Exercise 9/10 gives error even though it works


#1



I am stuck on Exercise 9/10 which can be found HERE


The error it gives 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


In the Output Screen, it doesn't give any errors, and does exactly what it is supposed to. But, it won't let me move onto the next exercise.


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)
    return total/len(numbers)

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(score):
    if score>=90:
        return "A"
    elif score<90 and score>=80:
        return "B"
    elif score<80 and score>=70:
        return "C"
    elif score<70 and score>=60:
        return "D"
    else:
        return "F"


def get_class_average(students):
    results = []
    for student in students:
        results.append(get_average(student))
    return average(results)

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

Please help!!!


#2

the students list you build in this exercise is missing, you need to add it again


#3

Ohhhh thank you so much!


#4