How to put a text on pygame screen?

I was trying to put a text inside a pygame screen at a specific coordinate, what can I do to print a text and restrict its area?

    import sys, pygame
    pygame.init()

    size = width, height = 800, 600
    speed = [0, 0]
    black = 0, 0, 0

    screen = pygame.display.set_mode(size)

    fundo = pygame.image.load("baner.jpg")
    dialogo = pygame.image.load("dialogo.png")
    estatico = fundo.get_rect()

    while 1:
        for event in pygame.event.get():
            if event.type == pygame.QUIT: sys.exit()

        estatico = estatico.move(speed)
        if estatico.left < 0 or estatico.right > width:
            speed[0] = -speed[0]
        if estatico.top < 0 or estatico.bottom > height:
            speed[1] = -speed[1]

        screen.fill(black)
        screen.blit(fundo, estatico)
        screen.blit(dialogo, estatico)
        pygame.display.flip()

This is what I have so far, two images and wanted to put a text on top of the dialog