Part of a Whole


#1

<Below this line, add a link to the exact exercise that you are stuck at.>
https://www.codecademy.com/courses/python-beginner-en-qzsCL/1/4?curriculum_id=4f89dab3d788890003000096
<In what way does your code behave incorrectly? Include ALL error messages.>
Hello! i keep getting “Oops, try again. get_class_average([alice]) should return a number”.
<What do you expect to happen instead?>
What i’m doing wrong?

```python

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 = sum(numbers)
abc = float(total) / len(numbers)
return abc

student = [lloyd, alice, tyler]

def get_average(student):
for adc in student:
homework = average(student[“homework”])
quizzes = average(student[“quizzes”])
tests = average(student[“tests”])
return 0.10 * homework + 0.30 * quizzes + 0.60 * 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”

print get_letter_grade(get_average(lloyd))

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

<do not remove the three backticks above>

Thanks in advance!

#2

The problem is exactly what the error says.

You are returning a list instead of a number…


#3

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


#4

I’ve done that

return average(results)

But get this:

Oops, try again. get_class_average([alice]) resulted in an error: can’t multiply sequence by non-int of type 'float


#5

Thank you! Such a basic mistake :slightly_smiling:


#6

I’m getting this error: “Oops, try again. get_class_average([alice]) returned 80.55 instead of 91.15 as expected”

Has anyone had a similar problem? My code is basically identical to lobochefe


#7

same problem… Calculating 80.55 instead of 91.15.

My code looks identical to what is posted.

EDIT: NVM - had
return get_average(student)
results.append(get_average(student))

instead of

results.append(get_average(student))

Can someone explain why I cant do the for loop in two steps like my original?


#8

I think my issue may have been because I had the return statement indented incorrectly. It was not aligned with ‘def’ which seemed to fix the problem


#9

Had the same issue…thank you! :slight_smile:


#10

■■■■ alice she always screws up everything doesn’t she