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338 changes: 334 additions & 4 deletions lab-python-functions.ipynb
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Expand Up @@ -5,7 +5,8 @@
"id": "25d7736c-ba17-4aff-b6bb-66eba20fbf4e",
"metadata": {},
"source": [
"# Lab | Functions"
"# Lab 03 | Functions\n",
"-------"
]
},
{
Expand Down Expand Up @@ -41,13 +42,342 @@
"- Utilize function parameters and return values to transfer data between functions.\n",
"- Test your functions individually to ensure they work correctly.\n",
"\n",
"\n"
"------\n"
]
},
{
"cell_type": "markdown",
"id": "d6bf0c1e",
"metadata": {},
"source": [
"# Solved Lab 03 | Functions\n",
"------"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "9972bdb3",
"metadata": {},
"outputs": [],
"source": [
"#0. List of products from the previous lab\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
]
},
{
"cell_type": "markdown",
"id": "91749d13",
"metadata": {},
"source": [
"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."
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "1ae5a04a",
"metadata": {},
"outputs": [],
"source": [
"#1. def Function : initialize_inventory(products)\n",
"# Initialize inventory dict using a loop and user input\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
" for item in products:\n",
" while True:\n",
" quantity = input(f\"Enter quantity for {item}: \")\n",
" if quantity.isdigit(): # Checks if the input contains only digits\n",
" inventory[item] = int(quantity) # key is item, value is quantity \n",
" print(f\"✅ Quantity = {inventory[item]} for {item}\")\n",
" break\n",
" else:\n",
" print(f\"⚠ Invalid input! Please enter a number only for {item}\")\n",
" return inventory"
]
},
{
"cell_type": "markdown",
"id": "ab98b5bd",
"metadata": {},
"source": [
"\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."
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "6c2aa017",
"metadata": {},
"outputs": [],
"source": [
"#2. def Function : get_customer_orders \n",
"def get_customer_orders():\n",
" products = {\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"}\n",
" customer_orders = set()\n",
"\n",
" product = \"\"\n",
" while product != \"purchase\":\n",
" product = input(\"Enter a product name to order (or type 'PURCHASE' to finish): \").strip().lower()\n",
"\n",
" # Empty input\n",
" if product == \"\":\n",
" print(\"⚠ You didn't type anything. Please enter a product name.\")\n",
" continue\n",
" \n",
" # Finish purchase\n",
" if product == \"purchase\":\n",
" break\n",
"\n",
" # Valid product\n",
" if product in products:\n",
" customer_orders.add(product)\n",
" print(f\"✅ '{product}' added to your order.\")\n",
"\n",
" # Invalid product\n",
" else:\n",
" print(f\"❌ '{product}' is not available.\")\n",
" print(f\"Available products: ,{products}\")\n",
"\n",
" print(\"\\n✅ Purchase complete!\")\n",
" print(\"Your purchase list:\", customer_orders)\n",
" return customer_orders"
]
},
{
"cell_type": "markdown",
"id": "415cf4c0",
"metadata": {},
"source": [
"\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."
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "233c68ec",
"metadata": {},
"outputs": [],
"source": [
"#3. def Function : update_inventory(customer_orders, inventory)\n",
"def update_inventory(customer_orders:set, inventory:dict):\n",
" list_customer_orders = list(customer_orders) # store set as a list for processing\n",
" while True:\n",
" for item in list_customer_orders: # Use the list for iteration\n",
" # Update the inventory based on customer orders\n",
" if item in inventory and inventory[item] > 0: \n",
" inventory[item] -= 1 # Decrease the quantity by 1\n",
" # If the quantity reaches zero, remove the item from the inventory\n",
" elif item in inventory and inventory[item] == 0: \n",
" print(f\"{item} is out of stock and has been removed from the inventory.\")\n",
" # If the item is not found in the inventory, print a message\n",
" else: \n",
" print(f\"{item} is not available in the inventory.\")\n",
" return inventory"
]
},
{
"cell_type": "markdown",
"id": "65d44dad",
"metadata": {},
"source": [
"\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."
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "96dc59c8",
"metadata": {},
"outputs": [],
"source": [
"#4. def Function : calculate_order_statistics(customer_orders, products)\n",
"\n",
"def calculate_order_statistics(customer_orders:set, products:list):\n",
"\n",
" # Total products ordered\n",
" total_products_ordered = len(customer_orders)\n",
"\n",
" # Unique products ordered that exist in the product list\n",
" unique_products_ordered = len(customer_orders.intersection(products))\n",
"\n",
" # Percentage calculation (avoid division by zero)\n",
" percentage_unique = (unique_products_ordered / len(products) * 100) if products else 0\n",
" \n",
" order_statistics = {\n",
" \"total_products_ordered\": total_products_ordered,\n",
" \"percentage_unique_products_ordered\": percentage_unique,\n",
" }\n",
" return total_products_ordered, percentage_unique\n"
]
},
{
"cell_type": "markdown",
"id": "77c72854",
"metadata": {},
"source": [
"\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."
