Write a program that keeps track of inventory

Here’s a simple Python program that tracks inventory:

# Define initial inventory

inventory = 100 # Predefined number of items in inventory

while inventory > 0:

print(f"Current inventory: {inventory}")

try:

# Ask user for the number of items they want to buy

items_to_buy = int(input("Enter the number of items to buy: "))

# Check if there are enough items in inventory

if items_to_buy <= inventory:

inventory -= items_to_buy # Update inventory

print(f"Purchase completed. {items_to_buy} items bought.")

else:

print("There isn't enough inventory.")

except ValueError:

print("Please enter a valid number.")

# Notify the user when inventory is empty

if inventory == 0:

print("All out!")

### Explanation:
1. Initial Inventory: The program starts with a predefined number of items (100 in this case).
2. Loop: It runs a loop while there are items in the inventory.
3. User Input: It prompts the user to enter how many items they want to buy.
4. Check Inventory: If there are enough items, it updates the inventory; otherwise, it displays a message.
5. End of Inventory: When the inventory reaches zero, it prints “All out!”.

Feel free to ask more questions or check the extended services for further help!

STARTING_ITEMS_IN_INVENTORY = 20

num_items = STARTING_ITEMS_IN_INVENTORY

while num_items > 0:
print(“We have ” + str(num_items) + ” items in inventory.”)
buy_num = int(input(“How many would you like to buy? “))

if buy_num <= num_items:
num_items -= buy_num
print(“Now we have ” + str(num_items) + ” left.”)
else:
print(“There is not enough in inventory for that purchase.”)

print(“All out!”)