Error: video system not initialized when using pygame

Question

I keep having the error whenever I try to run this code:

import pygame
pygame.init()
print(pygame.display.Info())

WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("First Game")

def main():
    run = True
    while run:
        for event in pygame.event.get():
            if event.type == pygame.quit:
                run = False

pygame.quit()

if __name__ == "__main__":
    main()

I've tried adding pygame.init() but it didn't help.

Answer 1

You have a couple of problems here. The immediate cause of the error is that your call to pygame.quit() isn't inside the main function, so it gets called immediately when the program starts. You need to fix that:

import pygame
pygame.init()
print(pygame.display.Info())

WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("First Game")
def main():
    run = True
    while run:
        for event in pygame.event.get():
            if event.type == pygame.quit:
                run = False
    pygame.quit()

if __name__ == "__main__":
    main()

This will allow your program to run...but it's never going to quit. You're comparing event.type == pygame.quit, but pygame.quit is a function; this comparison will always be False. You need to compare it to pygame.QUIT, which is an integer value that will match event.type as expected:

import pygame
pygame.init()
print(pygame.display.Info())

WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("First Game")

def main():
    run = True
    while run:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
    pygame.quit()

if __name__ == "__main__":
    main()