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Update lab-python-error-handling.ipynb #627

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135 changes: 133 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 +72,142 @@
"\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": "7757d5de",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Invalid input. Please enter a valid quantity for {product}.\n",
"Quantity cannot be negative. Please enter a valid quantity.\n",
"Invalid input. Please enter a valid quantity for {product}.\n",
"Product not found in inventory. Please enter a valid product name.\n",
"Product not found in inventory. Please enter a valid product name.\n",
"\n",
"Order Statistics:\n",
"Total products ordered: 4\n",
"Percentage of unique products ordered: 100.00%\n",
"\n",
"Updated Inventory:\n",
"T-shirt: 4 units left\n",
"Pants: 4 units left\n",
"Shoes: 4 units left\n",
"Jacket: 4 units left\n",
"Invalid input. Please enter a valid price for {product}.\n",
"\n",
"Total price for the customer's order: 155.00€\n"
]
}
],
"source": [
"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 for {product}: \"))\n",
" if quantity < 0:\n",
" print(\"Quantity cannot be negative. Please enter a valid quantity.\")\n",
" continue\n",
" inventory[product] = quantity\n",
" break\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a valid quantity for {product}.\")\n",
" return inventory\n",
"\n",
"def get_costumers_orders():\n",
" while True:\n",
" try: \n",
" num_order = int(input(\"Enter the number of products in the customer's order: \"))\n",
" if num_order <= 0:\n",
" print(\"Number of products must be a positive integer. Please try again.\")\n",
" continue\n",
" break\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a valid number of products.\")\n",
" \n",
"\n",
" costumers_order = set()\n",
" for _ in range(num_order):\n",
" while True:\n",
" product_name = input(f\"Enter the name of the product that you want to order: \").strip().lower()\n",
" if product_name not in inventory:\n",
" print(\"Product not found in inventory. Please enter a valid product name.\")\n",
" elif inventory[product_name] <= 0:\n",
" print(f\"Sorry, {product_name} is out of stock. Please choose another product.\")\n",
" else:\n",
" costumers_order.add(product_name)\n",
" break\n",
" return costumers_order\n",
"\n",
"def calculate_total_price(costumers_order):\n",
" total_price = 0.0\n",
" for product in costumers_order:\n",
" while True:\n",
" try:\n",
" price = float(input(f\"Enter the price for {product}: \"))\n",
" if price < 0:\n",
" print(\"Price cannot be negative. Please enter a valid price.\")\n",
" continue\n",
" total_price += price\n",
"\n",
" break\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a valid price for {product}.\")\n",
" continue\n",
" return total_price\n",
"\n",
"def print_total_price(total_price):\n",
" print(f\"\\nTotal price for the customer's order: {total_price:.2f}€\")\n",
"\n",
"\n",
"def update_inventory(costumers_order, inventory):\n",
" inventory = {product: (quantity - 1 if product in costumers_order else quantity) for product, quantity in inventory.items() if (quantity -1 if product in costumers_order else quantity) > 0}\n",
" return inventory\n",
"\n",
"def calculate_order_statistics(costumers_order, products):\n",
" total_products_ordered = len(costumers_order)\n",
" percentage = (total_products_ordered / len(products)) * 100\n",
" return total_products_ordered, percentage\n",
"\n",
"def print_order_statistics(order_statistics):\n",
" total_products_ordered, percentage = order_statistics\n",
" \n",
" print(\"\\nOrder Statistics:\")\n",
" print(f\"Total products ordered: {total_products_ordered}\")\n",
" print(f\"Percentage of unique products ordered: {percentage:.2f}%\")\n",
"\n",
"def print_updated_inventory(inventory):\n",
" print(\"\\nUpdated Inventory:\")\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product.capitalize()}: {quantity} units left\")\n",
"\n",
"products = [\"t-shirt\", \"pants\", \"shoes\", \"jacket\"]\n",
"\n",
"inventory = initialize_inventory(products)\n",
"\n",
"costumers_order = get_costumers_orders()\n",
"\n",
"order_statistics = calculate_order_statistics(costumers_order, products)\n",
"print_order_statistics(order_statistics)\n",
"\n",
"inventory = update_inventory(costumers_order, inventory)\n",
"print_updated_inventory(inventory)\n",
"\n",
"valor_final = calculate_total_price(costumers_order)\n",
"print_total_price(valor_final) \n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": ".venv",
"language": "python",
"name": "python3"
},
Expand All @@ -90,7 +221,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.14.3"
}
},
"nbformat": 4,
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