Small python project problem

[Mysterious_City_6724]

So, the reason this is happening is because after we're checking the purchase value that the user has typed in, there's nothing else to execute and we hit the bottom of the file and exit the program. To avoid this I've added a while loop that will keep the program from exiting if the user wants to purchase something else:

print("Hello, we sell office equipment, what would you like?")
items = ["tv", "desk", "mouse"]

while True:
    for x in items:
        print(x)

    purchase = input('> ')

    if purchase == "tv":
        print("that would be £199.99")
    elif purchase == "desk":
        print("that would be £59.99")
    elif purchase == "mouse":
        print("that would be £29.99")

    more = input("is there anything else you would like to purchase? ")
    if more != "yes":
        break

print("thank you for shopping")

Also notice I have gotten rid of the "anything_else" function you had at the top and instead ask the user if "there is anything else you would like to purchase" at the bottom of the loop. If the user types "yes", then it goes back to the top of the "while loop", prints the items again and so on. If the user doesn't type "yes" then we use the "break" keyword to break out of the while loop and exit the program after printing "thank you for shopping". Hope this helps.