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281 changes: 281 additions & 0 deletions .ipynb_checkpoints/lab-python-functions-checkpoint.ipynb
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"source": [
"# Lab | Functions"
]
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"## Exercise: Managing Customer Orders with Functions\n",
"\n",
"In the previous exercise, you improved the code for managing customer orders by using loops and flow control. Now, let's take it a step further and refactor the code by introducing functions.\n",
"\n",
"Follow the steps below to complete the exercise:\n",
"\n",
"1. Define a function named `initialize_inventory` that takes `products` as a parameter. Inside the function, implement the code for initializing the inventory dictionary using a loop and user input.\n",
"\n",
"2. Define a function named `get_customer_orders` that takes no parameters. Inside the function, implement the code for prompting the user to enter the product names using a loop. The function should return the `customer_orders` set.\n",
"\n",
"3. Define a function named `update_inventory` that takes `customer_orders` and `inventory` as parameters. Inside the function, implement the code for updating the inventory dictionary based on the customer orders.\n",
"\n",
"4. Define a function named `calculate_order_statistics` that takes `customer_orders` and `products` as parameters. Inside the function, implement the code for calculating the order statistics (total products ordered, and percentage of unique products ordered). The function should return these values.\n",
"\n",
"5. Define a function named `print_order_statistics` that takes `order_statistics` as a parameter. Inside the function, implement the code for printing the order statistics.\n",
"\n",
"6. Define a function named `print_updated_inventory` that takes `inventory` as a parameter. Inside the function, implement the code for printing the updated inventory.\n",
"\n",
"7. Call the functions in the appropriate sequence to execute the program and manage customer orders.\n",
"\n",
"Hints for functions:\n",
"\n",
"- Consider the input parameters required for each function and their return values.\n",
"- Utilize function parameters and return values to transfer data between functions.\n",
"- Test your functions individually to ensure they work correctly.\n",
"\n",
"\n"
]
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"cell_type": "code",
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"#1 function to initialize the inventory\n",
"\n",
"def initialize_inventory(products):\n",
" \"\"\"Initializes the inventory dictionary with user-provided quantities.\"\"\"\n",
" inventory = {}\n",
" print(\"Please enter the quantity for each product:\")\n",
" for product in products:\n",
" quantity = int(input(f\"Enter quantity for {product}: \"))\n",
" inventory[product] = quantity\n",
" return inventory"
]
},
{
"cell_type": "code",
"execution_count": 41,
"id": "3cb53531-8f00-4ca1-b0b5-b0b55c1b8899",
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"#2 function to get customer orders\n",
"\n",
"def get_customer_orders():\n",
" \"\"\"Prompts the user for products to order and returns a set of orders.\"\"\"\n",
" customer_orders = set()\n",
" add_another = 'yes'\n",
" print(\"Please enter the name of products a customer wants to order:\")\n",
" while add_another.lower() == 'yes':\n",
" order_item = input(\"Enter a product to order: \")\n",
" customer_orders.add(order_item)\n",
" add_another = input(\"Do you want to add another product? (yes/no): \")\n",
" return customer_orders"
]
},
{
"cell_type": "code",
"execution_count": 42,
"id": "f2bebafe-b83e-4252-8e7e-80b81101b664",
"metadata": {},
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"source": [
"#3 function to update the inventory \n",
"\n",
"def update_inventory(customer_orders, inventory):\n",
" \"\"\"Updates the inventory by subtracting ordered products.\"\"\"\n",
" for product in customer_orders:\n",
" if product in inventory:\n",
" inventory[product] -= 1\n",
" return inventory"
]
},
{
"cell_type": "code",
"execution_count": 43,
"id": "18c6f40b-2fea-4763-8a27-63a183ab71c5",
"metadata": {},
"outputs": [],
"source": [
"#4 function to calculate order statistics\n",
"\n",
"def calculate_order_statistics(customer_orders, products):\n",
" \"\"\"Calculates total products and percentage ordered.\"\"\"\n",
" total_products_ordered = len(customer_orders)\n",
" percentage_ordered = (total_products_ordered / len(products)) * 100\n",
" return total_products_ordered, percentage_ordered"
]
},
{
"cell_type": "code",
"execution_count": 44,
"id": "54c706c7-8791-484f-a928-85a2bdf3c24a",
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"#5 function to print order statistics\n",
"\n",
"def print_order_statistics(order_statistics):\n",
" \"\"\"Prints the order statistics in a formatted way.\"\"\"\n",
" total_products_ordered, percentage_ordered = order_statistics\n",
" print(\"Order Statistics:\")\n",
" print(f\"Total Products Ordered: {total_products_ordered}\")\n",
" print(f\"Percentage of Products Ordered: {percentage_ordered}%\")"
]
},
{
"cell_type": "code",
"execution_count": 45,
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"#6 function to print the updated inventory\n",
"\n",
"def print_updated_inventory(inventory):\n",
" \"\"\"Prints the updated inventory.\"\"\"\n",
" print(\"Updated Inventory:\")\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")"
]
},
{
"cell_type": "code",
"execution_count": 46,
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{
"name": "stdout",
"output_type": "stream",
"text": [
"Please enter the quantity for each product:\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter quantity for t-shirt: 56\n",
"Enter quantity for mug: 586 \n",
"Enter quantity for hat: 34\n",
"Enter quantity for book: 23\n",
"Enter quantity for keychain: 67\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Current Inventory: {'t-shirt': 56, 'mug': 586, 'hat': 34, 'book': 23, 'keychain': 67}\n",
"Please enter the name of products a customer wants to order:\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter a product to order: mug\n",
"Do you want to add another product? (yes/no): yes\n",
"Enter a product to order: keychain\n",
"Do you want to add another product? (yes/no): yes\n",
"Enter a product to order: book\n",
"Do you want to add another product? (yes/no): no\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Products in customer order: {'mug', 'keychain', 'book'}\n",
"Order Statistics:\n",
"Total Products Ordered: 3\n",
"Percentage of Products Ordered: 60.0%\n",
"Updated Inventory:\n",
"t-shirt: 56\n",
"mug: 585\n",
"hat: 34\n",
"book: 22\n",
"keychain: 66\n"
]
}
],
"source": [
"#7 main program execution flow\n",
"\n",
"if __name__ == \"__main__\":\n",
" products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
" # Call the functions in the correct sequence\n",
" current_inventory = initialize_inventory(products)\n",
" print(\"Current Inventory:\", current_inventory)\n",
"\n",
" ordered_products = get_customer_orders()\n",
" print(\"Products in customer order:\", ordered_products)\n",
"\n",
" updated_inventory = update_inventory(ordered_products, current_inventory)\n",
" \n",
" order_stats = calculate_order_statistics(ordered_products, products)\n",
" print_order_statistics(order_stats)\n",
" \n",
" print_updated_inventory(updated_inventory)\n"
]
},
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