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "c360caba",
"metadata": {},
"outputs": [],
"source": [
"#5. def Function : print_order_statistics(order_statistics)\n",
"# DICT\n",
"order_statistics = {}\n",
"order_statistics[\"total_products_ordered\"], order_statistics[\"percentage_unique_products_ordered\"] = calculate_order_statistics(get_customer_orders(), products)\n",
"\n",
"def print_order_statistics(order_statistics:dict):\n",
"\n",
" # Extract the dictionary if wrapped in a tuple\n",
" if isinstance(order_statistics, tuple) and len(order_statistics) > 0:\n",
" order_statistics = order_statistics[0] \n",
" # Print order statistics\n",
" for product, quantity in order_statistics.items():\n",
" print(f\"Product: {product}, Quantity Remaining: {quantity}\\n\") "
]
},
{
"cell_type": "markdown",
"id": "1d00fd4f",
"metadata": {},
"source": [
"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."
]
},
{
"cell_type": "code",
"execution_count": 105,
"id": "15431b0d",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Updated Inventory:\n",
"Product: t-shirt, Quantity: 10\n",
"Product: mug, Quantity: 20\n",
"Product: hat, Quantity: 30\n",
"Product: book, Quantity: 40\n",
"Product: keychain, Quantity: 50\n"
]
}
],
"source": [
"#6. def Function : print_updated_inventory(inventory)\n",
"def print_updated_inventory(inventory):\n",
" print(f\"Updated Inventory:\")\n",
" for product, quantity in inventory.items():\n",
" print(f\"Product: {product}, Quantity: {quantity}\")\n",
"\n",
"print_updated_inventory(inventory)"
]
},
{
"cell_type": "markdown",
"id": "0b05f70a",
"metadata": {},
"source": [
"7. Call the functions in the appropriate sequence to execute the program and manage customer orders."
]
},
{
"cell_type": "code",
"execution_count": 103,
"id": "9c570942",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"List of products: ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n",
"✅ Quantity = 10 for t-shirt\n",
"✅ Quantity = 20 for mug\n",
"✅ Quantity = 30 for hat\n",
"✅ Quantity = 40 for book\n",
"✅ Quantity = 60 for keychain\n",
"✅ 'keychain' added to your order.\n",
"❌ 'haty' is not available.\n",
"Available products: ,{'book', 't-shirt', 'keychain', 'mug', 'hat'}\n",
"✅ 'hat' added to your order.\n",
"✅ 'book' added to your order.\n",
"\n",
"✅ Purchase complete!\n",
"Your purchase list: {'keychain', 'hat', 'book'}\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n",
"⚠ You didn't type anything. Please enter a product name.\n"
]
},
{
"ename": "KeyboardInterrupt",
"evalue": "Interrupted by user",
"output_type": "error",
"traceback": [
"\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
"\u001b[1;31mKeyboardInterrupt\u001b[0m Traceback (most recent call last)",
"Cell \u001b[1;32mIn[103], line 16\u001b[0m\n\u001b[0;32m 12\u001b[0m get_customer_orders()\n\u001b[0;32m 15\u001b[0m \u001b[38;5;66;03m#3. call Function : update_inventory(customer_orders, inventory)\u001b[39;00m\n\u001b[1;32m---> 16\u001b[0m update_inventory(get_customer_orders(), initialize_inventory(products))\n\u001b[0;32m 18\u001b[0m \u001b[38;5;66;03m#4. call Function : calculate_order_statistics(customer_orders, products)\u001b[39;00m\n\u001b[0;32m 19\u001b[0m order_statistics \u001b[38;5;241m=\u001b[39m calculate_order_statistics(customer_orders\u001b[38;5;241m=\u001b[39mget_customer_orders(), products\u001b[38;5;241m=\u001b[39mproducts)\n",
"Cell \u001b[1;32mIn[98], line 8\u001b[0m, in \u001b[0;36mget_customer_orders\u001b[1;34m()\u001b[0m\n\u001b[0;32m 6\u001b[0m product \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m 7\u001b[0m \u001b[38;5;28;01mwhile\u001b[39;00m product \u001b[38;5;241m!=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mpurchase\u001b[39m\u001b[38;5;124m\"\u001b[39m:\n\u001b[1;32m----> 8\u001b[0m product \u001b[38;5;241m=\u001b[39m \u001b[38;5;28minput\u001b[39m(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mEnter a product name to order (or type \u001b[39m\u001b[38;5;124m'\u001b[39m\u001b[38;5;124mPURCHASE\u001b[39m\u001b[38;5;124m'\u001b[39m\u001b[38;5;124m to finish): \u001b[39m\u001b[38;5;124m\"\u001b[39m)\u001b[38;5;241m.\u001b[39mstrip()\u001b[38;5;241m.\u001b[39mlower()\n\u001b[0;32m 10\u001b[0m \u001b[38;5;66;03m# Empty input\u001b[39;00m\n\u001b[0;32m 11\u001b[0m \u001b[38;5;28;01mif\u001b[39;00m product \u001b[38;5;241m==\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124m\"\u001b[39m:\n",
