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!

Sabine Lazuhina
Sabine Lazuhina
2,334 Points

Overriding methods from the super class

I thik i did everything correct in the syntax but still my solution is not accepted.

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(self, item)
Tonya Fowler
Tonya Fowler
10,473 Points

Everything seems correct. There is a space between SortedInventory and (Inventory). Try removing it and running again.

2 Answers

Steven Parker
Steven Parker
231,271 Points

When you call the parent class "add_item" method, you don't need to pass "self" explicitly:

        super().add_item(item)
Richard Li
Richard Li
9,751 Points

Here you don't need to put self in the super().add_item(item)