thats what i did

Comments on solutions appear on the dashboard and are therefore visible to anyone, even if they can't actually view the solution page itself.
The spoiler flag prevents comments from being displayed on the dashboard and to anyone who hasn't solve the kata.

very curious to know couple of things:

1. what is the use of Spoiler flag
2. (Assuming that Spoiler flag hides the comment or something). The main post itself has the complete answer. Then what is the point?

forgot one thing - i think after compiling its a differents (arduino work like this)

funny :D thanks i learned something new about python :D

to load the complete sys modul is not best practices... only my 2 cents

oh sorry - my bad.

i was so proud on this:
def solution(string, ending):
return (string[len(string)-len(ending):len(string)] == ending)

then is saw yours...xD have to go more simple ^^