Why won't this work?


#1



https://www.codecademy.com/courses/python-beginner-en-qzsCL/1/3?curriculum_id=4f89dab3d788890003000096#


Oops, try again. get_letter_grade(100) resulted in an error: 'int' object has no attribute 'getitem'


Expected it to return the letter grade.
Does my 'score' variable return an integer? (from the function: get_average(student))


Replace this line with your 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]
}

# Add your function below!
def average(numbers):
    total = sum(numbers)
    total = float(total)
    result = total/len(numbers)
    return result

def get_average(student):
    homework = average(student['homework'])
    quizzes = average(student['quizzes'])
    tests = average(student['tests'])
    return 0.1 * homework + 0.3 * quizzes + 0.6 * tests
 
def get_letter_grade(student):
    score = get_average(student)
    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(lloyd)


#2

The SCT (lesson checker) is expecting this function to take a number, not a dictionary.

The thing to do would be take a measure of the student, and pass the weighted average to this function. Of course remove this line:

Also, replace student with score as the parameter.


#3

Sorry I"m still a bit confused.


#4

Oh I think I know what you mean by the lesson check expects it to take a number.

But it's possible to take a dictionary right?


#5

No. It expects a value between 0 and 100.


#6

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