Gwith

inventory = {'gold coin': 42, 'rope': 1}
addedItems = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']

for item in addedItems:

    if item in inventory:
        inventory[item] += 1
    else:
        inventory[item] = 1
print(inventory)

Gwith

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

inv = {'gold coin': 42, 'rope': 1}
dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']
addToInventory(inv, dragonLoot)

Gwith

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

inv = {'gold coin': 42, 'rope': 1}
dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']
addToInventory(inv, dragonLoot)

Gwith

def addToInventory(inventory, addedItems):
    for item in addedItems:
        #Add dragonLoot to inv
    print(inventory)

inv = {'gold coin': 42, 'rope': 1}
dragonLoot = { 'gold coin' : 3, 'dagger' : 1, 'ruby' '1' }
inv = addToInventory(inv, dragonLoot)

Gwith

def append_twice_okay(a_list, val):
   """mutates argument."""
   a_list.append(val)
   a_list.append(val)

def append_twice_good(a_list, val):
   """returns new list."""
   return a_list + [val, val]

Gwith

inv = {'gold coin':42, 'rope':1}
dragonLoot = {'gold coin' : 3, 'dagger' : 1, 'ruby' : 1}

def add_to_inventory(inventory, added_items):
    for item in (added_items):
      #code goes here
    print(inventory)
add_to_inventory(inv, dragonLoot)

Gwith

inv = {'gold coin':42, 'rope':1}
dragonLoot = {'gold coin' : 3, 'dagger' : 1, 'ruby' : 1}

def add_to_inventory(inventory, added_items):
    for item in (added_items):
      inventory.update(item)
    print(inventory)

add_to_inventory(inv, dragonLoot)

Gwith

inv = {'gold coin':42, 'rope':1}
dragonLoot = {'gold coin' : 3, 'dagger' : 1, 'ruby' : 1}

def add_to_inventory(inventory, added_items):
    inventory.update(added_items)
    print(inventory)

add_to_inventory(inv, dragonLoot)

Gwith

inv = {'gold coin':42, 'rope':1}
dragonLoot = {'gold coin' : 3, 'dagger' : 1, 'ruby' : 1}

def add_to_inventory(inventory, added_items):
    inventory = dict(list(inventory.items()) + list(dragonLoot.items()))
    print(inventory)

add_to_inventory(inv, dragonLoot)

Gwith

inv = {'gold coin':42, 'rope':1}
dragonLoot = {'gold coin' : 3, 'dagger' : 1, 'ruby' : 1}

def add_to_inventory(inventory, added_items):
    for item in added_items:
        inventory[item] = inventory.get(item, 0) + 1
    print(inventory)

add_to_inventory(inv, dragonLoot)