7/9 below is my code it shows "TypeError: string indices must be integers, not str"


#1
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 = average(student["homework"])
  homework1= average(student["quizzes"])
  homework2 = average(student["tests"])
  return (0.1*homework + 0.3*homework1 + 0.6*homework2)

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('llyod'))

#2

Hi @pypro76543,

There are a couple of problems here …

print get_letter_grade(get_average('llyod'))

Are you passing a variable to the function? Also check the spelling.


#3

i am not able to figure it out


#4

You need to pass the lloyd dictionary to the get_average function, but you have quotes in the argument. There is also a difference in spelling.


#5

yeah, i got it . I am supposed to send a variable as argument for get_average().
thank you


#6