['<','='][n==0]
That was impressive.

Do you mean string concatenation?

Very..readable, but all of these one-liners or two is sometimes intimidating..LOL

It is in conflict to PEP8 because it is too long. But I like it anyway. ;-)

Thanks, could you show me the topic that i should know to complete it?

Look at comment below and above, most of all writes about problem with test.

Yes, because most people do the same mistake here. With more than 5000 people having already completed the kata, there's not much room for a persistent bug in the kata. But I'll concede to you that the kata does not ask for the classical/normal way to handle a reccurcive function...

@alex.budiakov please have a look at test, it is real bug, you can put any value and get same error, isn't argument ?

Look at comment below and above, most of all write about problem with test.

if you can't pass tests it doesn't mean the kata is broken.
please work on your solution.

Because you need a number that is repeated 1 time, that's why min is used.

how does it work ?
why not max ?

A bug in the comments, if you try to edit your spoilered comment you will get empty comment in the edit mode

Wow, brilliant!

wow, good!

Looks awesome!
Not shure it is best practice.