7/9 Followed all steps but error

#1

I’m on the calculating grade part. I’ve had no real issues so far. Pretty certain I’m right on this step. But I’m getting an error message. I tried printing my output on an earlier step and it didn’t work. I thought nothing of it, assuming I was just typing an incorrect variable, and carried on. So I think the problem lies earlier on in the code and I’m not well versed enough to pick it up. My code is:

/spoiler
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]
}

def average(numbers):
total = sum(numbers)
return float(total) / len(numbers)

def get_average(student):
homework = average(student[“homework”])
quizzes = average(student[“quizzes”])
tests = average(student[‘tests’])
return 0.1 * homework + 0.3 * quizzes + 0.6 * tests

if score >= 90:
return “A”
elif score >= 80:
return “B”
elif score >= 70:
return “C”
elif score >= 60:
return “D”
else:
return “F”

/spoiler