From 4ca5d72a51fee10c280f55c10735a1091aa42a4d Mon Sep 17 00:00:00 2001 From: helinozge Date: Mon, 28 Jul 2025 14:24:08 +0200 Subject: [PATCH] solved lab --- lab-python-error-handling.ipynb | 126 +++++++++++++++++++++++++++++++- 1 file changed, 123 insertions(+), 3 deletions(-) diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb index f4c6ef6..2466772 100644 --- a/lab-python-error-handling.ipynb +++ b/lab-python-error-handling.ipynb @@ -70,13 +70,133 @@ " - If the user enters an invalid product name (e.g., a product name that is not in the inventory), or that doesn't have stock available, display an error message and ask them to re-enter the product name. *Hint: you will need to pass inventory as a parameter*\n", " - Use a try-except block to handle the error and continue prompting the user until a valid product name is entered.\n", "\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" + "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", + "\n", + "\n" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "cd020641", + "metadata": {}, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "Invalid input. Please enter a whole number.\n", + "Invalid input. Please enter a whole number.\n", + "Invalid input. Please enter a whole number.\n", + "Invalid product. Available products: ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n", + "Invalid product. Available products: ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n", + "\n", + "Order Statistics:\n", + "Total Products Ordered: 2\n", + "Percentage of Products Ordered: 40.00%\n", + "\n", + "Updated Inventory:\n", + "t-shirt: 3\n", + "mug: 2\n", + "hat: 3\n", + "book: 2\n", + "keychain: 2\n" + ] + } + ], + "source": [ + "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n", + "\n", + "def initialize_inventory(products):\n", + " inventory = {}\n", + " for product in products:\n", + " while True:\n", + " try:\n", + " quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n", + " if quantity < 0:\n", + " print(\"Quantity cannot be negative. Try again.\")\n", + " else:\n", + " inventory[product] = quantity\n", + " break\n", + " except ValueError:\n", + " print(\"Invalid input. Please enter a whole number.\")\n", + " return inventory\n", + "\n", + "def get_customer_orders(inventory):\n", + " while True:\n", + " try:\n", + " num_orders = int(input(\"Enter the number of customer orders: \"))\n", + " if num_orders < 0:\n", + " print(\"Number of orders cannot be negative.\")\n", + " continue\n", + " break\n", + " except ValueError:\n", + " print(\"Invalid input. Please enter a valid number.\")\n", + " \n", + " customer_orders = set()\n", + " for _ in range(num_orders):\n", + " while True:\n", + " product = input(\"Enter a product the customer wants to order: \").strip().lower()\n", + " if product not in inventory:\n", + " print(f\"Invalid product. Available products: {list(inventory.keys())}\")\n", + " elif inventory[product] <= 0:\n", + " print(f\"Sorry, {product} is out of stock.\")\n", + " else:\n", + " customer_orders.add(product)\n", + " break\n", + " return customer_orders\n", + "\n", + "def calculate_total_price(customer_orders):\n", + " prices = {}\n", + " for product in customer_orders:\n", + " while True:\n", + " try:\n", + " price = float(input(f\"Enter the price of {product}: \"))\n", + " if price < 0:\n", + " print(\"Price cannot be negative.\")\n", + " else:\n", + " prices[product] = price\n", + " break\n", + " except ValueError:\n", + " print(\"Invalid input. Please enter a numeric price.\")\n", + " return sum(prices.values())\n", + "\n", + "def update_inventory(customer_orders, inventory):\n", + " for product in customer_orders:\n", + " if product in inventory and inventory[product] > 0:\n", + " inventory[product] -= 1\n", + " return {k: v for k, v in inventory.items() if v > 0}\n", + "\n", + "def calculate_order_statistics(customer_orders, products):\n", + " total = len(customer_orders)\n", + " percent = (total / len(products)) * 100\n", + " return total, percent\n", + "\n", + "def print_order_statistics(stats):\n", + " total, percent = stats\n", + " print(\"\\nOrder Statistics:\")\n", + " print(f\"Total Products Ordered: {total}\")\n", + " print(f\"Percentage of Products Ordered: {percent:.2f}%\")\n", + "\n", + "def print_updated_inventory(inventory):\n", + " print(\"\\nUpdated Inventory:\")\n", + " for product, quantity in inventory.items():\n", + " print(f\"{product}: {quantity}\")\n", + "\n", + "# ----- Main Program -----\n", + "inventory = initialize_inventory(products)\n", + "customer_orders = get_customer_orders(inventory)\n", + "print_order_statistics(calculate_order_statistics(customer_orders, products))\n", + "inventory = update_inventory(customer_orders, inventory)\n", + "print_updated_inventory(inventory)\n", + "total_price = calculate_total_price(customer_orders)\n", + "print(f\"\\nTotal Price: {total_price:.2f}\")" ] } ], "metadata": { "kernelspec": { - "display_name": "Python 3 (ipykernel)", + "display_name": "base", "language": "python", "name": "python3" }, @@ -90,7 +210,7 @@ "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", - "version": "3.9.13" + "version": "3.12.7" } }, "nbformat": 4,