# Just Weight and See

#1

Hello!

This is my problem : > Oops, try again. get_average(alice) raised the following error: 'list' object has no attribute 'average'.

The massage appears after this 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]
}

def average(numbers):
total = sum(numbers)
total = float(total)
def get_average(student):
homework = student["homework"].average()
quizzes = student["quizzes"].average()
tests = student["tests"].average()

return 0.1 * float(homework) + 0.3 * float(quizzes) + 0.6 * float(tests)``````

I don't really understand what I'm doing wrong. Could anyone help me, please?

#2

Hi, @toivoscr ,

In these exercises, `average` has been defined as a function, but not a method. Therefore, this is not a correct call ...

``homework = student["homework"].average()``

Instead, you need to pass `student["homework"]` as an argument to the `average` function.

The two statements that follow that one also need to be revised.

#3

Thank you, @appylpye ! Now it works.

#4