You are exactly correct.

Why not post it on kata's discourse? This is completely off-topic...

Thanks Chrono79
I misread the details and i was printing the result instead of creating the string.
problem solved

Your function should return the result instead of printing it.

I have problems with the traning in python. Several times it says to me I m wrong when my code works at home and log show that I obtain the right results. For example for the "Who likes it" :
Test Results:
Basic tests
Log
'no one likes this'
None should equal 'no one likes this'
Log
'Peter likes this'
None should equal 'Peter likes this'
Log
'Jacob and Alex like this'
None should equal 'Jacob and Alex like this'
Log
'Max, John and Mark like this'
None should equal 'Max, John and Mark like this'
Log
'Alex, Jacob and 2 others like this'
None should equal 'Alex, Jacob and 2 others like this'
Random tests
Testing for Sylvie, Daley Wong, Quincy Rosenkreutz, Sylia Stingray, Nene Romanova, Brian J. Mason, Linna Yamazaki, Largo
Log
'Sylvie, Daley Wong and 6 others like this'
It should work for random inputs too: None should equal 'Sylvie, Daley Wong and 6 others like this'

etc...

Someone can explain to me where i do a mistake?

thank in advance

How to press Esc to normal mode in codewars ?