How is Everybody Doing?


#1

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

Keeps giving the error below after adding the last three lines of code. Works for when I use single dictionaries, eg lloyd or alice or tyler. But the moment I use more than one, it flips.

Traceback (most recent call last):
File "python", line 62, in
File "python", line 57, in get_class_average
NameError: global name 'student' is not defined

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)
    results = total/len(numbers)
    return results
    

def get_average(student):
    homework = average(student["homework"])
    quiz = average(student["quizzes"])
    tests = average(student["tests"])
    h_mark = 0.1 * homework
    q_mark = 0.3 * quiz
    t_mark = 0.6 * tests
    grade = float(h_mark + q_mark + t_mark)
    return grade

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 item in students:
        get_average(student)
        results.append(get_average(student))
    return average(results)

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

#3

Hi. I checked through all the lessons, and I am not sure what function you are referring to.


#4

I don't know what @bandit was talking about either, the problem with your code appears to be right here:

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

You loop through each item in students and then proceed to refer to them as student throughout the rest of the function.

Also, consider changing:

        get_average(student)
        results.append(get_average(student))

to just

        results.append(get_average(student))

You don't really need the extra get_average(student).


#5

When I take out the line, it outputs the error:
B
Traceback (most recent call last):
File "python", line 61, in
File "python", line 57, in get_class_average
File "python", line 30, in get_average
TypeError: list indices must be integers, not str


#6

Would you mind posting your updated code, please.


#7

Make sure your get_class_average() function looks like this:

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

#8

Ok, I deleted the wrong line, but evenso, it still outputs the error message:
Traceback (most recent call last):
File "python", line 61, in
File "python", line 57, in get_class_average
NameError: global name 'esults' is not defined

///
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)
results = total/len(numbers)
return results

def get_average(student):
homework = average(student["homework"])
quiz = average(student["quizzes"])
tests = average(student["tests"])
h_mark = 0.1 * homework
q_mark = 0.3 * quiz
t_mark = 0.6 * tests
grade = float(h_mark + q_mark + t_mark)
return grade

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 item in students:
esults.append(get_average(student))
return average(results)

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

///


#9

You're still looping using item instead of student...

As I previously said,


#10

Thank you soooooooooo Much!!! It has finally worked!!!!!!!!!


#11

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