Error when loading audio file from zip in python - python-3.x

Question

I am making a game, and I need to load some password protected audio files from a .zip file, but I get this error:
io.UnsupportedOperation: seek
io.UnsupportedOperation: seek
io.UnsupportedOperation: seek
b'hey you did it!' #THIS IS FROM THE PROGRAM
Traceback (most recent call last):
File "C:\Python36\lib\zipfile.py", line 849, in read
data = self._read1(n)
File "C:\Python36\lib\zipfile.py", line 917, in _read1
data += self._read2(n - len(data))
File "C:\Python36\lib\zipfile.py", line 949, in _read2
data = self._fileobj.read(n)
File "C:\Python36\lib\zipfile.py", line 705, in read
self._file.seek(self._pos)
AttributeError: 'NoneType' object has no attribute 'seek'
And this is my code below:
from zipfile import ZipFile
from PIL import Image
from io import BytesIO
import pygame
from pygame.locals import *
import pyganim
import sys
pygame.init()
root = pygame.display.set_mode((320, 240), 0, 32)
pygame.display.set_caption('image load test')
#THIS IS HOW TO LOAD IMAGES (WORKS)
with ZipFile("spam.zip", 'r') as archive:
mcimg = archive.read('a.png', pwd=b'onlyforthedev')
mc = pygame.image.load(BytesIO(mcimg))
anime = pyganim.PygAnimation([(mc, 100),
(mc, 100)])
anime.play()
#THIS IS HOW TO LOAD MUSIC (DOES NOT WORK)
with ZipFile('spam.zip') as zippie:
with zippie.open('zora.mp3', pwd=b'onlyforthedev') as zora:
pygame.mixer.music.load(zora)
pygame.mixer.music.play(-1)
#THIS IS HOW TO LOAD TEXT (WORKS)
with ZipFile('spam.zip') as myzip:
with myzip.open('eggs.txt', pwd=b'onlyforthedev') as myfile:
print(myfile.read())
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
root.fill((100, 50, 50))
anime.blit(root, (100, 50))
pygame.display.update()
What can I do to load sound files without raising such an error? And what is 'seek'?

Answer 1

I also get this error on python 3.6.
I am going to guess that pygame.mixer.music.load calls the seek method on zippie, which is a ZipExtFile.
From python 3.7 ZipExtFile objects now have a seek method. I think that if you upgrade to python 3.7.2 or newer, then your error should go away.

Answer 2

Try to replace
pygame.mixer.music.load(zora)
with
with BytesIO(zora.read()) as zora_bio:
pygame.mixer.music.load(zora_bio)
This worked for me on python 3.6 with h5py.File().
I'm guessing it's the same problem as with pygame..load().
EDIT:
I now realize the above solution already exists in your code when you LOAD IMAGES:
with ZipFile("spam.zip", 'r') as archive:
mcimg = archive.read('a.png', pwd=b'onlyforthedev')
mc = pygame.image.load(BytesIO(mcimg))
So for uniformity, you could LOAD MUSIC in a similar way:
with ZipFile('spam.zip') as zippie:
zora = zippie.read('zora.mp3', pwd=b'onlyforthedev')
pygame.mixer.music.load(BytesIO(zora))