Traceback (most recent call last):

File "python", line 57, in

File "python", line 39, in get_letter_grade

File "python", line 32, in get_average

TypeError: 'float' object has no attribute '**getitem**'

this is my code

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]

}

# Add your function below!

def average(numbers):

total = sum(numbers)

total = float(total)

average = total / len(numbers)

return average

def get_average(student):

homework = average(student["homework"])

quizzes = average(student["quizzes"])

tests = average(student["tests"])

return homework * .1 + quizzes * .3 + tests * .6

def get_letter_grade(student):

if get_average(student) >= 90:

return "A"

elif get_average(student) >=80:

return "B"

elif get_average(student) >= 70:

return "C"

elif get_average(student) >= 60:

return "D"

else:

return "F"

def get_class_average(students):

results = []

for student in students:

results.append(get_average(student))

return average(results)

students = [lloyd, alice, tyler]

print get_class_average(students)

print get_letter_grade(get_class_average([lloyd, alice, tyler]))

is the error I am getting

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