8. students become teachers


#1

Hi,

I am getting same error as above -

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=float(sum(numbers))/len(numbers)
    return total
    
def get_average(student):
    homework=average(student["homework"])
    quizzes=average(student["quizzes"])
    tests=average(student["tests"])
    sum=0.10*average(student["homework"]) + 0.30*average(student["quizzes"]) + \
    0.60*average(student["tests"])
    return sum
    
print get_average(alice)
print get_average(tyler)
print get_average(lloyd)

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"
     
score_lloyd=get_average(lloyd)   
#print get_letter_grade(score_lloyd)

def get_class_average(students):
    results=[]
    for student in students:
        score=get_average(student)
        results.append(score)
    print results
    print get_average(results)
    return score

=====================================

Getting Error - Oops, try again. get_class_average([alice]) resulted in an error: list indices must be integers, not str.

Please help! I am stuck. Thanks.


Get_average(alice) raised the following error: list indices must be integers, not str
#2

remove this 3 lines:

    print results
    print get_average(results)
    return score

and then follow step 4 of the instructions:

Finally, return the result of calling average() with results


#3

Thanks so much :slight_smile:

Worked! I messed up by additional steps.

Thanks AGAIN !


#4