import pygame
from pygame.locals import *
import sys

pygame.init()
display = pygame.display.set_mode((300, 300))


while 1:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        pressed_keys = pygame.key.get_pressed()
        if pressed_keys[K_a] and pressed_keys[K_b]:
            print("Key A and b has been pressed")