Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Inheritance Super!

Callum Anderson
seal-mask
.a{fill-rule:evenodd;}techdegree
Callum Anderson
Data Analysis Techdegree Student 10,200 Points
Posted by Callum Anderson
.a{fill-rule:evenodd;}techdegree
Callum Anderson
Data Analysis Techdegree Student 10,200 Points

3/3 list sort task.

I feel like the sort should go inside the dunder method. I'm not getting any errors towards syntax but I could be wrong in many senses of the task

inventory.py 
class Inventory:
    def __init__(self):
        self.slots = []
        self.slots.sort(item)

    def add_item(self, item):
        self.slots.append(item)

class SortedInventory(Inventory):
    def add_item(self, item):
        super().add_item(item)

2 Answers

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

The instructions say specifically to put the sort "In the SortedInventory's add_item method".

The sorting is the main purpose of this new class. No changes should be made to the original "Inventory" class.

seth schwan
seth schwan
1,488 Points
seth schwan
seth schwan
1,488 Points

Part 2 asks you to add items into the "slots" list. Which looks like this:

Inventory.py

class Inventory:
    def __init__(self):
        self.slots = []

    def add_item(self, item):
        self.slots.append(item)

class SortedInventory(Inventory):
    def add_item(self, item):
        super().add_item(item)
        self.slots.append(item)

In part 3, you actually have to replace the "self.slots.append(item)" with "self.slots.sort()". Rather than adding "self.slots.sort()" to the already existing code from the previous part of the challenge. It took me a while to figure this out. Hope that helps :)