisable to import everything with *
from tkinter import filedialog
pygame.mixer.init() # initializing the mixer
root = Tk()
audio_file_name = ''
def open_masker():
global audio_file_name
audio_file_name = filedialog.askopenfilename(filetypes=(("Audio Files", ".wav .ogg"), ("All Files", "*.*")))
def masker_screen():
# we will also use the audio_file_name global variable
global m_screen, audio_file_name
m_screen = Toplevel(root)
m_screen.geometry('600x600')
m_screen.transient(root)
m_label = Label(m_screen, text = "Playing New Masker Noise")
m_label.pack(anchor = CENTER)
if audio_file_name: # play sound if just not an empty string
noise = pygame.mixer.Sound(audio_file_name)
noise.play(0, 5000)
b1 = Button(root, text = 'open file',command = open_masker)
# does not make sense to call pack directly
# and stored the result in a variable, which would be None
b1.pack(anchor=CENTER)
Button(root, text = 'continue', command = masker_screen).pack(anchor = E)
root.mainloop()
See documentation for more information on how to use correctly the mixer module.