I can not identify the error. What is wrong?

#1

Oops, try again. get_class_average([alice]) resulted in an error: list indices must be integers, not str

``````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(students["homework"])*0.1
quizzes = average(students["quizzes"])*0.3
tests = average(students["tests"])*0.6
return homework+quizzes+tests

if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >=70:
return "C"
elif score >= 60:
return "D"
else:
return "F"
students = [lloyd,alice,tyler]

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

#2

results needs to be outside of your for loop because you are calling it

here, but it can't access a variable from inside the for loop. It needs to be initialized outside of it.

#3

In your `get_average` function, you are referencing `students`, instead of the function parameter, `student`, for example here ...

``homework = average(students["homework"])*0.1``

Also see @kyleaw 's post.

#4

Tks a lot guys! that worked!

#5

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