import pygame, sys          # |
from pygame.locals import * # }-- Imports
pygame.init() #initiation of the window
DISPLAYSURF = pygame.display.set_mode((400, 300)) # resolution
pygame.display.set_caption('Hello world!') # window name
while True: # game loop
    for event in pygame.event.get():
        if event.type == QUIT:  # |
            pygame.quit()       # }-- close windowed application code
            sys.exit()          # |
    pygame.display.update() # Updating the application