I can not identify the error. What is wrong?


#1



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


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(students["homework"])*0.1
    quizzes = average(students["quizzes"])*0.3
    tests = average(students["tests"])*0.6
    return homework+quizzes+tests
    
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"
students = [lloyd,alice,tyler]  


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


#2

results needs to be outside of your for loop because you are calling it

here, but it can't access a variable from inside the for loop. It needs to be initialized outside of it. :slight_smile:


#3

In your get_average function, you are referencing students, instead of the function parameter, student, for example here ...

homework = average(students["homework"])*0.1

Also see @kyleaw 's post.


#4

Tks a lot guys! that worked!


#5

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