# Part of the whole

#1

Hi, this is 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]
}

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

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

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

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

this is the error message that I’m getting: get_class_average([alice]) resulted in an error: global name ‘students’ is not defined

#2

Hi @emileae,

The `get_class_average` function has a parameter named `class_list`. However, you are instead attempting to iterate through `students` here …

``````  for student in students:
``````

Your posted code is not formatted, therefore we cannot conveniently view its indentation in order to make sure it is correct.

#3

Oke this is my formatted 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]
}

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

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

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

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

this also doesnt work ?

#4

Thanks for the formatting.

There are several issues to consider here.

Take a close look at the `get_class_average` function.

You have `students` in this statement …

``````    results.append(get_average(students))
``````

Is that what you should be passing to the `get_average` function?

Is this statement indented correctly?

``````    return average(results)
``````

As you have it now, it is part of the `for` loop.

Also check the work that you did in Exercise 3: Put It Together. Is it still present in your code in the current exercise?

#5

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