Need help with "unsupported operand type(s)"

[_dave]

Finally got it - a big thanks for all the help, 1 down and 999999999999 to go

final code:

# LEARNING ABOUT "LIST"

# list of names ---
ListOfNames = ["tom" , "bill" , "dick", "harry"]
print(ListOfNames)
print("")   #add a space for next line

# what is the total numbers in the list ---
TotalNumberInList = str(len(ListOfNames))
print ("Total number of names are: " + str(TotalNumberInList))

# keep number in range ---
print ("numbers to use must be between 1 and " + str(TotalNumberInList))
print("")   #add a space for next line

# remove one name ---
RemoveNameNumber = int(input ("Enter the number of the name to remove: "))
print("")   #add a space for next line

# name that will be removed ---

NameRemoved = ListOfNames[RemoveNameNumber -1]
print ("Person being removed is " + NameRemoved)
print("")   #add a space for next line

# remove name from listing and print new listing ---
del ListOfNames[RemoveNameNumber -1]
print ("New List of Names are: " + str(ListOfNames))