lauren3.py

to_dos = ["Haircut"]

def print_to_dos(to_dos):
    for to_do in to_dos:
        print("- %s" % to_do)

def new_to_do(to_dos):
	to_do = raw_input("What else do you need to do? ")
	to_dos.append(to_do)

def complete_to_do(to_dos):
	print ("Oops still a work in progress!")

while (True):
    action = raw_input("New item, completed item or print list? ")
    if action == "New":
        new_to_do(to_dos)
        print_to_dos(to_dos)
    elif action == "Completed":
        complete_to_do(to_dos)
    elif action == "Print":
        print_to_dos(to_dos)
    else:
        print("Does not compute.")