Unless there is no-one else in the class and the class_points is an empty list...

Is this answer definitely correct? Where in the code is it taken into account that “Note: Your points are not included in the array of your class’s points. Do not forget them when calculating the average score!”?

i have no idea why it worked. it could have been a bug in the tests

Not incorrect. That part of the kata is a red herring, wether the author intended that or not. Just think about it, if your score is the highest score it will always be above the average of all other scores and your score can never be low enough to make the average lower than itself. The code here is using sound logic.

the error is in the test code. At each test, it doesn't take into account the total number of items in the list ( your_points + class_points)
that's why it passes even with your code :)

No you aren't. For one, there is no global variable to modify because result is initialized and mutated inside of the function. Second, strings are immutable. This isn't modifying the string, its appending to a non-related list at specific slices of the string. . It is imperative code though, if that is what you meant. This can be written functionally but in this case, the imperative definitely seems more readable.

It doesn't matter whether you add your own points or not, the answer will be the same either way.

it passed tho

Incorrect. The Kata says to include your own points into the average.

Despite the kata instructions saying to include your own scores, it is not necessary.

Wow, it's so laconically :) Interesting task!

I don't get the joke...

i really didnt want this to be true , but well done .