# Part of the Whole

#1

Oops, try again. get_class_average([alice, lloyd]) returned 91.15 instead of 85.85 as expected

who can kindly help me pointing the error? I am doing it for a day...

``````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]
}

def average(numbers):
total=sum(numbers)
average=float(total)/len(numbers)
return average

def get_average(student):
homework = average(student["homework"])
quizzes = average(student["quizzes"])
tests = average(student["tests"])
return homework*0.1 + 0.3* quizzes + 0.6* tests

if score >=90:
return "A"
elif score >=80:
return "B"
elif score >=70:
return "C"
elif  score >=60:
return "D"
else:
return "F"

students=[lloyd,
alice,
tyler
]

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

#2

a function ends the moment a return keyword is reached

if a return keyword is reached in a loop, the function still needs to end, so the loop will break

so, your loop breaks in its first iteration

#3

Thanks a lot. I change the place of "return" like following. And I succeed.

#4

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