import pygame
import sys
from pygame.locals import *

pygame.init()
DISPLAYSURF = pygame.display.set_mode((400,300))
pygame.display.set_caption('dgt1')
while True: # main game loop
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
            pygame.display.update()

            pressed_keys = pygame.key.get_pressed()

            if pressed_keys[K_a]:
                print("key a pressed")