suitcase = 
Your code here!
list_length = suitcase # Set this to the length of suitcase
print "There are %d items in the suitcase." % (list_length)
Traceback (most recent call last):
File "python", line 11, in
TypeError: %d format: a number is required, not list
Oops, try again. Your code looks a bit off. Check the Hint if you need help! Your code threw the following error: %d format: a number is required, not list
WHAT IS MY MISTAKE
Replace this line with your code.