Codecademy export

script.py

students = [lloyd, alice, tyler]
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)
print 5/2
def get_average(student):
  homework = average(student["homework"]) * float(0.1)
  quizzes = average(student["quizzes"]) * float(0.3)
  tests = average(student["tests"]) * float(0.6)
  return homework + quizzes + tests
def getlettergrade(score):
	if score>=90:
		return "A"
	elif score>=80:
		return "B"
	elif score>=70:
		return "C"
	elif score>=60:
		return "D"
	else:
		return "F"

def getclassaverage(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))