Range isn't matching up with the list

I’m still new to coding and I came across this example. How come the range is 5 and not 6?

NameList=["Olivia", "Madison", "Mia", "Emily", "Charlotte", "Amelia"]

NoMoreSwap=False

while NoMoreSwap==False:
    NoMoreSwap=True
    for Index in range(5):
        if NameList[Index]>NameList[Index+1]:
            Temp=NameList[Index]
            NameList[Index]=NameList[Index+1]
            NameList[Index+1]=Temp
            NoMoreSwap=False


print("The name list is: ", NameList)

>Solution :

Since you are working with Index index and Index + 1 index you would get out of range since last index 5+1 (for Index in range(6)) is the last one in the loop you asked about.

Your list has 6 values -> len(list)==6 but list[5] is your last index.