Functions - Solved lab

lab-python-functions-solved.ipynb

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+   "source": [
+    "# Lab | Functions"
+   ]
+  },
+  {
+   "cell_type": "markdown",
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+    "## Exercise: Managing Customer Orders with Functions\n",
+    "\n",
+    "In the previous exercise, you improved the code for managing customer orders by using loops and flow control. Now, let's take it a step further and refactor the code by introducing functions.\n",
+    "\n",
+    "Follow the steps below to complete the exercise:\n",
+    "\n",
+    "1. Define a function named `initialize_inventory` that takes `products` as a parameter. Inside the function, implement the code for initializing the inventory dictionary using a loop and user input.\n",
+    "\n",
+    "2. Define a function named `get_customer_orders` that takes no parameters. Inside the function, implement the code for prompting the user to enter the product names using a loop. The function should return the `customer_orders` set.\n",
+    "\n",
+    "3. Define a function named `update_inventory` that takes `customer_orders` and `inventory` as parameters. Inside the function, implement the code for updating the inventory dictionary based on the customer orders.\n",
+    "\n",
+    "4. Define a function named `calculate_order_statistics` that takes `customer_orders` and `products` as parameters. Inside the function, implement the code for calculating the order statistics (total products ordered, and percentage of unique products ordered). The function should return these values.\n",
+    "\n",
+    "5. Define a function named `print_order_statistics` that takes `order_statistics` as a parameter. Inside the function, implement the code for printing the order statistics.\n",
+    "\n",
+    "6. Define a function named `print_updated_inventory` that takes `inventory` as a parameter. Inside the function, implement the code for printing the updated inventory.\n",
+    "\n",
+    "7. Call the functions in the appropriate sequence to execute the program and manage customer orders.\n",
+    "\n",
+    "Hints for functions:\n",
+    "\n",
+    "- Consider the input parameters required for each function and their return values.\n",
+    "- Utilize function parameters and return values to transfer data between functions.\n",
+    "- Test your functions individually to ensure they work correctly.\n",
+    "\n",
+    "\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f4ec232e",
+   "metadata": {},
+   "outputs": [],
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+    "\n",
+    "# 1. Define initialize_inventory\n",
+    "def initialize_inventory(products):\n",
+    "    inventory = {}\n",
+    "    for product in products:\n",
+    "        quantity = int(input(f\"Enter initial quantity for {product}: \"))\n",
+    "        inventory[product] = quantity\n",
+    "    return inventory\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "f4eb3d05",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 2. Define get_customer_orders\n",
+    "def get_customer_orders():\n",
+    "    customer_orders = set()\n",
+    "    while True:\n",
+    "        order = input(\"Enter a product name to order (or type 'done' to finish): \").strip()\n",
+    "        if order.lower() == 'done':\n",
+    "            break\n",
+    "        customer_orders.add(order)\n",
+    "    return customer_orders\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "76f84661",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 3. Define update_inventory\n",
+    "def update_inventory(customer_orders, inventory):\n",
+    "    for order in customer_orders:\n",
+    "        if order in inventory and inventory[order] > 0:\n",
+    "            inventory[order] -= 1\n",
+    "        else:\n",
+    "            print(f\"Product '{order}' is out of stock or not found.\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "64c2c274",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 4. Define calculate_order_statistics\n",
+    "def calculate_order_statistics(customer_orders, products):\n",
+    "    total_products_ordered = len(customer_orders)\n",
+    "    unique_products_ordered = len([p for p in customer_orders if p in products])\n",
+    "    percentage_unique = (unique_products_ordered / len(products)) * 100 if products else 0\n",
+    "    return total_products_ordered, percentage_unique\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "d14de91e",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 5. Define print_order_statistics\n",
+    "def print_order_statistics(order_statistics):\n",
+    "    total, percentage = order_statistics\n",
+    "    print(f\"Total products ordered: {total}\")\n",
+    "    print(f\"Percentage of unique products ordered: {percentage:.2f}%\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "e3ba48f3",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 6. Define print_updated_inventory\n",
+    "def print_updated_inventory(inventory):\n",
+    "    print(\"Updated Inventory:\")\n",
+    "    for product, quantity in inventory.items():\n",
+    "        print(f\"{product}: {quantity}\")\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "2eb27461",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "\n",
+    "# 7. Main execution flow\n",
+    "products = [\"apple\", \"banana\", \"orange\", \"grape\", \"mango\"]\n",
+    "inventory = initialize_inventory(products)\n",
+    "customer_orders = get_customer_orders()\n",
+    "update_inventory(customer_orders, inventory)\n",
+    "order_stats = calculate_order_statistics(customer_orders, products)\n",
+    "print_order_statistics(order_stats)\n",
+    "print_updated_inventory(inventory)\n"
+   ]
+  }
+ ],
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