Student Becomes the Teacher - Just weight and see


#1

Oops, try again. get_average(alice) raised the following error: 'float' object is not iterable

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]
}

total = 0 
def average(numbers):
    total = sum(numbers)
    total = float(total)
    x = total / len(numbers) 
    return x
    
# Add your function below!

def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student["quizzes"])
    tests = average(student["tests"])
    return sum(homework*.1 + quizzes*.3 + tests*.6)

I'm not sure why the float is not iterable, any help is much appreciated


#2

if we add a function call:

print get_average(lloyd)

we can see interpreter errors, which helps us pinpoint the problem

sum() is a built in function to calculate the sum of an iterable (like a list), in your case, you just have a bunch of numbers which you can add together with plus (+), no need to use sum()


#3

ok its fixed thank you, btw i like your troubleshooting tip to call the function and view the interpreter errors

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]
}

total = 0 
def average(numbers):
    total = sum(numbers)
    total = float(total)
    x = total / len(numbers) 
    return x
    
# Add your function below!

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

#4