Q:

Python string iteration issues

I have just started learning python and I am a bit confused. Why does this code not work? When I call pie, it returns 1 instead of 5. What am I not understanding here?
score = {"a": 1, "c": 3, "b": 3, "e": 1, "d": 2, "g": 2, 
     "f": 4, "i": 1, "h": 4, "k": 5, "j": 8, "m": 3, 
     "l": 1, "o": 1, "n": 1, "q": 10, "p": 3, "s": 1, 
     "r": 1, "u": 1, "t": 1, "w": 4, "v": 4, "y": 4, 
     "x": 8, "z": 10}

 def scrabble_score(word):
     total = 0
     word = word.lower()
     for letter in word:
         total =+ score[letter]
     else:
         return total

A:

You have got the operator incorrectly. It should be +=, not =+.

