NRules | Rules engine for .NET , based on the Rete matching algorithm | Rule Engine library

I want to update a particular property in a yaml file while leaving the rest untouched, including formatting, comments etc. I'm using raumel.yaml. But when I save the file it's formatting gets messed up. I'm using python 3.9.5 and raumel.yaml Version: 0.17.10.

test.yaml:

I'm looking for a working example of dynamic NRules. Actually, I want to write the rules in a notepad file and want to read them at runtime.

I have been searching it through the internet for last 4 days but didn't find anything.

Any help is appreciable.

first of all I'm just beginning my journey with Python (so you can also ignore all hideous semicolons). It is a simple program as a task at the end of chapter checking what you have learned. Basically it's a "guess the number" but the program has to guess your number (it's a reversed program from book). Maybe it's not the intention of the book and I've yet not learned it but my curiosity took the best of me and I have to ask. How can you remember variables between loops? I think I have to use table and in that way save and check variables between loops, but maybe there is an easier way in Python itself.

In code the program remembers last number it generated but another one is "forgotten" - obviously visable in code. The purpose of this is to minimise attempts of program to guess the number (narrow numbers that are guessed). code to get the idea of program: