import pygame
import sys
pygame.init()

display = pygame.display.set_mode((300, 300))
display.fill((255, 255, 255))

pygame.draw.circle(display, (0, 0, 255), center = (150,150), radius = 50, width = 0)

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