Windows/Python pygame.error: video system not initialized after adding Mp3 file

Question

I just added some music to my pygame game but I think the code is so messy that nothing is in the right place. As a result of this addition, I'm now getting this error:

Traceback (most recent call last): File "C:\Users\1234\AppData\Local\Programs\Python\Python36-32\My First game ERROR.py", line 31, in for event in pygame.event.get(): pygame.error: video system not initialized

Here is the code that I have written:

import pygame, sys

pygame.mixer.init(44100, -16,2,2048)

class Game(object):
def main(self, screen):

    import time
pygame.mixer.music.load('The Tonight Show Star Wars The Bee Gees Stayin     Alive Shortened.mp3')
pygame.mixer.music.play(-1, 0.0)

#class Player(pygame.sprite.Sprite):
   # def __init__(self, *groups):
   # super(Player, self.__init__(*groups)
    #self.image = pygame.image.load('Sprite-01.png')
   # self.rect = pygame.rect.Rect((320, 240), self.image.get_size())

    #def update(self):
       # key = pygame

image = pygame.image.load('Sprite-01.png')

clock = pygame.time.Clock()
# initialize variables
image_x = 0
image_y = 0

while 1:
clock.tick(30)     
for event in pygame.event.get():
    if event.type == pygame.quit():
        pygame.quit()
    if event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
        pygame.quit()

image_x += 0
key = pygame.key.get_pressed()
if key[pygame.K_LEFT]:
    image_x -= 10
if key[pygame.K_RIGHT]:
    image_x += 10
if key[pygame.K_UP]:
    image_y -= 10
if key[pygame.K_DOWN]:
    image_y += 10

screen.fill((200, 200, 200))
screen.blit(image, (image_x, image_y))
pygame.display.flip()

pygame.mixer.music.stop(52)


if __name__ == '__main__':
pygame.init()
screen = pygame.display.set_mode((640, 480))
pygame.display.set_caption('St.Patrick game')
Game().main(screen)

Please indent your code correctly, so that we can see exactly what you see in your editor. Click edit, paste your code, select it all and press Ctrl+K or the {} button to format it correctly. — skrx
Just post your code on pastebin.com or gist.github.com for the moment so that we can see how your program actually looks like (we can add it to the post for you). — skrx

skrx skrx · Accepted Answer · 2018-01-16T21:56:14

I've found the problem. You're checking if event.type == pygame.quit(): in the event loop whereas you should check if event.type == pygame.QUIT:. That means the first time the event loop is executed, you call pygame.quit() in this line and uninitialize all modules whereupon you cannot use many pygame functions anymore and the pygame.error is raised.

I think you actually want your program to look more like this version:

import pygame


pygame.mixer.init(44100, -16,2,2048)


class Player(pygame.sprite.Sprite):

    def __init__(self, *groups):
        super(Player, self.__init__(*groups))
        self.image = pygame.image.load('Sprite-01.png')
        self.rect = pygame.rect.Rect((320, 240), self.image.get_size())


class Game(object):

    def main(self, screen):
        # pygame.mixer.music.load('The Tonight Show Star Wars The Bee Gees Stayin     Alive Shortened.mp3')
        # pygame.mixer.music.play(-1, 0.0)

        # image = pygame.image.load('Sprite-01.png')
        image = pygame.Surface((30, 50))
        image.fill((0, 90, 240))

        clock = pygame.time.Clock()
        # initialize variables
        image_x = 0
        image_y = 0

        done = False
        while not done:
            clock.tick(30)
            for event in pygame.event.get():
                if event.type == pygame.QUIT:
                    done = True
                if event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
                    done = True

            key = pygame.key.get_pressed()
            if key[pygame.K_LEFT]:
                image_x -= 10
            if key[pygame.K_RIGHT]:
                image_x += 10
            if key[pygame.K_UP]:
                image_y -= 10
            if key[pygame.K_DOWN]:
                image_y += 10

            screen.fill((200, 200, 200))
            screen.blit(image, (image_x, image_y))
            pygame.display.flip()

            # pygame.mixer.music.stop(52)


if __name__ == '__main__':
    pygame.init()
    screen = pygame.display.set_mode((640, 480))
    pygame.display.set_caption('St.Patrick game')
    Game().main(screen)
    pygame.quit()

Windows/Python pygame.error: video system not initialized after adding Mp3 file

2 Answers