# 15/15 Median. Bug or my mistake?

#1

``````Hi, Community!
I was solving the last task from this block and stuck here. I was solving this in Visual Studio Code and the code below worked great there, but here it says, "Oops, try again. median([1]) resulted in an error: list indices must be integers, not float "
What is wrong?

def median(_list):
sorted_list = sorted(_list)
result = 0
length = len(sorted_list)
if length % 2 == 0:
mid_val1 = sorted_list[round(length/2)]
mid_val2 = sorted_list[round((length/2)-1)]
result = (mid_val1 + mid_val2)/2.0
else:
result = sorted_list[round(length/2)]
return result``````

#2

look at this code:

``````def median(_list):
sorted_list = sorted(_list)
result = 0
length = len(sorted_list)
if length % 2 == 0:
mid_val1 = sorted_list[round(length/2)]
mid_val2 = sorted_list[round((length/2)-1)]
result = (mid_val1 + mid_val2)/2.0
else:
print round(length/2)
result = sorted_list[round(length/2)]
return result

print median([1])``````

as you can see, round will make the number `0.0`, you don't need `round`, dividing two integers will just give a integer as result. (in python2 dividing two integers will floor the number)

VS might run python3, then you might need round, although i then would use floor, round is always a bit of a tricky thing

#3