!deleted!


#1



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


everything was fine for past exercises until this one, A LOT of error messages came out and i dont really understand them. they looked the same to other peoples

Traceback (most recent call last):
File "python", line 54, in
File "python", line 50, in get_class_average
File "python", line 28, in get_average
TypeError: string 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(n):
    total = sum(n)
    total = float(total)
    total = total/len(n)
    return total
    
def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student["quizzes"])
    tests = average(student["tests"])
   
    return homework * 0.1 + quizzes * 0.3 + tests *0.6
    
    
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):
    result = []
    for student in students:
        result.append(get_average(student))
    return average(result)
        
students = ["lloyd", "alice", "tyler"]       
print get_letter_grade(get_class_average(students))
print
print get_class_average(students)


#2

your students list, why did you store strings in the list?


#3

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