Part of The Whole list integers?


#1


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

When I run the code I receive this message: 'Oops, try again. get_class_average([alice]) resulted in an error: list indices must be integers, not str'


Since I got no such formatting error in the previous parts of the problem, I don't understand why it's causing trouble. I've been stuck on this one for days.


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)
    average = float(total)/len(numbers)
    return average
    
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(score):
    if score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"
    
def get_class_average(students):
    results = []
    for student in students:
        results.append(get_average(students))
    return average(results)


#2

Hi @cloudslayer08665,

You are passing the entire students list as an argument here ...

    results.append(get_average(students))

#3

Ok I'll try with just one student?


#4

Thanks mate, problem solved


#5

Yes, within the loop, pass one student at a time. Each iteration of the loop will process an individual student.


#6