Python Pong Collision Detection

def moveBall():
    if ball['y'] > (COURT_HEIGHT - 25) and ball['x'] <= (computerPaddle.right + ball['radius']) and ball['x'] >= (computerPaddle.left - ball['radius']):
        ball['speed'] += 1
        if ball['dir'] == DOWNRIGHT:
            ball['dir'] = UPRIGHT
        if ball['dir'] == DOWNLEFT:
            ball['dir'] = UPLEFT
    elif ball['y'] > COURT_HEIGHT:
        score['player'] += 1
        newRound()

    if ball['y'] < 25 and ball['x'] <= (playerPaddle.right + ball['radius']) and ball['x'] >= (playerPaddle.left - ball['radius']):
        ball['speed'] += 1
        if ball['dir'] == UPRIGHT:
            ball['dir'] = DOWNRIGHT
        if ball['dir'] == UPLEFT:
            ball['dir'] = DOWNLEFT
    elif ball['y'] < 0:
        score['computer'] += 1
        newRound()


    if ball['x'] > COURT_WIDTH - ball['radius']:
        if ball['dir'] == UPRIGHT:
            ball['dir'] = UPLEFT
        if ball['dir'] == DOWNRIGHT:
            ball['dir'] = DOWNLEFT

    if ball['x'] < ball['radius']:
        if ball['dir'] == UPLEFT:
            ball['dir'] = UPRIGHT
        if ball['dir'] == DOWNLEFT:
            ball['dir'] = DOWNRIGHT


    if ball['dir'] == UPLEFT:
        ball['x'] -= ball['speed']
        ball['y'] -= ball['speed']

    if ball['dir'] == UPRIGHT:
        ball['y'] -= ball['speed']
        ball['x'] += ball['speed']

    if ball['dir'] == DOWNLEFT:
        ball['y'] += ball['speed']
        ball['x'] -= ball['speed']

    if ball['dir'] == DOWNRIGHT:
        ball['y'] += ball['speed']
        ball['x'] += ball['speed']

    #print(ballX, ballY)
    pygame.draw.circle(windowSurface, WHITE, (ball['x'], ball['y']), ball['radius'], 0)