From 1843588e3965b3eca1764244b3c34bd18000dd9a Mon Sep 17 00:00:00 2001
From: pietroguido90-design <pietroguido90gmail.com>
Date: Tue, 15 Sep 2026 16:25:41 +0100
Subject: [PATCH] LAB Flow Control COmpleted

---
 lab-python-flow-control.ipynb | 118 +++++++++++++++++++++++++++++++++-
 1 file changed, 116 insertions(+), 2 deletions(-)

diff --git a/lab-python-flow-control.ipynb b/lab-python-flow-control.ipynb
index f4c7391..ad4d05d 100644
--- a/lab-python-flow-control.ipynb
+++ b/lab-python-flow-control.ipynb
@@ -37,11 +37,125 @@
     "\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": 47,
+   "id": "14e1262c",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 48,
+   "id": "e09a86f1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "customer_orders = set()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 49,
+   "id": "afc8584f",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "inventory = {}"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 52,
+   "id": "48217e17",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "for product in products:\n",
+    "    num_str = input(f\"Enter quantity of {product}: \")\n",
+    "    n_items = int(num_str)\n",
+    "    inventory[product] = n_items"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 53,
+   "id": "fdc04818",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'t-shirt': 5, 'mug': 5, 'hat': 5, 'book': 5, 'keychain': 5}"
+      ]
+     },
+     "execution_count": 53,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "inventory"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 59,
+   "id": "f1b021c3",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "t-shirt: 2\n",
+      "mug: -4\n",
+      "hat: 5\n",
+      "book: 3\n",
+      "keychain: 5\n"
+     ]
+    }
+   ],
+   "source": [
+    "while True:\n",
+    "    # 1. Ask the user for a product name inside the loop\n",
+    "    product_name = input(f\"Enter a product to order (Available: {list(inventory.keys())}): \").lower().strip()\n",
+    "    \n",
+    "    # 2. Check if the product exists in inventory\n",
+    "    if product_name not in inventory:\n",
+    "        print(f\"Sorry, '{product_name}' is not in stock.\\n\")\n",
+    "        continue  # Re-starts the loop so the user can try typing a valid product\n",
+    "    \n",
+    "    # 3. Add valid product to customer_orders\n",
+    "    customer_orders.add(product_name)\n",
+    "\n",
+    "    # Check if the product exists in the inventory dictionary\n",
+    "    for product in customer_orders:\n",
+    "        if product in inventory:\n",
+    "            inventory[product] -= 1\n",
+    "    \n",
+    "    # 4. Ask if they want to add another item with validation\n",
+    "    while True:\n",
+    "        another = input(\"Do you want to add another product? (yes/no): \").lower().strip()\n",
+    "        if another in [\"yes\", \"no\"]:\n",
+    "            break\n",
+    "        print(\"Invalid answer! Please respond with 'yes' or 'no'.\")\n",
+    "    \n",
+    "    # 5. Stop the main loop if user says 'no'\n",
+    "    if another == \"no\":\n",
+    "        break\n",
+    "for product, quantity in inventory.items():\n",
+    "    print(f\"{product}: {quantity}\")"
+   ]
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": ".venv (3.14.6.final.0)",
    "language": "python",
    "name": "python3"
   },
@@ -55,7 +169,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.6"
   }
  },
  "nbformat": 4,