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Andrew Bickham
1,461 PointsInventory
class Item:
def __init__(self, name, description, *args, **kwargs):
self.name = name
self.description = description
for key, value in kwargs.items():
setattr(self, key, value)
def __str__(self):
return '{}: {}'.format(self.name, self.description)
class Inventory(Item):
def __init__(self):
super().__init__("cheese", "cheesey")
self.slots = []
def __add__(self, item):
self.slots.append(items)
def __len__(self):
return len(self.slots)
def __contains__(self, item):
return item in self.slots
def display(self, item):
print(item in inventories)
I was trying to display all the items that were passed into self.slots but no matter what I try all it returns in NONE, and im not sure why, if someone could please advise.... I do appreciate it
3 Answers
Chris Freeman
Treehouse Moderator 68,441 PointsNot sure of your goal, you could use:
# display all items:
def display(self):
print(self.slots)
# OR, print only if item in slots
def display(self, item):
if item in self:
print(item)
# add else for what happens
# if item not found
Post back if you need more help. Good luck!!!
Andrew Bickham
1,461 Pointsmy apologies i kinda posted this in a rush, but i was messing around with kenneth's coding, i wanted to make it where someone could pass in multiple items into self.slots and then was able to see(display), everything they had passed in; i keep getting NONE returned every time i tried to view everything that was passed in to self.slots and of course i was curious to why, sorry for any confusion
Chris Freeman
Treehouse Moderator 68,441 PointsThe __add__ method has no return statement so the default is return None.
To see what was added you could print or return the item from the __add__ method
If you wanted to handle multiple items added at once, you would need logic to check if item isinstance of str (then add it), if not string then loop through item adding each member. If you were to loop over item when it was a string then each character would be added.
Is this what you were looking for?
Andrew Bickham
1,461 Pointsyes thank you, once again my apologies for the confusion