Here is my Code

def printList(stringlist):
    empty = []
    if stringlist is None:
        print empty
    else:
        print stringlist

def add (stringlist, string):
    string = [] if string is None else string
    if stringlist is not None:
        stringlist.insert(0, string)
    else:
        stringlist.append(1)

it somehow appears "AttributeError: 'NoneType' object has no attribute 'append'"

I was originally looking for the code to be run like this:

>>> myList = None
>>> printList(myList)
[]
>>> for word in ['laundry','homework','cooking','cleaning']:
myList = add(myList, word)
printList(myList)
[laundry]
[homework, laundry]
[cooking, homework, laundry]
[cleaning, cooking, homework, laundry]