8/9 Solution w/Explanation Part 2

Ok, we’re on! Let’s proceed to the second step of the instruction. For those who just joined, the first part is here: http://www.codecademy.com/forum_questions/531778f1548c35a18c004647

2. First, make an empty list called results.

I really hope that you have it figured out, but just in case:

results = []

Again, this is what you should have at the end of this step:

students = [lloyd, alice, tyler]
def get_class_average(students):
    results = []

3. For each student item in the class list, calculate get_average(student) and then call results.append() with that result.

This is a tricky one. It mentions a class list, but there’s no such list in our code. What is really meant in this instruction point is the students list. Apart from that little comment, there isn’t much to do here. Just follow the instruction.

Here’s what you should get:

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

We go thought the students list, calculate an average for each student using the previously defined get_average(student) function, and append this average to the results list using .append()

4. Finally, return the result of calling average() with results.

Once again, just do what it tells you to do here. For now, your results list isn’t empty anymore, it contains the average grades for each of the students. So now you get the average grade for all of your students using the previously defined average() function.

By following this step-by-step “guide”, you’re definitely going to pass this exercise. To sum up, here’s how your code should look when you’re done (just the part that you write in this exercise):

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

Good luck and feel free to ask questions! Hope this helps!