Compilation Error


#1

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!
student = ['lloyd','alice','tyler']
def average():
    avg = float(sum(result()))/len(result())
    print (avg)
def get_class_average(student):
    result = []
    for key in student:
        result.append(get_average(student))
    return average(result)    
def get_average(student):
    homework = float(sum(student['homework']))/len(student['homework'])
    quizzes = float(sum(student['quizzes']))/len(student['quizzes'])
    tests = float(sum(student['tests']))/len(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'
get_letter_grade(get_average(lloyd))

my code runs with saying " list indices must be integers, not str
plz help


#2

Does it indicate the line to which the error is originating from?


#3

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