Part of the Whole: Help?


#1



https://www.codecademy.com/courses/python-beginner-en-qzsCL/1/4?curriculum_id=4f89dab3d788890003000096


File "python", line 50
SyntaxError: can't assign to literal
Oops, try again. There seems to be something wrong with your code, see the console window for the error message!

Have hit a bit of a wall. Do not know what "can't assign to literal" means. Could someone explain?

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)
    total = total / len(numbers)
    return total
    
def get_average(student):
    homework = average(student["homework"])
    quizzes = average(student["quizzes"])
    tests = average(student["tests"])
    return 0.1 * average(student["homework"]) + \
    0.3 * average(student["quizzes"]) + \
    0.6 * average(student["tests"])
    
def get_letter_grade(score):
    if score >= 90:
        return "A"
    elif score >= 80:
        return "B"
    elif score >= 70:
        return "C"
    elif score >= 60:
        return "D"
    else:
        return "F"
    
print get_letter_grade(get_average(alice))

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


#2

here:

"results" = []

why is results a string?


#3

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