9/9 "One of the following is missing or broken when we tried to use it: alice, lloyd, tyler, students, get_class_average, get_letter_grade"


#1

HI! I have been following these python tutorials and I am now stuck.

Here is my 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]
    }
    
    def get_average(student):
        homework = average(student["homework"])
        quizzes = average(student["quizzes"])
        tests = average(student["tests"])
        return 0.1 * homework + 0.3 * quizzes + 0.6 * tests
        
    students = ["lloyd","alice","tyler"]
        
    def get_letter_grade(score):
        if (score >= 90):
            return "A"
        elif (score >= 80 and score < 90):
            return "B"
        elif (score >= 70 and score < 80):
            return "C"
        elif (score >= 60 and score < 70):
            return "D"
        else:
            return "F"
    for student in students:
        print get_letter_grade(get_average(student))
    
    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(get_class_average(students))

#2

Hi @pixel_craft554 ,

You have ...

students = ["lloyd","alice","tyler"]

... but students should be a list of the three variables that refer to the dictionaries for each student. Instead, the above is a list of three strings. This is what is needed ..

students = [lloyd, alice, tyler]

#3

I have taken your advice yet it still has not worked for me @appylpye


#4

I have realised that my average function was missing so I added it back in, however, this still hasn't fixed the problem! :sob:


#5

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

try to write it like this,for me its working


#6

Thanks, it is now working!