How to play base64-encoded sound in Python [duplicate]

I want to play a base64-encoded sound in Python, I've tried using Pygame.mixer but all I get is a hiss of white noise.

This is an example of my code:

import pygame

coinflip = b'data:audio/ogg;base64,T2dnUwACAAAAAAAAAACYZ...'  # Truncated for brevity
flip  = pygame.mixer.Sound(coinflip)
ch = flip.play()
while ch.get_busy():
    pygame.time.wait(100)

The pygame mixer works well if I import a wav/mp3/ogg file, but I want to write a compact self-contained program that doesn't need external files, so I'm trying to embed a base64 encoded version of the sound in the Python code.

NB: The solution doesn't need to be using pygame, but it would be preferable since I'm already using it elsewhere in the program.