String indices must be integer not string


#1

https://www.codecademy.com/en/courses/python-beginner-en-qzsCL/1/5

i was also getting the same error but now it is showing but now i am getting this string indices must be integer not string


How is Everybody Doing?
#2

Now the question is what index, and what string?


#3

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

/home/amith/Pictures/Screenshot from 2017-04-05 06-39-57.png


#4


#5

Please copy and paste your code here. Screenshots don't really offer much, especially given we cannot see all the code.


#6

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)
    result=total/len(numbers)
    return result
def get_average(student):
    homework=0.1*average(student["homework"])
    quizzes=0.3*average(student["quizzes"])
    tests=0.6*average(student["tests"])
    result=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)) 
print get_letter_grade(get_average(alice)) 
print get_letter_grade(get_average(tyler))

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(get_class_average(students))

#7

This needs to be returned.


#8

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