List logic

[Low_Ki_]

for item in dragonLoot:
    stuff[item] = stuff.get(item, 0) + 1

This works better with a defaultdict, then you can just add one to the key directly, without having to do the get with a default value of zero.

tried it and this happens:

stuff = {'rope' : 1, 'torch' : 6, 'gold coin' : 42, 'dagger' : 1, 'arrow' : 12}

def displayInventory(inventory):
    print('Inventory:')
    item_total = 0
    for k, v in inventory.items():
        print(str(v) + ' ' + k)
        item_total += v
    print('Total number of items: ' + str(item_total))

def addToInventory(inventory, addedItems):
    for item in addedItems:
        inventory[item] = inventory.get(item, 0) + 1


dragonLoot = ['gold coin', 'dagger', 'gold coin', 'ruby']
stuff = addToInventory(stuff, dragonLoot)
displayInventory(stuff)

Error:
/usr/bin/python3.5 /root/PythonProjects/AutomateTheBoringStuff/inventory.py
Inventory:
Traceback (most recent call last):
  File "/root/PythonProjects/AutomateTheBoringStuff/inventory.py", line 18, in <module>
    displayInventory(stuff)
  File "/root/PythonProjects/AutomateTheBoringStuff/inventory.py", line 6, in displayInventory
    for k, v in inventory.items():
AttributeError: 'NoneType' object has no attribute 'items'

Process finished with exit code 1

Something like this is what I was thinking???

def addToInventory(inventory, addedItems):
    for item in addedItems:

        if item in inventory.keys():
            inventory[item] += 1
            print(inventory)
            return inventory

        elif item not in inventory.keys():
            inventory[item] = 1
            print(inventory)
            return inventory




dragonLoot = ['gold coin', 'dagger', 'gold coin', 'ruby']
stuff = addToInventory(stuff, dragonLoot)

When i add return inventory to the function it doesn't add all the inventory in dragonLoot:

stuff = {'rope' : 1, 'torch' : 6, 'gold coin' : 42, 'dagger' : 1, 'arrow' : 12}

def displayInventory(inventory):
    print('Inventory:')
    item_total = 0
    for k, v in inventory.items():
        print(str(v) + ' ' + k)
        item_total += v
    print('Total number of items: ' + str(item_total))

def addToInventory(inventory, addedItems):
    for item in addedItems:
        inventory[item] = inventory.get(item, 0) + 1
        return inventory


dragonLoot = ['gold coin', 'dagger', 'gold coin', 'ruby']
stuff = addToInventory(stuff, dragonLoot)
displayInventory(stuff)

Output:
/usr/bin/python3.5 /root/PythonProjects/AutomateTheBoringStuff/inventory.py
Inventory:
1 rope
43 gold coin
12 arrow
6 torch
1 dagger
Total number of items: 63

Process finished with exit code 0