I really like this solution ngl, clever!

the .upper() function makes the string all capitals, so we are just comparing wether the all capitals version of the string is equal to the string, therefore checking if the string is all capitals

did the same, so neat!

Oh, indeed, input is string, not list :)

Cybersamurai, wdym? It works perfectly, I just tried it.

who can explain me this

gg

So clever. good luck!

That's very clever, congrats!

That one is crazy gg

It's not faster, if you run the code, you'll notice that the time varies a lot between one and the other, sometimes one is faster and sometimes the other, and endswith is written in C for performance.

Clever, but not efficient. Nit: should space around operators by default to improve readability.

It's odd when you know most people will do the same thing as you, when there are so many ways to do it