Lab Flow control for lesson 3 - Oxana Ribeiro

lab-python-flow-control.ipynb

@@ -37,11 +37,118 @@
     "\n",
     "3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for  the products that were ordered (those in \"customer_orders\")."
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e5c00077",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "book is out of stock.\n",
+      "hat is out of stock.\n",
+      "book is out of stock.\n",
+      "hat is out of stock.\n",
+      "Customer orders: ['book', 'hat', 'keychain', 'mug', 't-shirt']\n",
+      "Order Statistics:\n",
+      "Total Products Ordered: 5\n",
+      "Percentage of Products Ordered: 7.936507936507936%\n",
+      "t-shirt: 55\n",
+      "mug: 2\n",
+      "hat: 0\n",
+      "book: 0\n",
+      "keychain: 1\n"
+     ]
+    }
+   ],
+   "source": [
+    "# I had probably misunderstood the previous task and already used the flow control there, \n",
+    "#but let's improve the code to make it reasonable for the actual shop environment.\n",
+    "\n",
+    "#Define the list of products\n",
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
+    "\n",
+    "# Create an inventory.\n",
+    "inventory = {}\n",
+    "\n",
+    "# Filling up investory with data on number of items\n",
+    "for product in products:\n",
+    "    quantity = int(input(f\"Enter the quantity of {product}: \"))\n",
+    "    inventory[product] = quantity\n",
+    "\n",
+    "# I will change the set to list for known reasons.\n",
+    "# If we use set, the customer can only order each product once.\n",
+    "customer_orders = list()\n",
+    "\n",
+    "#5. Now let's allow the customer to place orders for max three products.\n",
+    "y=10000000\n",
+    "n = 0\n",
+    "\n",
+    "# I will use a placeholder inventory to track the available quantities during the\n",
+    "# ordering process\n",
+    "inventory_workingvalue = inventory.copy()\n",
+    "\n",
+    "while n < y:\n",
+    "    order = input(f\"Enter the name of a product you would like to order {n+1}: \")    \n",
+    "    # Check if the order is valid and available in the inventory:\n",
+    "    if order in products and inventory_workingvalue[order] > 0:\n",
+    "        customer_orders.append(order)\n",
+    "        inventory_workingvalue[order] -= 1\n",
+    "        n+=1\n",
+    "    elif order in products and inventory_workingvalue[order] == 0:\n",
+    "        print(f\"{order} is out of stock.\")    \n",
+    "    else:\n",
+    "        print(f\"{order} is not available in the products list.\\nWe only sell t-shirts, mugs, hats, books, keychains\")\n",
+    "    # This part will allow the user to order less than the y products:\n",
+    "    order_more = input(\"Would you like to order more products? \\n type Y for \\\"yes\\\", N for \\\"no\\\": \").strip().lower()\n",
+    "    while order_more not in [\"y\", \"n\"]:\n",
+    "        print(\"Invalid input. Please type Y for \\\"yes\\\" or N for \\\"no\\\".\")\n",
+    "        order_more = input(\"Would you like to order more products? \\n type Y for \\\"yes\\\", N for \\\"no\\\": \").strip().lower()\n",
+    "        continue\n",
+    "    if order_more == \"Y\" or order_more == \"y\":\n",
+    "        continue\n",
+    "    else:\n",
+    "        break\n",
+    "\n",
+    "# I will keep the code as it was before, since I was already only subtructing the sold items \n",
+    "#  from the inventory. But now they can order several items of the same category.\n",
+    "\n",
+    "print(\"Customer orders:\", customer_orders)\n",
+    "\n",
+    "# The statistic we needed: \n",
+    "\n",
+    "total_products_ordered = len(customer_orders)\n",
+    "percentage_products_ordered = (total_products_ordered / sum(inventory.values())) * 100\n",
+    "order_status = (total_products_ordered, percentage_products_ordered)\n",
+    "\n",
+    "print(\"Order Statistics:\")\n",
+    "print(f\"Total Products Ordered: {total_products_ordered}\")\n",
+    "print(f\"Percentage of Products Ordered: {percentage_products_ordered}%\")\n",
+    "\n",
+    "# I configured disctionary to updat in the function. But I am not sure how to call the \n",
+    "# function in the previous loop. But we had a workaround for that :)\n",
+    "\n",
+    "def inventory_new(inventory):\n",
+    "    for product in customer_orders:\n",
+    "        if product in inventory and inventory[product] > 0:\n",
+    "            inventory[product] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "inventory = inventory_new(inventory)    \n",
+    "\n",
+    "# Displaying the updated inventory.\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(f\"{product}: {quantity}\")\n",
+    "\n"
+   ]
   }
  ],
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   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +162,7 @@
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    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
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+   "version": "3.14.7"
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