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Solved error handling lab #672

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159 changes: 157 additions & 2 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -72,11 +72,166 @@
"\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": 1,
"id": "565e0de5",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"\n",
"Order Statistics:\n",
"Total Products Ordered: 2\n",
"Percentage of Unique Products Ordered: 40.0\n",
"\n",
"Updated Inventory:\n",
"t-shirt: 5\n",
"mug: 4\n",
"hat: 2\n",
"book: 2\n",
"Total Price: 15.0\n"
]
}
],
"source": [
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
"\n",
" for product in products:\n",
" while True:\n",
" try:\n",
" quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n",
"\n",
" if quantity < 0:\n",
" raise ValueError(\"Quantity cannot be negative.\")\n",
"\n",
" inventory[product] = quantity\n",
" break\n",
"\n",
" except ValueError as error:\n",
" print(f\"Invalid quantity: {error}\")\n",
"\n",
" return inventory\n",
"\n",
"\n",
"def get_customer_orders(inventory):\n",
" customer_orders = set()\n",
"\n",
" while True:\n",
" try:\n",
" number_of_orders = int(input(\"Enter the number of customer orders: \"))\n",
"\n",
" if number_of_orders < 0:\n",
" raise ValueError(\"Number of orders cannot be negative.\")\n",
"\n",
" break\n",
"\n",
" except ValueError as error:\n",
" print(f\"Invalid number of orders: {error}\")\n",
"\n",
" for _ in range(number_of_orders):\n",
" while True:\n",
" try:\n",
" order = input(\n",
" \"Enter the name of a product that a customer wants to order: \"\n",
" )\n",
"\n",
" if order not in inventory:\n",
" raise ValueError(\"Product does not exist.\")\n",
"\n",
" if inventory[order] <= 0:\n",
" raise ValueError(\"Product is out of stock.\")\n",
"\n",
" customer_orders.add(order)\n",
" break\n",
"\n",
" except ValueError as error:\n",
" print(f\"Invalid product: {error}\")\n",
"\n",
" return customer_orders\n",
"\n",
"\n",
"def calculate_order_statistics(customer_orders, products):\n",
" total_products_ordered = len(customer_orders)\n",
" percentage_ordered = (total_products_ordered / len(products)) * 100\n",
"\n",
" return total_products_ordered, percentage_ordered\n",
"\n",
"\n",
"def update_inventory(inventory, customer_orders):\n",
" for product in customer_orders:\n",
" inventory[product] -= 1\n",
"\n",
" inventory = {\n",
" product: quantity\n",
" for product, quantity in inventory.items()\n",
" if quantity > 0\n",
" }\n",
"\n",
" return inventory\n",
"\n",
"\n",
"def calculate_total_price(customer_orders):\n",
" total_price = 0\n",
"\n",
" for product in customer_orders:\n",
" while True:\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",
" break\n",
"\n",
" except ValueError as error:\n",
" print(f\"Invalid price: {error}\")\n",
"\n",
" return total_price\n",
"\n",
"\n",
"def print_order_statistics(order_statistics):\n",
" print(\"\\nOrder Statistics:\")\n",
" print(f\"Total Products Ordered: {order_statistics[0]}\")\n",
" print(f\"Percentage of Unique Products Ordered: {order_statistics[1]}\")\n",
"\n",
"\n",
"def print_updated_inventory(inventory):\n",
" print(\"\\nUpdated Inventory:\")\n",
"\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n",
"\n",
"\n",
"inventory = initialize_inventory(products)\n",
"\n",
"customer_orders = get_customer_orders(inventory)\n",
"\n",
"order_statistics = calculate_order_statistics(customer_orders, products)\n",
"\n",
"inventory = update_inventory(inventory, customer_orders)\n",
"\n",
"total_price = calculate_total_price(customer_orders)\n",
"\n",
"print_order_statistics(order_statistics)\n",
"\n",
"print_updated_inventory(inventory)\n",
"\n",
"print(f\"Total Price: {total_price}\")"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -90,7 +245,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.14.6"
}
},
"nbformat": 4,
Expand Down