python practice project

5.6.1 Item list for fun games

You are creating a fun video game. The data structure used to model the player's inventory is a dictionary. Where the key is a string describing the item in the inventory, and the value is an integer indicating how many of the item the player has. For example, a dictionary value of {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12} means the player has 1 rope, 6 torches, 42 gold coins, etc. Write a function called displayInventory() that takes any possible inventory and displays it like this:

Inventory:
1 rope
42 gold coin
6 torch
1 dagger
12 arrow
Total number of items: 62

The code is:

spam = {'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 = item_total + v
    print('Total number of items: ' + str(item_total))
displayInventory(spam)    

5.6.2 List-to-dictionary functions for lists of fun game items

Suppose a government train's loot is represented as a list of strings like this:

dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']

Write a function called addToInventory(inventory, addedItems), where the inventory parameter is a dictionary representing the player's item list, and the addedItems parameter is a list, just like draonLoot.

The addToInventory() function should return a dictionary representing the updated inventory. Note that a list can contain multiple identical items.

code show as below:

def displayInventory(inventory):
    print ('Inventory:')
    item_total = 0
    for k, v in inventory.items():        print(str(v) + ' ' + k)        item_total = item_total + v    print('Total number of items: ' + str(item_total))​def addToInventory(inventory, addedItems):    for item in dragonLoot:        if item not in inventory.keys():            inventory.setdefault(item, 1)        else:            inventory[item] += 1      inv = {'gold coin': 42, 'rope': 1}dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']inv1 = addToInventory(inv,dragonLoot)print(inv)displayInventory(inv)   











     

The result is shown below:

{'gold coin': 45, 'rope': 1, 'dagger': 1, 'ruby': 1}
Inventory:
45 gold coin
1 rope
1 dagger
1 ruby
Total number of items: 48
​