TypeError: unsupported operand type(s) for +: 'int' and 'str'


#1

Apparently my code is failing in the average function, but I can't figure out why :expressionless:

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

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


#2

You did not indent you code, with

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

it let's me pass.


#3

Sorry, I was copy/pasting and forgot to re-indent. It is indented properly in my exercise.

Edit: Apparently I cannot indent it properly in this editor :expressionless:


#4

Oh, your error is in the get_average function:

tests = average(["tests"])

You forgot to reference the students dictionary.


#5

Spot on - cheers mate :wink: