From bb3060a182089c6a3eef9fe28484b8140f216afb Mon Sep 17 00:00:00 2001 From: cristhian Date: Fri, 29 Nov 2024 18:55:17 +0100 Subject: [PATCH] week 1 lab 3 done --- lab-python-error-handling.ipynb | 208 +++++++++++++++++++++++++++++++- 1 file changed, 207 insertions(+), 1 deletion(-) diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb index f4c6ef6..c770f59 100644 --- a/lab-python-error-handling.ipynb +++ b/lab-python-error-handling.ipynb @@ -72,6 +72,212 @@ "\n", "4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected.\n" ] + }, + { + "cell_type": "code", + "execution_count": 15, + "id": "fda072d9-0af4-4662-94e5-d7e059fed332", + "metadata": {}, + "outputs": [], + "source": [ + "#Modify the calculate_total_price function to include error handling.\n", + "#If the user enters an invalid price (e.g., a negative value or a non-numeric value), display an error message and ask them to re-enter the price for that product.\n", + "#Use a try-except block to handle the error and continue prompting the user until a valid price is entered.\n", + "products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n", + "\n", + "def initialize_inventory(products):\n", + " inventory = {}\n", + " for product in products:\n", + " valid_quantity = False\n", + " while not valid_quantity:\n", + " try:\n", + " quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n", + " if quantity < 0:\n", + " raise ValueError(\"Please enter a non-negative value.\")\n", + " valid_quantity = True\n", + " except ValueError as error:\n", + " print(f\"Error: {error}\")\n", + " inventory[product] = quantity\n", + " return inventory\n", + "\n", + "def get_customer_orders(products, inventory):\n", + " while True:\n", + " try:\n", + " num_orders = int(input(\"How many products does the customer want to order? \"))\n", + " if num_orders < 0:\n", + " raise ValueError(\"The number of orders cannot be negative.\")\n", + " break\n", + " except ValueError as e:\n", + " print(f\"Invalid input: {e}. Please enter a positive integer for the number of orders.\")\n", + "\n", + " customer_orders = set()\n", + " for i in range(num_orders):\n", + " while True:\n", + " product = input(f\"Enter the name of product #{i+1} from the following list {products}: \")\n", + " if product in products and inventory.get(product, 0) > 0:\n", + " customer_orders.add(product)\n", + " break\n", + " else:\n", + " print(\"Invalid product name. \")\n", + "\n", + " return customer_orders\n", + "\n", + "\n", + "def update_inventory(customer_orders, inventory):\n", + " updated_inventory = {product: count - (1 if product in customer_orders else 0)for product, count in inventory.items()}\n", + "\n", + " updated_inventory = {product: count for product, count in updated_inventory.items() if count > 0}\n", + " \n", + " return updated_inventory\n", + "\n", + "def calculate_order_statistics(customer_orders, products):\n", + " total_products_ordered = len(customer_orders)\n", + " unique_products = set(products)\n", + " percentage = (total_products_ordered / len(unique_products)) * 100\n", + " return total_products_ordered, percentage\n", + "\n", + "def print_order_statistics(order_statistics):\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}%\")\n", + "\n", + "def print_updated_inventory(inventory):\n", + " print(\"Updated Inventory:\") \n", + " for product, quantity in inventory.items():\n", + " print(f\"{product}: {quantity}\")\n", + "\n", + "\n", + "def calculate_total_price(customer_orders):\n", + " total_price = 0.0\n", + " for product in customer_orders:\n", + " while True:\n", + " try:\n", + " price = float(input(f\"Enter the price for {product}: \"))\n", + " if price < 0:\n", + " raise ValueError(\"Price cannot be negative.\")\n", + " total_price += price\n", + " break\n", + " except ValueError as e:\n", + " print(f\"Invalid input: {e}. Please enter a valid price.\")\n", + " return total_price" + ] + }, + { + "cell_type": "code", + "execution_count": 17, + "id": "362d27e1-7ed2-4b57-8e45-5db51df1080f", + "metadata": {}, + "outputs": [ + { + "name": "stdin", + "output_type": "stream", + "text": [ + "Enter the quantity of t-shirts available: -5\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Error: Please enter a non-negative value.\n" + ] + }, + { + "name": "stdin", + "output_type": "stream", + "text": [ + "Enter the quantity of t-shirts available: 5\n", + "Enter the quantity of mugs available: 5\n", + "Enter the quantity of hats available: 5\n", + "Enter the quantity of books available: 5\n", + "Enter the quantity of keychains available: 5\n", + "How many products does the customer want to order? -10\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Invalid input: The number of orders cannot be negative.. Please enter a positive integer for the number of orders.\n" + ] + }, + { + "name": "stdin", + "output_type": "stream", + "text": [ + "How many products does the customer want to order? 2\n", + "Enter the name of product #1 from the following list ['t-shirt', 'mug', 'hat', 'book', 'keychain']: mug\n", + "Enter the name of product #2 from the following list ['t-shirt', 'mug', 'hat', 'book', 'keychain']: hat\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "text": [ + "\n", + "Order Statistics:\n", + "Total Products Ordered: 2\n", + "Percentage of Products Ordered: 40.0%\n", + "\n", + "Updated Inventory:\n", + "t-shirt: 5\n", + "mug: 4\n", + "hat: 4\n", + "book: 5\n", + "keychain: 5\n" + ] + }, + { + "name": "stdin", + "output_type": "stream", + "text": [ + "Enter the price for mug: -3\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Invalid input: Price cannot be negative.. Please enter a valid price.\n" + ] + }, + { + "name": "stdin", + "output_type": "stream", + "text": [ + "Enter the price for mug: 15\n", + "Enter the price for hat: 2\n" + ] + }, + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Total Price: 17.0\n" + ] + } + ], + "source": [ + "inventory = initialize_inventory(products)\n", + "customer_orders = get_customer_orders(products, inventory)\n", + "print()\n", + "order_statistics = calculate_order_statistics(customer_orders, products)\n", + "print_order_statistics(order_statistics)\n", + "print()\n", + "inventory = update_inventory(customer_orders, inventory)\n", + "print_updated_inventory(inventory)\n", + "total_price = calculate_total_price(customer_orders)\n", + "print(f\"Total Price: {total_price:.1f}\")" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "cd9d40e7-d042-421a-a78c-6a387fd93b41", + "metadata": {}, + "outputs": [], + "source": [] } ], "metadata": { @@ -90,7 +296,7 @@ "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", - "version": "3.9.13" + "version": "3.12.7" } }, "nbformat": 4,