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Solve lab #516

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182 changes: 182 additions & 0 deletions lab-python-list-comprehension (2).ipynb
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"source": [
"# Lab | List, Dict and Set Comprehension"
]
},
{
"cell_type": "markdown",
"id": "7dd3cbde-675a-4b81-92c3-f728846dbe06",
"metadata": {},
"source": [
"## Exercise: Managing Customer Orders Optimized with Comprehension"
]
},
{
"cell_type": "markdown",
"id": "5d500160-2fb7-4777-b5e4-09d45ebaf328",
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"In the previous exercise, you developed a program to manage customer orders and inventory. Now, let's take it a step further and incorporate comprehension into your code.\n",
"\n",
"Follow the steps below to complete the exercise:\n",
"\n",
"1. Review your code from the previous exercise and identify areas where you can apply comprehension to simplify and streamline your code. \n",
"\n",
" - *Hint: Apply it to initialize inventory, updating the inventory and printing the updated inventory.*\n",
" \n",
" - For example, in initializing the inventory, we could have:\n",
" \n",
" ```python\n",
" def initialize_inventory(products):\n",
" inventory = {product: int(input(f\"Enter the quantity of {product}s available: \")) for product in products}\n",
" return inventory\n",
"\n",
" ```\n",
"<br>\n",
" \n",
" \n",
"2. Modify the function get_customer_orders so it prompts the user to enter the number of customer orders and gathers the product names using a loop and user input. Use comprehension.\n",
"\n",
"3. Add a new function to calculate the total price of the customer order. For each product in customer_orders, prompt the user to enter the price of that product. Use comprehension to calculate the total price. Note: assume that the user can only have 1 unit of each product.\n",
"\n",
"4. Modify the update_inventory function to remove the product from the inventory if its quantity becomes zero after fulfilling the customer orders. Use comprehension to filter out the products with a quantity of zero from the inventory.\n",
"\n",
"5. Print the total price of the customer order.\n",
"\n",
"Your code should produce output similar to the following:\n",
"\n",
"```python\n",
"Enter the quantity of t-shirts available: 5\n",
"Enter the quantity of mugs available: 4\n",
"Enter the quantity of hats available: 3\n",
"Enter the quantity of books available: 2\n",
"Enter the quantity of keychains available: 1\n",
"Enter the number of customer orders: 2\n",
"Enter the name of a product that a customer wants to order: hat\n",
"Enter the name of a product that a customer wants to order: keychain\n",
"\n",
"Order Statistics:\n",
"Total Products Ordered: 2\n",
"Percentage of Unique Products Ordered: 40.0\n",
"\n",
"Updated Inventory:\n",
"t-shirt: 5\n",
"mug: 4\n",
"hat: 2\n",
"book: 2\n",
"Enter the price of keychain: 5\n",
"Enter the price of hat: 10\n",
"Total Price: 15.0\n",
"\n",
"```\n"
]
},
{
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"id": "b6636b3e",
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"source": [
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
]
},
{
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"execution_count": null,
"id": "f1327d4f",
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{
"name": "stdout",
"output_type": "stream",
"text": [
"Customer orders: {'keychain', 'hat'}\n",
"t-shirt: 5\n",
"mug: 4\n",
"hat: 2\n",
"book: 2\n",
"keychain: 0\n",
"Order statistics: (2, 40.0)\n",
"Total products ordered: 2\n",
"Percentage of unique products ordered: 40.00%\n"
]
}
],
"source": [
"#1. Review your code from the previous exercise and identify areas where you can apply comprehension to simplify and streamline your code. \n",
"#Apply it to initialize inventory, updating the inventory and printing the updated inventory. For example, in initializing the inventory, we could have:\n",
"def initialize_inventory(products):\n",
" inventory = {product: int(input(f\"Enter the quantity of {product}s available: \")) for product in products}\n",
" return inventory\n",
"inventory = initialize_inventory(products)\n",
"\n",
"#Updating the inventory could be:\n",
"\n",
"customer_orders = set()\n",
"while True:\n",
" product_name = input(\"Enter the name of a product that a customer wants to order: \")\n",
" customer_orders.add(product_name)\n",
" if len(customer_orders) == 2:\n",
" break\n",
"print(\"Customer orders:\", customer_orders)\n",
"\n",
"def update_inventory(customer_orders, inventory):\n",
" for product in customer_orders:\n",
" inventory[product] -= 1\n",
" return inventory\n",
"inventory = update_inventory(customer_orders, inventory)\n",
"\n",
"\n",
"def print_updated_inventory(inventory):\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n",
" return\n",
"print_updated_inventory(inventory)\n",
"\n",
"#Calculating order statistics could be:\n",
"def calculate_order_statistics(customer_orders, products):\n",
" total_products_ordered = len(customer_orders)\n",
" percentage_unique_ordered = (total_products_ordered / len(products)) * 100\n",
" return total_products_ordered, percentage_unique_ordered\n",
"order_statistics = calculate_order_statistics(customer_orders, products)\n",
"print(\"Order statistics:\", order_statistics)\n",
"\n",
"#Printing order statistics could be:\n",
"def print_order_statistics(order_statistics):\n",
" total_products_ordered, percentage_unique_ordered = order_statistics\n",
" print(f\"Total products ordered: {total_products_ordered}\")\n",
" print(f\"Percentage of unique products ordered: {percentage_unique_ordered:.2f}%\")\n",
" return\n",
"print_order_statistics(order_statistics)\n",
"\n"
]
}
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