How can a user remove something from a dictionary - Python 3 [duplicate]

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• Removing items randomly from a dictionary 6 answers

This is just a start to setting up a little shop. I created a dictionary that has the shops inventory, and their price.

Now I want the user to choose one of the items to buy. As you can see I've just started on the if statement. Any idea how I can basically say - if user selects an item from the dictionary, remove this from the dictionary, add the item to the user inventory, and remove that much gold from their wallet?

user_inventory = []
shop_inventory = {'kettle:':3,'lunchbox:':4,'squirrel:':1}
user_wallet = 10
shopping = True

def inventory():
    for i in shop_inventory:
        print(i, shop_inventory[i],'gold')
while shopping == True:
    print('We have: ')
    inventory()
    print('You have: ',user_wallet,' gold.')

    user_choice = input('What would you like to buy? ')
    if user_choice == shop_inventory():
        print('Huzzahhh')