My bad, sorry for the mishap: try it now, it should work :)

Same issue, seems this kata is not working for python?

same issue here,hmm, my code passed all other testes, but it failed in Traceback, as you did, but nowhere in my code use map() function, list(),set(),yield are all I used

Same issue here.

Same problem here, I try it all, generator solution included! all times the same error... some help pls.

Made how to proceed even more explicit, now it should be rather fool-proof :)

The kata is thought to be done after the Tribonacci kata, where I left most of the description, finding redundant to repeat myself, but maybe I could either make it more clear or take something from that here, mh...

If you have any suggestion I would surely consider them; and thanks for your kind appreciation :)