VN Ren'Py problems with a translation

[iOtero]

I put this code in my script.rpy to modify some fonts that are not compatible with international characters, but it does nothing for me .

Would anyone know why?

translate spanish python:
    gui.text_font = "fonts/dejavu.ttf"
    gui.name_text_font = "fonts/kalam.ttf"
    gui.interface_text_font = "fonts/oswald.ttf"
    gui.text_size = 20
    gui.interface_text_size = 30
    gui.label_text_size = 30
    gui.textbox_height = 150
    gui.dialogue_width = 900

Thanks...