7. Sending a Letter


#1



https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/3?curriculum_id=4f89dab3d788890003000096


Please pardon me if any of this is formatted incorrectly, this is my first post :slight_smile: .
I am on "Student Becomes the Teacher" lesson 7. Sending a Letter. It is linked above.

When I print my code I receive the following error message "Oops, try again. get_letter_grade(89) returned 'A' instead of 'B' as expected."


My code seems to be returning the incorrect letter grade; however, when I print get_average(lloyd) I see 80.55. I am unsure why my code interpreting 80.55 as an "A". I have looked through similar posts and have been unable to find my error!


    "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 average(numbers):
    total = sum(numbers)
    total = float(total)
    result = total/len(numbers)
    return result
    
def get_average(student):
    homework = average(student['homework'])
    quizzes = average(student['quizzes'])
    tests = average(student['tests'])
    
    homework = homework*0.1
    quizzes = quizzes*0.3
    tests = tests*0.6
    return homework+quizzes+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))




#2

you made score a string, why? look:

def get_letter_grade(score):
    print score # will print lloyd score
    print 'score'  # will print string score

print get_letter_grade(get_average(lloyd))

score (without apostrophe) is the function parameter contain the argument you supply when calling the function, 'score' is just a string


#3

Well, that was it, thank you much!


#4