From 66e0dd5492362223c9870ff72c8ed6a4bfae1902 Mon Sep 17 00:00:00 2001
From: Johannes Vidal <johannes.blickle.vidal@gmail.com>
Date: Wed, 1 Apr 2026 18:36:12 +0200
Subject: [PATCH] Lab completed lab-python-functions

---
 lab-python-functions.ipynb | 145 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 143 insertions(+), 2 deletions(-)

diff --git a/lab-python-functions.ipynb b/lab-python-functions.ipynb
index 44d337b..4eaa998 100644
--- a/lab-python-functions.ipynb
+++ b/lab-python-functions.ipynb
@@ -43,11 +43,152 @@
     "\n",
     "\n"
    ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "acab0136",
+   "metadata": {},
+   "outputs": [],
+   "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\"Please enter the number of units available of {product}: \"))\n",
+    "\n",
+    "                if quantity < 0: \n",
+    "                    print(f\"Please enter a valid whole number of units of {product} available.\")\n",
+    "                    continue\n",
+    "                inventory[product] = quantity\n",
+    "                break\n",
+    "\n",
+    "            except ValueError:\n",
+    "                print(f\"Invalid input. Please enter a valid whole number of units of {product} available.\")\n",
+    "    return inventory \n",
+    "\n",
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "    shopping = True\n",
+    "    while shopping:\n",
+    "        product_name = input(\"Write the name of the product you would like to order: \").strip().lower()\n",
+    "        if product_name not in products:\n",
+    "                print(\"Item name couldnt be found. Please try again:\")\n",
+    "                continue\n",
+    "        else:\n",
+    "            customer_orders.add(product_name)\n",
+    "            print(f\"{product_name} has been added to the basket.\" )\n",
+    "            while True:\n",
+    "                print(\"Would you like to keep purchasing on our web?\")\n",
+    "                purchase = input(\"Write 'Yes' or 'No': \").title().strip()\n",
+    "                if purchase == \"Yes\":\n",
+    "                    break\n",
+    "                elif purchase == \"No\":\n",
+    "                    shopping = False\n",
+    "                    break\n",
+    "                else:\n",
+    "                 print(\"Invalid option.\")\n",
+    "    return customer_orders\n",
+    "\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for product in customer_orders:\n",
+    "        if inventory[product] >= 1:\n",
+    "            inventory[product] -= 1\n",
+    "    return inventory\n",
+    "\n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    percentage_of_total_products = total_products_ordered/len(products)*100\n",
+    "    return total_products_ordered, percentage_of_total_products\n",
+    "\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    (total_products_ordered,percentage_of_total_products) = order_statistics\n",
+    "    print(\"Order Statistics: \")\n",
+    "    print(f\"The total number of products ordered is: {total_products_ordered}\")\n",
+    "    print(f\"The percentage of the total of this order is: {percentage_of_total_products} %\")\n",
+    "\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(inventory)\n",
+    "\n",
+    "inventory = initialize_inventory(products)\n",
+    "customer_orders = get_customer_orders()\n",
+    "inventory = update_inventory(customer_orders,inventory)\n",
+    "order_statistics = calculate_order_statistics(customer_orders,products)\n",
+    "print_order_statistics(order_statistics)\n",
+    "print_updated_inventory(inventory)\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 7,
+   "id": "77f97c7a",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "{'t-shirt': 11, 'mug': 12, 'hat': 13, 'book': 14, 'keychain': 15}"
+      ]
+     },
+     "execution_count": 7,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "initialize_inventory(products)"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 14,
+   "id": "53859bbb",
+   "metadata": {},
+   "outputs": [
+    {
+     "name": "stdout",
+     "output_type": "stream",
+     "text": [
+      "t-shirt has been added to the basket.\n",
+      "Would you like to keep purchasing on our web?\n",
+      "Invalid option.\n",
+      "Would you like to keep purchasing on our web?\n",
+      "Invalid option.\n",
+      "Would you like to keep purchasing on our web?\n",
+      "mug has been added to the basket.\n",
+      "Would you like to keep purchasing on our web?\n"
+     ]
+    },
+    {
+     "data": {
+      "text/plain": [
+       "{'mug', 't-shirt'}"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "get_customer_orders()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "30a209b9",
+   "metadata": {},
+   "outputs": [],
+   "source": []
   }
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
+   "display_name": "Python 3",
    "language": "python",
    "name": "python3"
   },
@@ -61,7 +202,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.13"
+   "version": "3.14.0"
   }
  },
  "nbformat": 4,