Interpolated text not displaying correctly, but only in one project

[Imperf3kt]

I've picked up a project that I stopped working on a couple of months ago and I've noticed an odd error.
I have three music files that play during my game and when the music begins playing, I use renpy.notify to inform the player of what the song is called.

In backups of this project, everything works fine, but in the main version it no longer works, instead just displaying the variable name, and I cannot figure out why. It was working last I remember.
I've tried clearing persistent data and forcing a recompile but neither has made any difference.
What it looks like in a backup:

what it looks like in my main project:


This is the code I'm using, which is identical to the code in my backups.

Code: Select all

default np = "none"
default tm = 0
define audio.tcool = "music/Too Cool.ogg"

########################

    play music tcool
    $ np = "Too Cool"
    $ tm = 5
    $ renpy.notify("Now Playing - [np]")
    

And my notify screen:

Code: Select all

screen notify(message):

    zorder 100
    style_prefix "notify"

    frame at notify_appear:
        text "[message!tq]"

    timer tm action Hide('notify')


transform notify_appear:
    on show:
        alpha 0
        linear .25 alpha 1.0
    on hide:
        linear .5 alpha 0.0


style notify_frame is empty
style notify_text is gui_text

style notify_frame:
    ypos gui.notify_ypos

    background Frame("gui/notify.png", gui.notify_frame_borders, tile=gui.frame_tile)
    padding gui.notify_frame_borders.padding

style notify_text:
    properties gui.text_properties("notify")
    

Which as far as I can see, apart from my addition of a customisable timer (tm), is identical to a default notify screen.

Anybody got any hints about whats going on?
I'd rather not start a new project and move everything over as I've done quite an extensive amount of work on the screens in this project (including since the backup) and I'd prefer to avoid redoing it/copying it.

[IrinaLazareva]

Code: Select all

    $ renpy.notify("Now Playing - %s" %np)

[Imperf3kt]

Code: Select all

    $ renpy.notify("Now Playing - %s" %np)

Thanks, that works well, however I don't really understand it.
Any idea why it won't work how I was previously doing it? Still seems to work in older copies of my project, so it isn't something thats changed in the renpy itself.

[IrinaLazareva]

Any idea why it won't work how I was previously doing it?

Honestly, I'm more surprised that this method once worked...
Anyway, I don't know. The code works. The rest doesn't matter.

[hell_oh_world]

Code: Select all

    $ renpy.notify("Now Playing - %s" %np)

Thanks, that works well, however I don't really understand it.
Any idea why it won't work how I was previously doing it? Still seems to work in older copies of my project, so it isn't something thats changed in the renpy itself.

Quite not sure about it though. I got a hunch that its because interpolation only works on renpy itself and not inside python. And python statements use $ or python blocks. So technically speaking, the interpolation happened inside the python which is not feasible. I mean, why bother with interpolations if you can concatenate variables easily with python or string formatting.