How is Everybody Doing? - Error when everything is ok?


#1



https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/5?curriculum_id=4f89dab3d788890003000096


Error: Oops, try again. Did you remember to print the letter grade for the class's average?


I don't understand why it gives me that error message when i get:
"83.8666666667
A
None" in the console.


Replace this line with your code. 
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) / len(numbers)
    return total
    
def get_average(student):
    homework = average(student['homework']) * 0.10 + average(student['quizzes']) * 0.30 + average(student['tests']) * 0.6
    return homework
    
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'
        


students = [lloyd, alice, tyler]
results = []
def get_class_average(students):
    for student in students:
        results.append(get_average(student))
    return average(results)
    
print get_class_average(students)
print get_letter_grade(results)


#2

This list should be initialized inside the function, else it does not get reset and carries values over from earlier calls.

result = get_class_average(students)
print get_letter_grade(result)

See if the above approach returns a B.


#3

Still gives me an error: Oops, try again. Did you remember to print the letter grade for the class's average?

Here's updated code:
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) / len(numbers)
return total

def get_average(student):
homework = average(student['homework']) * 0.10 + average(student['quizzes']) * 0.30 + average(student['tests']) * 0.6
return homework

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'

students = [lloyd, alice, tyler]

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

print get_class_average(students)
print get_letter_grade(result)


#4

NEVERMIND... i got it :smile: I misunderstood what you meant i the beginning. Thanks for the help.


#5

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