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Solved error handling lab #682

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170 changes: 169 additions & 1 deletion lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,174 @@
"\n",
"4. Test your code by running the program and deliberately entering invalid quantities and product names. Make sure the error handling mechanism works as expected.\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "4367d59d-9d96-409b-9750-e32d5a984911",
"metadata": {},
"outputs": [],
"source": [
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "a606e6f9-3c4c-4b79-9c36-09fc22d6478e",
"metadata": {},
"outputs": [],
"source": [
"def initialize_inventory(products):\n",
" inventory = {product: int(input(f\"Enter the quantity of {product}s available: \")) for product in products}\n",
" return inventory "
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "f42e4e35-729c-4e49-b643-8e661aa91638",
"metadata": {},
"outputs": [],
"source": [
"def get_customer_orders(inventory):\n",
" while True:\n",
" try:\n",
" number_orders = int(input(\"Enter the number of customer orders: \"))\n",
"\n",
" if number_orders < 0:\n",
" raise ValueError\n",
"\n",
" break\n",
"\n",
" except ValueError:\n",
" print(\"Invalid number of orders. Please enter a valid number.\")\n",
"\n",
" customer_orders = set()\n",
"\n",
" while len(customer_orders) < number_orders:\n",
" try:\n",
" product = input(\"Enter a product you want to order: \")\n",
"\n",
" if product not in inventory:\n",
" raise ValueError\n",
"\n",
" if inventory[product] <= 0:\n",
" raise ValueError\n",
"\n",
" customer_orders.add(product)\n",
"\n",
" except ValueError:\n",
" print(\"Invalid product. Please enter a valid product with stock available.\")\n",
"\n",
" return customer_orders"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "1171e0c6-1c66-4b86-be41-3c27bc1912d8",
"metadata": {},
"outputs": [],
"source": [
"def calculate_total_price(customer_orders):\n",
" total_price = 0\n",
"\n",
" for product in customer_orders:\n",
" valid_price = False\n",
"\n",
" while not valid_price:\n",
" try:\n",
" price = float(input(f\"Enter the price of {product}: \"))\n",
"\n",
" if price < 0:\n",
" raise ValueError(\"Price cannot be negative.\")\n",
"\n",
" total_price += price\n",
" valid_price = True\n",
"\n",
" except ValueError:\n",
" print(\"Invalid price. Please enter a valid price.\")\n",
"\n",
" return total_price"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "ec978feb-5fcc-4aa1-b684-49e93c50eaa7",
"metadata": {},
"outputs": [],
"source": [
"def update_inventory(customer_orders, inventory):\n",
" for product in customer_orders:\n",
" inventory[product] = inventory[product] - 1\n",
"\n",
" filtered_inventory = {\n",
" product: quantity\n",
" for product, quantity in inventory.items()\n",
" if quantity > 0 \n",
" } \n",
"\n",
" return filtered_inventory"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "5177e3b1-6114-4904-8777-1c108e39227f",
"metadata": {},
"outputs": [],
"source": [
"def calculate_order_statistics(customer_orders, products):\n",
" total_products_ordered = len(customer_orders)\n",
" percentage = (total_products_ordered / len(products)) * 100\n",
"\n",
" return total_products_ordered, percentage"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "d6408d32-4267-4018-9406-1079a70a4b05",
"metadata": {},
"outputs": [],
"source": [
"def print_order_statistics(total_products_ordered, percentage):\n",
" print()\n",
" print(\"Order Statistics:\")\n",
" print(f\"Total Products Ordered: {total_products_ordered}\")\n",
" print(f\"Percentage of Unique Products Ordered: {percentage}\")"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "14d7a82e-b64a-46f3-a44c-1f3fd9d58118",
"metadata": {},
"outputs": [],
"source": [
"inventory = initialize_inventory(products)\n",
"customer_orders = get_customer_orders(inventory)\n",
"\n",
"total_products_ordered, percentage = calculate_order_statistics(\n",
" customer_orders,\n",
" products\n",
")\n",
"\n",
"print_order_statistics(total_products_ordered, percentage)\n",
"\n",
"inventory = update_inventory(customer_orders, inventory)\n",
"\n",
"print()\n",
"print(\"Updated Inventory:\")\n",
"\n",
"[print(f\"{product}: {quantity}\") for product, quantity in inventory.items()]\n",
"\n",
"total_price = calculate_total_price(customer_orders)\n",
"\n",
"print(f\"Total Price: {total_price}\")"
]
}
],
"metadata": {
Expand All @@ -90,7 +258,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.9"
}
},
"nbformat": 4,
Expand Down