8. Part of a Whole Students Becomes the Teacher

#1

Whats wrong with my code, I just can't get my head around it??

The error comes up with 'get_class_average([alice]) resulted in an error: list indices must be integers, not str '

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]
}

def average(numbers):
total = float(sum(numbers))
result = total / float(len(numbers))
return result

def get_average(student):
homework = average(student['homework'])
quizes = average(student['quizzes'])
tests = average(student['tests'])
grade = (.1 * homework) + (.3 * quizes) + (.6*tests)

if score >= 90:
return "A"
elif score >= 80:
return "B"
elif score >= 70:
return "C"
elif score >= 60:
return "D"
else:
return "F"

def get_class_average(students):
results = []
for student in students:
results.append(get_average(students))
print average(results)

#2

`student`, singular.

#3

I'm not sure what you mean ?

#4

`students` is a list. `get_average` takes a dictionary. Your loop is iterating through the students list but passing the entire list, rather than one student identifier at a time.

#5

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