"File \u001b[1;32mc:\\Users\\sboub\\anaconda3\\Lib\\site-packages\\ipykernel\\kernelbase.py:1282\u001b[0m, in \u001b[0;36mKernel.raw_input\u001b[1;34m(self, prompt)\u001b[0m\n\u001b[0;32m 1280\u001b[0m msg \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mraw_input was called, but this frontend does not support input requests.\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[0;32m 1281\u001b[0m \u001b[38;5;28;01mraise\u001b[39;00m StdinNotImplementedError(msg)\n\u001b[1;32m-> 1282\u001b[0m \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_input_request(\n\u001b[0;32m 1283\u001b[0m \u001b[38;5;28mstr\u001b[39m(prompt),\n\u001b[0;32m 1284\u001b[0m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39m_parent_ident[\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mshell\u001b[39m\u001b[38;5;124m\"\u001b[39m],\n\u001b[0;32m 1285\u001b[0m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mget_parent(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mshell\u001b[39m\u001b[38;5;124m\"\u001b[39m),\n\u001b[0;32m 1286\u001b[0m password\u001b[38;5;241m=\u001b[39m\u001b[38;5;28;01mFalse\u001b[39;00m,\n\u001b[0;32m 1287\u001b[0m )\n",
"File \u001b[1;32mc:\\Users\\sboub\\anaconda3\\Lib\\site-packages\\ipykernel\\kernelbase.py:1325\u001b[0m, in \u001b[0;36mKernel._input_request\u001b[1;34m(self, prompt, ident, parent, password)\u001b[0m\n\u001b[0;32m 1322\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m:\n\u001b[0;32m 1323\u001b[0m \u001b[38;5;66;03m# re-raise KeyboardInterrupt, to truncate traceback\u001b[39;00m\n\u001b[0;32m 1324\u001b[0m msg \u001b[38;5;241m=\u001b[39m \u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInterrupted by user\u001b[39m\u001b[38;5;124m\"\u001b[39m\n\u001b[1;32m-> 1325\u001b[0m \u001b[38;5;28;01mraise\u001b[39;00m \u001b[38;5;167;01mKeyboardInterrupt\u001b[39;00m(msg) \u001b[38;5;28;01mfrom\u001b[39;00m\u001b[38;5;250m \u001b[39m\u001b[38;5;28;01mNone\u001b[39;00m\n\u001b[0;32m 1326\u001b[0m \u001b[38;5;28;01mexcept\u001b[39;00m \u001b[38;5;167;01mException\u001b[39;00m:\n\u001b[0;32m 1327\u001b[0m \u001b[38;5;28mself\u001b[39m\u001b[38;5;241m.\u001b[39mlog\u001b[38;5;241m.\u001b[39mwarning(\u001b[38;5;124m\"\u001b[39m\u001b[38;5;124mInvalid Message:\u001b[39m\u001b[38;5;124m\"\u001b[39m, exc_info\u001b[38;5;241m=\u001b[39m\u001b[38;5;28;01mTrue\u001b[39;00m)\n",
"\u001b[1;31mKeyboardInterrupt\u001b[0m: Interrupted by user"
]
}
],
"source": [
"#7. call all functions above in the appropriate sequence to execute the program and manage customer orders:\n",
"\n",
"# def List: products \n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"print('List of products:', products)\n",
"\n",
"# call Functions order:\n",
"#1. call Function : initialize_inventory(products)\n",
"initialize_inventory(products)\n",
"\n",
"#2. call Function : get_customer_orders()\n",
"get_customer_orders()\n",
"\n",
"\n",
"#3. call Function : update_inventory(customer_orders, inventory)\n",
"update_inventory(get_customer_orders(), initialize_inventory(products))\n",
"\n",
"#4. call Function : calculate_order_statistics(customer_orders, products)\n",
"order_statistics = calculate_order_statistics(customer_orders=get_customer_orders(), products=products)\n",
"\n",
"#5. call Function : print_order_statistics(order_statistics)\n",
"print_order_statistics(order_statistics)\n",
"\n",
"#6. call Function : print_updated_inventory(inventory)\n",
"print_updated_inventory(inventory)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "a378e516",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -61,7 +391,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down