Python Inventory Dictionary Text Game

Question

I use Anaconda 3 > Python 3 > Spyder 3. I am currently working on a text based survival game. I am using a dictionary for my inventory. I have figured out how to add and remove items from my inventory, but I have some def blablabla(): used in my game market for buying and selling items. The problem is, I'm not sure if I'm supposed to use def blablabla(): for my market. Most importantly though, when in the def BuyThisStuff(): I use a line of code that is supposed to check if I have enough currency to purchase that thing. That is where I get an error saying: TypeError: '>' not supported between instances of 'str' and 'int' here is my inventory code:

inventory = {'coins':'750',
"Loaf of Bread": "2",
"Bottle of Water": "3",}
def displayInventory(inventory):
    print("Inventory:")
    item_total = (inventory.values())
    item_total = sum(map(int, item_total))
    for k, v in inventory.items():
        print(v + '   ' + k)
    print("Total number of items: " + str(item_total))
displayInventory(inventory)

To add an item to my inventory I use:

inventory['Rock'] = '3'

To remove:

del inventory['Rock']

Here is the error code:

def MarketBuyFishingRod ():
    global coins
    if inventory['coins':] > 299:
        inventory['coins'] = inventory['coins'] - 300
        print ("You have bought a fishing rod for 300 coins!")
        time.sleep(1)
        print ("Now in your inventory you have:")
        #inventory = inventory + ["Loaf of Bread", ]
        inventory['Fishing Rod'] = '1'
        print (inventory)
        InvFishingRod = True
     else:
        print ("You need to have at least 300 coins to buy a Fishing Rod!")

(Error is in line 3)

if inventory['coins':] > 299:

As shown in the inventory code, you start with 750 coins. Now I need def MarketBuyFishingRod (): to check if the player has over 299 coins in their inventory. Unfortunately this raises an error I do not know how to fix. Please Reply and help me, I would really appreciate your help. If you need any extra info reply and I will answer.

Answer 1

ANSWER: For dictionary inventories, such as inventory = {'Coins' = '42', 'Loaf Of Bread' = '2',} , make sure to change the values to ints: 'Coins' = 42, 'Loaf Of Bread' = 2 . If you are going for looks and want your inventory to look like this: 42 Gold Coins 1 Rope 6 Torches , and not like this: {'Coins' = 42, 'Loaf Of Bread' = 2} , add this code into your inventory(recommend putting this into an inventory def():) for k,v in inventory.items(): print("{} {}".format(v, k))