# 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]
}

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

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)

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)

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.

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

Worked! I messed up by additional steps.

Thanks AGAIN !

#4