9/9 How is Everybody doing?


#1



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

I dont entirely understand whats wrong with this, as all it'll tell me is that I've not printed the letter grades, but when i go back and look at the lines with the error, they look exactly like when they accepted just a few sections back.
The error that pops up is this:
"Oops, try again. Did you remember to print the letter grade for the class's average?"
followed by this on the console:
"Traceback (most recent call last):
File "python", line 56, in
File "python", line 28, in get_average
TypeError: 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)
    total = total / len(numbers)
    return total
    
def get_average(student):
   homework = average(student["homework"]) * 0.10
   quizzes = average(student["quizzes"]) * 0.30
   tests = average(student["tests"]) * 0.60
   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"

get_letter_grade(get_average(lloyd))

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

print get_class_average(students)
print get_letter_grade(get_average(students))


#2

You should have it here as:

get_letter_grade(lloyd)

Also,

It should be:

print get_letter_grade(get_class_average(students))

Hope this helps! :smile: