Timed Window closure in pygame

Question

Solved, Missing GameExit Definition. Credit LPK.

I have been working on a game for 3 days so far and it has gone well so far. But I have a issue, any time I open my program now it opens but it closes immediately after. At first I thought it was the death function something was triggering it and cause it to close but after commenting out the code, I found that it was not the problem. I don't know what's wrong.

#!/usr/bin/python3
import pygame
#import file colors.py
pygame.init()

white = (255,255,255)
#game display
display_width = 800
display_height = 600

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Sound Soul')
clock = pygame.time.Clock()

#CharacterImg = pygame.image.load(' ')

#functions

#start of game loop
def game_loop():
    x = (display_width * 0.45)

y = (display_height * 0.8)

def Character_Display(x,y):
    gameDisplay.blit(CharacterImg,(x.y))

x_move = 0
y_move = 0

dead = False
if dead == False:
    gameExit = False
elif gameExit == True:
    pygame.quit()
    quit()
#logic Loop
while not dead:

    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            dead = True
        #Mechanics
        if event.type == pygame.KEYUP:
            if event.key == pygame.KEYUP:
                y_move = 5
            elif event.key == pygame.KEYDOWN:
                y_move = -5

        if event.type == pygame.KEYDOWN:
             if event.key == pygame.KEYUP or pygame.KEYDOWN:
                 y_move = 0

        if event.type == pygame.K_LEFT:
            if event.key == pygame.K_LEFT:
                x_move = 5
            elif event.key == pygame.K_RIGHT:
                x_move = -5

        if event.type == pygame.K_RIGHT:
             if event.key == pygame.K_LEFT or pygame.K_RIGHT:
                 x_move = 0
    x += x_move
    y += y_move

    gameDisplay.fill(white)
    #Character-Display(x,y)
    #Frames Per Second
    pygame.display.update()
    clock.tick(30)

pygame.quit()
quit()