Not an issue.

Fixed.

Parentheses are missing in the print statement of the test (first line), in Python.

Edit:
At least for the Python 3.x versions

Ranks can't be changed.

And your point is?

Does it really matter? Honestly. Not everything in life has to be a competition...

It is not really 6kyu, no?
It feels way easier IMO..

I think I'm mutating array on accident, which is causing the test to fail.

I'm getting an odd error after running my attempt. For example, the Output says "Expected: '[66, 48, 'x']', instead got: '[66, 48, 43]'". I logged the array that was passed into the function and it was [66, 48, 43], so based on the instructions my answer should be right. This is happening for several test cases that the Ouput is stating it expected an array and several elements in that array are 'x'. I'd appreacite any help or explanation.

Hi Knako, please post your code with proper markdown and a spoiler tag, thanks.

Anyone know how to fix this?

Traceback (most recent call last):
File "main.py", line 1, in
from solution import *
File "/home/codewarrior/solution.py", line 20
SyntaxError: Non-ASCII character '\xc2' in file /home/codewarrior/solution.py on line 20, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details

I liked it so much!
there should be more like this

(even is just realized after i made it way too complicated :D )