.......

///

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]

}

student = [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"])

def get_letter_grade(score):

#score = float(score)

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 student in students:

get_average(student)

results.append(get_average(students))

return average.results

........

I keep receiving this error:

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

I'm not sure why this step doesn't recognize the values of each student as integers whereas each function

I defined in the previous steps worked without incident. Any insight is appreciated.