What does can't assign to function call mean (python) [closed]

Answer 1

Instead of this:

grades.sum() = total

You'd rather do that:

total = grades.sum()

If you want to dig deeper, here is an explanation of the whys and hows.

Answer 2

I'm guessing that you want to pass a list of grades to your average() function.

You have the syntax a bit mixed up in grades.sum() = total and total.float() = total

You (probably) want something like this:

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

And you'd call that function like this:

avg = average(alice["homework"])

total = sum(grades) says calculate the sum of the values in grades and store the result in a variable named total. The function call sum(grades) asks a question, and in Python (like most other programming languages) we write the question on the right side of the = sign, and the place to put the answer goes on the left side of the = sign. But your code has that backwards.

Answer 3

You are assigning a value to the return value of inbuilt function which is not possible..Try this

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(grades):
    total = 0
    total = grades.sum()
    total = total.float()
    total = total / len(grades)
    return total