# Step 1: Define the list of products

products = ["t-shirt", "mug", "hat", "book", "keychain"]

# Step 2: Create an empty dictionary for inventory

inventory = {}

# Step 3: Ask the user to input the quantity of each product available in the inventory

print("Enter the quantity for each product:")

for product in products:

quantity = int(input(f"Quantity for {product}: "))

inventory[product] = quantity

# Step 4: Create an empty set for customer orders

customer_orders = set()

# Step 5: Ask the user to input the name of three products that a customer wants to order

print("Enter the name of three products that a customer wants to order:")

for _ in range(3):

product_order = input("Product name: ").strip()

if product_order in products:

customer_orders.add(product_order)

else:

print(f"{product_order} is not available. Please choose from {products}.")

# Step 6: Print the products in the customer_orders set

print("\nCustomer Orders:")

for order in customer_orders:

print(order)

# Step 7: Calculate order statistics

total_products_ordered = len(customer_orders)

percentage_ordered = (total_products_ordered / len(products)) * 100

order_status = (total_products_ordered, percentage_ordered)

# Step 8: Print the order statistics

print("\nOrder Statistics:")

print(f"Total Products Ordered: {order_status[0]}")

print(f"Percentage of Products Ordered: {order_status[1]:.2f}%")

# Define the update_inventory function

def update_inventory(customer_orders):

for customer_order in customer_orders:

inventory[customer_order] = inventory[customer_order] - 1

# Step 9: Update the inventory by calling the update_inventory function

update_inventory(customer_orders)

# Step 10: Print the updated inventory

print("\nUpdated Inventory:")

for product, quantity in inventory.items():

print(f"{product}: {quantity}")

def calculate_total_price(customer_orders):

total_price = 0

for product in customer_orders:

valid_input = False

while not valid_input:

try:

price=int(input("Enter the price of {}: ".format(product)))

if price <= 0:

print("Invalid input")

elif price > 0:

valid_input = True

total_price += price

except ValueError:

print("Enter a valid price")

return total_price

customer_orders=('book', 'hat', 'mug')

total=calculate_total_price(customer_orders)

print(total)

def get_customer_orders(inventory):

customer_orders=set()

for product in range(5):

valid_input = False

while not valid_input:

try:

x= input("Enter the product you want to order:")

if x not in inventory:

print(f"{x} is not available. Please choose from {inventory}.")

elif inventory[x]==0:

print("Stock unavailable")

else:

valid_input = True

y=customer_orders.add(x)

except ValueError:

print("Enter a valid input")

return y

inventory = {'t-shirt': 100, 'mug': 0, 'hat': 100, 'book': 100, 'keychain': 100}

get_customer_orders(inventory)

help(list)