8 - Part of the whole


#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)
total= total/len(numbers)
return total
def get_average(student):
homework = 0.1*average(student["homework"])
quizzes = 0.3*average(student["quizzes"])
tests = 0.6*average(student["tests"])
total = homework + quizzes + tests
return total
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(lloyd))
def get_class_average(students):
students = [lloyd,alice,tyler]
results=[]
for item in students :
average= return get _average(student)
results.append(average)
return results

# it returns File "python", line 48
average= return get _average(student)
^
SyntaxError: invalid syntax.Some body help me with the correct code please.


#2

@aliyu123,
Re-edit your Post,

  • select your code
  • =click= on the </>-editor-symbol

Present your code with the correct indentation....

A def should be ended with a blank-line..


#3

To get an idear of what is needed
example
If you are looking for an explanation on syntax / usage
google search
[your-question] site:python.org


#4

Hi All,

Below is my code. It comes up with the error

Oops, try again.
get_class_average([alice]) resulted in an error: list indices must be integers, not str

I just cannot get this to work! can anyone help?

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 = sum(numbers)
total = float(total)
total = total / len(numbers)
return total

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

total = (homework * 0.1) + (quizzes * 0.3) + (tests * 0.6)
return total

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(lloyd))

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

#5

I managed to get it to work. The big thing is that you can't use the word "class." I believe it already has a significance in Python.

students = [lloyd, alice, tyler]

def get_class_average(students):
    results = []
    for item in students:
        avg = get_average(item)
        results.append(avg)
    return average(results)

#6

tnc for the help guru minanil


#7

am getting the same error.. please help...
"Oops, try again. 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]
}

Add your function below!

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

def get_average(student):
homework = 0.1 * average(student["homework"])
quizzes = 0.3 * average(student["quizzes"])
tests = 0.6 * average(student["tests"])
return homework + quizzes + 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"

students = [lloyd, alice, tyler]

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


#8

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)
total= total/len(numbers)
return total
def get_average(student):
homework = 0.1*average(student["homework"])
quizzes = 0.3*average(student["quizzes"])
tests = 0.6*average(student["tests"])
total = homework + quizzes + tests
return total
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(lloyd))

def get_class_average(students):
students =[lloyd,alice,tyler]
results = []
for student in students:
avg = get_average(student)
results.append(avg)
return average(results)

it returns Oops, try again. get_class_average([alice]) returned 80.55 instead of 91.15 as expected what again please.