Student become teacher

#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]
}
students=[lloyd,alice,tyler]
def average(numbers):
total=sum(numbers)
total=float(total)/len(numbers)
def get_average(student):
homework=0.1*average(student["homework"])
quizzes=0.3*average(student["quizzes"])
tests=0.6*average(student["tests"])
return homework+quizzes+tests
if score>=90:
return "A"
elif score>=80:
return "B"
elif score>=70:
return "C"
elif score>=60:
return "D"
else:
return "F"
score1=get_average(lloyd)
score2=get_average(alice)
score3=get_average(tyler)
print score1
print score2
print score3
results=[]
def get_class_average(students):
for student in students:
x=get_average(student)
results.append(x)
return results
results=get_class_average(students)
print results
aver=average(results)
print aver``````

error is coming in this code.
how to rectify it ?

#2

Whats the error you're getting? Also, could you format your code please? Just highlight your code and press the </> button

#3

get_class_average([alice]) resulted in an error: list indices must be integers, not str

#4

Why do you have this part? I doubt it's the error, I'm just curious.

#5

no its not the error
i was just curious if the averages of individual was right

#6

Alright I think I figured it out.

1. In your get_class_average function when you're using return results you want to use return average(results)

2. Delete print get_letter_grade(score) because score isn't defined.

3. Replace your last 4 lines of your code with the following;

print get_class_average([lloyd,alice,tyler])

Let me know if it works

#7

get_class_average([alice]) returned 83.8666666667 instead of 91.15 as expected

Got this error now

#8

Interesting....Could you post your updated code for me?