I have! ---> Oops, try again. Did you remember to assign a value to list_length?
why is this wrong?
suitcase = ['T-shirt', 'sun-cream', 'swimming-trunks'] suitcase.append('sunglasses') # Your code here! 'T-shirt' = 1 'sun-cream' = 2 'swimming-trunks' = 3 'sunglasses' = 4 list_length = sunglasses # Set this to the length of suitcase print "There are %d items in the suitcase." % (list_length) print suitcase