Same error here :/ My solution works fine in another environment.
(NameError: name 'maketrans' is not defined)

I really enjoyed the added difficulty, made me learn a few new things about sorting :-)

Ok I think technically you are right IVBakker but i was also disappointed. As I am still at the beginning of my learning I figured out a recursive solution and was pretty proud of it because its also the first time I used the OS module, so two new things tackled!

I hoped to check others submissions for different approaches to solving this kata with a recursive function. Unfortunately i could not find one :/.

Same for me, also on Python

Well... that worked! thank you for your suggestion. I would have never guessed that this could be why I got the Unknown Error! Passed all the tests now - Moving on to the next Kata :)