Part of the Whole - What's wrong with my code?


#1

https://www.codecademy.com/courses/learn-python/lessons/student-becomes-the-teacher/exercises/part-of-the-whole?action=lesson_resume

Hello,

I’m stuck at “Part of the Whole” of Unit 8 and still don’t know why I’m always getting this error message:

get_class_average([alice, lloyd]) returned 91.15 instead of 85.85 as expected

I expected the code to work. I followed each step of this unit as concrete as possible… Any help would be much appreciated!



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)
  return total/len(numbers)

def get_average(student):
  homework = average(student["homework"])
  quizzes = average(student["quizzes"])
  tests = average(student["tests"])
  return sum([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"

print get_letter_grade(lloyd)

def get_class_average(class_list):
  results = []
  for student in class_list:
    result = get_average(student)
    results.append(result)
    return average(results) 



#2

return should not be inside the loop block.


#3

Geez, thanks a lot! Can’t believe I’ve overseen this completely…


#4

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