No,actually. after the first if statement becomes True (here 73>70), so the third if statement would be executed, and the return statement in if statement would throw the control out of the function. Hope that makes sense.

Thank you Polarish, that's important!

How could it return A if 73 is not >=90 ?

let's assume mean is 73 so it could be return A or B or C, right? or i'm missing something!

shouldnt this be wrong if you are not making conditions mutually exclusive a 95 grade should return all abcdef

its less readable to me . isnt good python code meant to be easy to read

Thanks for the explanation!
1 kyu!!
Respects (｡♡‿♡｡)

Thank you.
Well, it's more clear now :)

• easier to read than code with several lines (as long as the line is not too long/convoluted, ofc. And ofc, you need just a bit of practice to know about this kind of construct to read them easlily)
• easier to maintain (well, that shouldn't be needed for that kind of function)
• generally faster than deployed loops (well, doesn't really apply here, unless you're crazy enough to use a for loop when joining the chars ;) ), assuming the behavior of the code is the same
• ...well , that's cooler too. ;)

well, yes, I like the word "well"... x)