completed

lab-python-error-handling.ipynb

@@ -72,11 +72,127 @@
     "\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": 1,
+   "id": "5c60089d",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "Error: '5' is not a valid product.\n",
+      "Error: '2' is not a valid product.\n",
+      "Error: '2' is not a valid product.\n",
+      "Error: 't-shirts' is not a valid product.\n",
+      "\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: 5\n",
+      "Percentage of Unique Products Ordered: 80.0\n",
+      "\n",
+      "Updated Inventory:\n",
+      "t-shirt: 5\n",
+      "mug: 3\n",
+      "hat: 1\n",
+      "book: 1\n",
+      "Total Price: 22.0\n"
+     ]
+    }
+   ],
+   "source": [
+    "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",
+    "                    raise ValueError(\"Quantity cannot be negative.\")\n",
+    "                inventory[product] = quantity\n",
+    "                break\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error}. Please enter a valid non-negative integer.\")\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",
+    "                raise ValueError(\"Number of orders cannot be negative.\")\n",
+    "            break\n",
+    "        except ValueError as error:\n",
+    "            print(f\"Error: {error}. Please enter a valid non-negative integer.\")\n",
+    "\n",
+    "    orders = []\n",
+    "    for _ in range(num_orders):\n",
+    "        while True:\n",
+    "            product = input(\"Enter the name of a product that a customer wants to order: \").strip().lower()\n",
+    "            if product not in inventory:\n",
+    "                print(f\"Error: '{product}' is not a valid product.\")\n",
+    "            elif inventory[product] == 0:\n",
+    "                print(f\"Error: '{product}' is out of stock.\")\n",
+    "            else:\n",
+    "                orders.append(product)\n",
+    "                break\n",
+    "    return orders  \n",
+    "\n",
+    "def calculate_total_price(customer_orders):\n",
+    "    total = 0.0\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",
+    "                    raise ValueError(\"Price cannot be negative.\")\n",
+    "                total += price\n",
+    "                break\n",
+    "            except ValueError as error:\n",
+    "                print(f\"Error: {error}. Please enter a valid non-negative number.\")\n",
+    "    return total\n",
+    "\n",
+    "def update_inventory(inventory, customer_orders):\n",
+    "    for product in customer_orders:\n",
+    "        if product in inventory:\n",
+    "            inventory[product] -= 1\n",
+    "\n",
+    "    inventory = {product: qty for product, qty in inventory.items() if qty > 0}\n",
+    "    return inventory\n",
+    "\n",
+    "def main():\n",
+    "    products = ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n",
+    "    inventory = initialize_inventory(products)\n",
+    "    customer_orders = get_customer_orders(inventory)\n",
+    "\n",
+    "    # Order statistics\n",
+    "    total_ordered = len(customer_orders)\n",
+    "    unique_ordered = len(set(customer_orders))\n",
+    "    percentage_unique = (unique_ordered / len(products)) * 100\n",
+    "\n",
+    "    print(\"\\nOrder Statistics:\")\n",
+    "    print(f\"Total Products Ordered: {total_ordered}\")\n",
+    "    print(f\"Percentage of Unique Products Ordered: {percentage_unique:.1f}\")\n",
+    "\n",
+    "    # Update inventory\n",
+    "    inventory = update_inventory(inventory, customer_orders)\n",
+    "    print(\"\\nUpdated Inventory:\")\n",
+    "    for product, qty in inventory.items():\n",
+    "        print(f\"{product}: {qty}\")\n",
+    "\n",
+    "    # Calculate and display total price\n",
+    "    total_price = calculate_total_price(customer_orders)\n",
+    "    print(f\"Total Price: {total_price:.1f}\")\n",
+    "\n",
+    "if __name__ == \"__main__\":\n",
+    "    main()\n"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -90,7 +206,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.12.7"
   }
  },
  "nbformat": 4,