import pygame, sys, time
from pygame.locals import *

pygame.init()

pygame.display.init()
screen=pygame.display.set_mode ((800,600))
clock=pygame.time.Clock()
image = 'image.png'

Image = pygame.image.load(image).convert_alpha()

x,y=0,0
movex, movey,=0,0

while True:

    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()

        if event.type == KEYDOWN:
            if event.key==K_LEFT:
                movex=-1
            elif event.key==K_RIGHT:
                movex=1
            elif event.key==K_UP:
                movey=-1
            elif event.key==K_DOWN:
                movey=1

        if event.type == KEYUP:
            if event.key==K_LEFT:
                movex=0
            elif event.key==K_RIGHT:
                movex=0
            elif event.key==K_UP:
                movey=0
            elif event.key==K_DOWN:
                movey=0


    x = x+movex
    y = y+movey

    screen.blit(Image,(x,y))

    pygame.display.update()