How is everybody doing


#1



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


The Console shows following error:
B
83.8666666667
Traceback (most recent call last):
File "python", line 55, in
TypeError: 'function' object has no attribute 'getitem'


I don't understand what is wrong with this code, as the exercise is completed and , still an error exist.
What is the wrong in the code can anybody elaborate on this...


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!
students =[lloyd,alice,tyler]
def average(numbers):
    total = sum(numbers)   
    return float(total)/len(numbers)
        
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)
    
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"
        
result=get_letter_grade(get_average(lloyd))
print result

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

#2

some corner cases can get through the exercise validation, here:

print get_letter_grade(get_class_average[students])

get_class_average is a function call, why would you use square brackets?


#3

O thanks @stetim94 it didn't caught my eye...thanks a lot...
Now it is successful


#4