"How Is Everyone Doing?"...don't know about ya'll, but i'm stuck


#1

here's the code...and I get an error message "Oops, try again, One of the following is missing or broken when we tried to use it: alice, Lloyd, tyler, students, get_class_average, get_letter_grade"

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)
total = float(total)
average = total / len(numbers)
return average
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)

def get_letter_grade(score):
score = float(score)
if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
elif score >= 60:
return "D"
elif score < 60:
return "F"
print get_letter_grade

students=["lloyd", "alice", "tyler"]

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

    class_average=get_class_average(students)        
    print get_class_average

    letter_grade=get_letter_grade(get_class_average(students))
    print get_letter_grade

:confounded:


#2

when you create the list students, you're passing strings instead of dictionaries. Try:
students = [lloyd, alice, tyler]


#3

You might find a solution here: this is a related post.

You should check related posts first.


#4

I am stuck here. it keeps erroring with "AttributeError: 'tuple' object has no attribute 'append'. any idea?

get_letter_grade ( get_average(lloyd) )

def get_class_average(students):
results=()

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

return average(results)

students = [lloyd,alice,tyler]
print get_class_average(students)
print get_letter_grade(get_class_average(students))


#5

You are making results not a list. .append() is primarily for lists or dictionaries, but you made your results variable a regular old variable. it should be

results = []

If you were making results a regular variable, in real life you could have just done

results = results + get_average(student)

But for this assignment you are required to use the lists.