Why is it asking if I remembered to print the letter grade?

I DID

These are the instructions:

Instructions

1.Finally, print out the result of calling get_class_average with your students list. Your students should be [lloyd, alice, tyler].

- Then, print the result of get_letter_grade for the class's average.

This is literally the last Python thing I need to finish. I'm at 99%, and I STILL don't know why this isn't right!

```
lloyd = {
"name": "Lloyd",
"homework": [90.0, 97.0, 75.0, 92.0],
"quizzes": [88.0, 40.0, 94.0],
"tests": [75.0, 90.0]
}
alice = {
"name": "Alice",
"homework": [100.0, 92.0, 98.0, 100.0],
"quizzes": [82.0, 83.0, 91.0],
"tests": [89.0, 97.0]
}
tyler = {
"name": "Tyler",
"homework": [0.0, 87.0, 75.0, 22.0],
"quizzes": [0.0, 75.0, 78.0],
"tests": [100.0, 100.0]
}
students = [lloyd, alice, tyler]
# Add your function below!
def average(numbers):
total = float(sum(numbers))
return total / len(numbers)
def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
return homework*0.10 + quizzes*0.30 + tests*0.60
def get_letter_grade(score):
if score >= 90:
print "A"
elif score >= 80 and score < 90:
print "B"
elif score >= 70 and score < 80:
print "C"
elif score >= 60 and score < 70:
print "D"
else:
print "F"
def get_class_average(students):
result = []
for key in students:
result.append(get_average(key))
return average(result)
print get_class_average(students)
print get_letter_grade(get_class_average(students))
```