What exactly is not readable? The * ?

Thought was visible on the solutions only??? My bad...

Nice!! Well done

mul = lambda : sum(i for i in range(1000) if not i%3 * i%5)
Use a generator ....

no need to check for non negative.. if it's logical it's automatically non-negative. So neither clever nor best practices!!!

I didnt read about the alphabet dict, that's why I created numalpha....

by far best practices....eheh

Sure!! thanx bro.

Arghhh. This is indeed very similar!! The purpose is the same, but in that case you should write a function while in my kata you should write a class decorator which is then applied to a function, but still I think you are right! I might think of a twist on this one to make it more original.
Thanx for your feedback.

Well, although very similar they are not exactly the same. I think this one is slightly more difficult because of the '0...' numbers and other little instructions.
But anyway, even though they are similar, I wouldn't mark it as an issue, but that's only my opinion!!

Nice kata i like it!!!

I agree