Error in code


#1

Topic: Part of the whole

Here's my code

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]
}
student = [lloyd,alice,tyler]

Add your function below!

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

def get_average(student):
homework=average(student["homework"])
quizzes=average(student["quizzes"])
tests=average(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"

s=get_average(lloyd)
print get_letter_grade(s)

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

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


#2

Hello, @a1301!

Only mistake, that i see:

for student in students:
    results.append(get_average(students))

students - not correct input for get_average function.
Use student instead of students.


UPD:

And one more thing. Use "Preformatted text" button or Ctrl+Shift+C on your code when you adding it to the post.

When you use it you'll see somthing like this:

```
type or paste code here
```

Put your code between ``` and it saves it's structure. Like this:

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


def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student["quizzes"])
    tests = average(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"

That's makes much more easier to understand the written code.

Thank you for your attention.
Regards, NetScum~


#3

3 posts were split to a new topic: Get_class_average([alice, lloyd]) returned 91.15 instead of 85.85 as expected


#4

Thanks

code is working.


#5

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