8/9 Student Becomes The Teacher


#1

<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>

<Below this line, add a link to the EXACT exercise that you are stuck at.>
https://www.codecademy.com/courses/learn-python/lessons/student-becomes-the-teacher/exercises/part-of-the-whole?action=lesson_resume

<In what way does your code behave incorrectly? Include ALL error messages.>
Make sure you have defined get_class_average

<What do you expect to happen instead?>
I don’t know what I am doing here. I feel like I have clearly defined what get_class_average is, but the code seems to disagree. Could anyone shed light on this? And this isn’t a one time thing, I keep having this error message repeat even after changing the code somewhat.


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)
  am = total / len(numbers)
  return am

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"
  
  class_list = [lloyd, alice, tyler]
  
  def get_class_average(class_list):
    results = []
    for student in class_list:
      results.append(get_average(student))
    return average(results)
  
print get_letter_grade(get_average(lloyd))

#2

but your get_class_average function is part of your get_letter_grade function, why?

get_class_average should be outside/after your get_letter_grade function, same goes for your class_list, the class_list should have a global scope


#3

Didn’t see that, thank you, it works now.


#4