Help with pygame tutorial

[metulburr]

You need to make sure you are indenting correctly. As this is the entire issue.

from this:

    while running:
        for game_event in pygame.event.get():
            if game_event.type == QUIT:
                running = False
        if game_event.type == KEYDOWN:
            if game_event.key == K_BACKSPACE:
                if len(text)>0: # if length of text is > 0
                    text = text[:-1] # delete the last letter in the string
        else:
            text += game_event.unicode
            # else add the letter to the end of the string
        img = font.render(text, True, RED)
        rect.size=img.get_size()
        cursor.topleft = rect.topright
 
        screen.fill(background)
        screen.blit(img, (20, 20))
        pygame.display.update()

to this:

    while running:
        for game_event in pygame.event.get():
            if game_event.type == QUIT:
                running = False
            if game_event.type == KEYDOWN:
                if game_event.key == K_BACKSPACE:
                    if len(text)>0: # if length of text is > 0
                        text = text[:-1] # delete the last letter in the string
                else:
                    text += game_event.unicode
                    # else add the letter to the end of the string
            img = font.render(text, True, RED)
            rect.size=img.get_size()
            cursor.topleft = rect.topright
     
            screen.fill(background)
            screen.blit(img, (20, 20))
            pygame.display.update()

Here is an example of a working textbox for comparison: