https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/2?curriculum_id=4f89dab3d788890003000096

The following error message keeps appearing and I do not know why:

**Oops, try again**. get_average(alice) raised the following error: local variable 'homework' referenced before assignment

```
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)
result = total / len(numbers)
return result
def get_average(student):
homework = average(student[homework]) * 0.1
quizzes = average(student[quizzes]) * 0.3
tests = average(student[tests]) * 0.6
return homework + quizzes + tests
```