```
"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 = float(sum(numbers))
total = total / float(len(numbers))
return total
def get_average(student):
homework = average(student["homework"])
quiz = average(student["quizzes"])
test = average(student["tests"])
return homework * 0.1 + quiz * 0.3 + test * 0.6
def get_letter_grade(score):
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70 :
return "C"
elif score >= 60 :
return "D"
else:
return "F"
print get_letter_grade(get_average(lloyd))
students = [lloyd, alice, tyler]
def get_class_average(students):
results = []
for students in students:
results.append(students get_average(student))
return average(results)
print get_class_average(students)
print get_letter_grade(get_class_average(students))
```

The error I'm getting is: "Oops, try again. One of the following is missing or broken when we tried to use it: alice, lloyd, tyler, students, get_class_average, get_letter_grade"

however, the weird part of this is that my code is also throwing me this error: "File "python", line 19

def average(numbers):

^

SyntaxError: invalid syntax"

which is quite on because it started failing on lesson 8/9 and 9/9 anyone got any fixes or find something I'm do wrong? Thanks.