Part of the Whole


#1



regarding get_class_average
When someone has a moment may I get a bit of guidance? I'm sure there's something foolish Im doing here but Im have difficulty identifying what it is. Huge thanks in advance

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


Receiving the following error:
"Oops, try again. get_class_average([alice]) resulted in an error: 'tuple' object has no attribute 'append'


From my understanding this should return the average of all students' scores combined.


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 = float(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(lloyd))

def get_class_average(students):
    results = ()
    for student in students:
        results.append(get_average(student))
    return average(results)


#2

replace your get_class_average function with:
"def get_class_average(students):
results=[]
for student in students:
get_average(student)
results.append(get_average(student))
return average(results)

students = [lloyd,alice,tyler]
print get_class_average(students)"


#3

To define a list we use square brackets [].
The parentheses () allow to define a tuple which is another type of data structure.

For more, look at here


#4

@mustafasakhai @konaesan
Truely grateful for the guidance and constructive criticism. The reference link is also very helpful.
Appreciate you both.


#5

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