OpenCV VideoCapture running on PyGame

opencv_video_to_pygame.py

import pygame
from pygame.locals import *
import cv2
import numpy as np
import sys

camera = cv2.VideoCapture(0)
pygame.init()
pygame.display.set_caption("OpenCV camera stream on Pygame")
screen = pygame.display.set_mode([1280,720])

try:
    while True:

        ret, frame = camera.read()
		
        screen.fill([0,0,0])
        frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
        frame = np.rot90(frame)
        frame = pygame.surfarray.make_surface(frame)
        screen.blit(frame, (0,0))
        pygame.display.update()

        for event in pygame.event.get():
			if event.type == KEYDOWN:
				sys.exit(0)
except KeyboardInterrupt,SystemExit:
    pygame.quit()
    cv2.destroyAllWindows()