To anyone struggling with the code, it's not enough to simply type the code. You have to take few steps, to find the code inside your own file.
This hero here explained in details, thanks a huge lot:
You have to enable the console from the renpy folder. I won't explain how as it has been posted here and is also easily learned with a simple Google search. After that, open the game, press Shift+O to open the console, copy and paste this
persistent.current_news["patreon"]
Press enter and the code will appear.
Ive never done anything like this before with Renpy and it took me 2 minutes after reading the instructions other users have provided here. TRY IT
To enable the console from renpy, here are the instructions:
To enable the console in a Ren'Py game, you need
to activate developer mode and then use a key combination to access it while in-game. First, you may need
to edit a file named 00console.rpy (just enter the game folder, and search for this file) within the game's "renpy/common" folder.
Then, find the line that say:
config.console. It'll be False. Change it to True.
Then, while running the game, press Shift + O to open the console.
After opening the console, copy and paste
persistent.current_news["patreon"]
Press enter and the code will appear.
For me, it was 733866. Don't know if it'll be the same for you guys. So, if it's not, just do as above! Really, easy!