# Par of the Whole

#1

When I try to run my code, it makes an error "get_class_average([alice]) resulted in an error: list indices must be integers, not str"

I expected it to run get_average and add the result to the results list.

`````` 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)
total = float(total)
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

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

def get_class_average(students):
results = []
for item in students:
student = get_average(students)
results.append(student)
average(results)``````

#2

you need to return average(results) and put item instead of students in get_average(), since item holds the value you iterated over students

#3

Thanks, that solution worked perfectly!