Lab complete

lab-python-flow-control.ipynb

@@ -10,6 +10,116 @@
     "# Lab | Flow Control"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "d8cb3fe6",
+   "metadata": {},
+   "source": [
+    "## Exercise: Managing Customer Orders Optimized"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "a51bae6c",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "t-shirt: *5\n",
+      "mug: *2\n",
+      "hat: *5\n",
+      "book: *2\n",
+      "keychain: *5\n",
+      "Current customer orders (empty set): set()\n",
+      "Invalid product, this item will be ignored.\n",
+      "\n",
+      "Products in the customer's order (set):\n",
+      "\n",
+      "*Order Statistics:*\n",
+      "Total Products Ordered (distinct): 0\n",
+      "Percentage of Products Ordered: 0.00%\n",
+      "\n",
+      "*Updated Inventory*\n",
+      "t-shirt: 5\n",
+      "mug: 2\n",
+      "hat: 5\n",
+      "book: 2\n",
+      "keychain: 5\n"
+     ]
+    }
+   ],
+   "source": [
+    "\n",
+    "#1. Look at your code from the lab data structures, and improve repeated code with loops:\n",
+    "\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "inventory = {}\n",
+    "\n",
+    "for product in products:\n",
+    "    quantity = int(input(f\"Enter the available quantity for {product}: \"))  #f strings: to format selected parts of a string\n",
+    "    inventory[product] = quantity\n",
+    "    print(f\"{product}: {inventory[product]}\")\n",
+    "\n",
+    "\n",
+    "customer_orders = set()\n",
+    "print(\"Current customer orders (empty set):\", customer_orders)\n",
+    "\n",
+    "#2. Instead of asking the user to input the name of three products that a customer wants to order, do the following:\n",
+    "# a. Prompt the user to enter the name of a product that a customer wants to order:\n",
+    "# b. Add the product name to the \"customer_orders\" set:\n",
+    "# c. Ask the user if they want to add another product (yes/no):\n",
+    "# d. Continue the loop until the user does not want to add another product:\n",
+    "\n",
+    "while True:\n",
+    "    product_name = input(\"Enter the name of a product to add to the order: \").strip().lower()\n",
+    "\n",
+    "    if product_name in products:\n",
+    "        customer_orders.add(product_name)\n",
+    "        print(f\"{product_name} added to the order.\")\n",
+    "    else:\n",
+    "        print(\"Invalid product, this item will be ignored.\")\n",
+    "\n",
+    "    another_product = input(\"Do you want to add another product? (yes/no): \").strip().lower()\n",
+    "    if another_product not in (\"yes\", \"y\", \"Y\", \"YES\", \"Yes\"):\n",
+    "        break\n",
+    "\n",
+    " \n",
+    "print(\"\\nProducts in the customer's order (set):\") # \\n to create a new line\n",
+    "for item in customer_orders:\n",
+    "    print(\"-\", item)\n",
+    "\n",
+    "# Order statistics:\n",
+    "total_products_ordered = len(customer_orders)\n",
+    "\n",
+    "# % of products ordered compared to the total number of different products:\n",
+    "percentage_ordered = (total_products_ordered / len(products)) * 100\n",
+    "\n",
+    "order_status = (total_products_ordered, percentage_ordered)\n",
+    "\n",
+    "# Print the order statistics:\n",
+    "print(\"\\n*Order Statistics:*\")\n",
+    "print(f\"Total Products Ordered (distinct): {order_status[0]}\")\n",
+    "print(f\"Percentage of Products Ordered: {order_status[1]:.2f}%\")\n",
+    "\n",
+    "# 3. Instead of updating the inventory by subtracting 1 from the quantity of each product, \n",
+    "# only do it for  the products that were ordered (those in \"customer_orders\"):\n",
+    "\n",
+    "for ordered_product in customer_orders:\n",
+    "    if inventory[ordered_product] > 0:\n",
+    "        inventory[ordered_product] -= 1\n",
+    "    else:\n",
+    "        print(f\"Warning: no inventory left for '{ordered_product}'.\")\n",
+    "\n",
+    "\n",
+    "print(\"\\nUpdated Inventory\")\n",
+    "for product in products:\n",
+    "    print(f\"{product}: {inventory[product]}\")"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "3851fcd1-cf98-4653-9c89-e003b7ec9400",
@@ -41,7 +151,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "base",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +165,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.13.5"
   }
  },
  "nbformat": 4,