6/9 Why this code works?


#1

The code below works and lets me pass just fine but I don't understand why it works. There is no call to the function get_average(student) that passes a list. How is the function get_average(student) executed if there is no call to it and no list argument passed to it?

To me (coming from Delphi) this should not work but it does:

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


#2

The built-in test calls it, so you don't have to so you can pass even if you don't put a call there.


#3

Thank you, zeziba!
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#4

Thank you, zeziba!!!!