I do not know how to find the letter grade of the Class average


#1


Below this line, add a link to the EXACT exercise that you are stuck at

https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/5?curriculum_id=4f89dab3d788890003000096

'In what way does your code behave incorrectly? Include ALL error messages.'

Traceback (most recent call last):
File "python", line 63, in
File "python", line 39, in get_letter_grade
File "python", line 30, in get_average
TypeError: 'float' object has no attribute 'getitem'

'What do you expect to happen instead?'

I get the class average, but it will not give me the proper letter grade. It gives me a weird trace back problem


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

students = [lloyd, alice, tyler]

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

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


#2

HI this function

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"

YOu should remove this line

score = get_average(student)

then put as parameter* to this function **score

def get_letter_grade(score):
    ...