Update lab-python-functions.ipynb

lab-python-functions.ipynb

@@ -1,69 +1,63 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "id": "25d7736c-ba17-4aff-b6bb-66eba20fbf4e",
-   "metadata": {},
-   "source": [
-    "# Lab | Functions"
-   ]
-  },
-  {
-   "cell_type": "markdown",
-   "id": "0c581062-8967-4d93-b06e-62833222f930",
-   "metadata": {
-    "tags": []
-   },
-   "source": [
-    "## 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"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.9.13"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}
+def initialize_inventory(products):
+    inventory = {}
+    for product in products:
+        quantity = int(input(f"Enter the quantity for {product}: "))
+        inventory[product] = quantity
+    return inventory
+
+def get_customer_orders():
+    customer_orders = set()
+    print("\nEnter product names one by one (type 'ok' to finish):")
+    while True:
+        order = input("Product name: ").strip()
+        if order.lower() == 'ok':
+            break
+        customer_orders.add(order)
+    return customer_orders
+
+def update_inventory(customer_orders, inventory):
+    for order in customer_orders:
+        if order in inventory and inventory[order] > 0:
+            inventory[order] -= 1
+        elif order in inventory:
+            print(f" {order} is out of stock!")
+        else:
+            print(f" {order} is not in the inventory!")
+    return inventory
+
+def calculate_order_statistics(customer_orders, products):
+    total_ordered = len(customer_orders)
+    percentage_unique = (total_ordered / len(products)) * 100
+    return total_ordered, percentage_unique
+
+def print_order_statistics(order_statistics):
+    total_ordered, percentage_unique = order_statistics
+    print("\n Order Statistics:")
+    print(f"Total products ordered: {total_ordered}")
+    print(f"Percentage of unique products ordered: {percentage_unique:.2f}%")
+
+def print_updated_inventory(inventory):
+    print("\n Updated Inventory:")
+    for product, quantity in inventory.items():
+        print(f"{product}: {quantity}")
+
+def main():
+    products = ["apples", "bananas", "oranges", "grapes"]
+
+    print("Initialize Inventory ")
+    inventory = initialize_inventory(products)
+
+    print("\n Get Customer Orders ")
+    customer_orders = get_customer_orders()
+
+    print("\n Update Inventory ")
+    inventory = update_inventory(customer_orders, inventory)
+
+    print("\n Calculate Order Statistics ")
+    order_statistics = calculate_order_statistics(customer_orders, products)
+
+    print_order_statistics(order_statistics)
+    print_updated_inventory(inventory)
+
+if __name__ == "__main__":
+    main()