Create a new function named just_right that takes a single argument, a string.

You are very close. See below:

def just_right(string):
  if len(string) < 5:
    return("Your string is too short.")
  elif len(string) > 5:
    return("Your string is too long.")
  else:
    return True

The only modifications I made were making the the (1) second "if" an "else if" statement and (2) making the print statements "return." I changed (1) because of common convention. If you have multiple if statements, many of them can be run. For example:

x = 5

if x <= 5:
  print("Yes.")
if x = 5:
  print("Yes, duh.)

In this case, it will print both responses. Using an elif statement will only allow the first true statement to be returned, and it will skip all of the other branching code below, which is more efficient.

(2) You want each answer to be "returned" from the function, not printed. Functions will typically have a response, which is why you use return. Think of a function like a machine: you put a bunch of ingredients into it (parameters), and it produces and spits out a product (return ... answer).

Don't forget to do

len(string) > 5 # to get the length of the string that was entered

otherwise you cannot compare a string to a number.