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Update lab-python-error-handling.ipynb #633

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14ff057
Update lab-python-error-handling.ipynb
Apr 17, 2026
1e3413b
Update lab-python-error-handling.ipynb
Apr 17, 2026
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177 changes: 175 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 +72,184 @@
"\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": "ff8cc87d",
"metadata": {},
"outputs": [],
"source": [
"# PASO 1: initialize_inventory() con Dictionary Comprehension\n",
"def initialize_inventory(products):\n",
" inventory = {product: int(input(f\"Enter the available quantity for {product}: \")) for product in products}\n",
" return inventory\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "af5a99ff",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n",
"Error: invalid literal for int() with base 10: ''\n"
]
}
],
"source": [
"# PASO 1: initialize_inventory() adaptado para que funcione con validación\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
"\n",
" for product in products:\n",
" valid_quantity = False\n",
"\n",
" while not valid_quantity:\n",
" try:\n",
" quantity = int(input(f\"Enter the available quantity for {product}: \"))\n",
"\n",
" if quantity < 0:\n",
" raise ValueError(\"Quantity cannot be negative.\")\n",
"\n",
" inventory[product] = quantity\n",
" valid_quantity = True\n",
"\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" return inventory\n",
"\n",
"\n",
"# PASO 2: get_customer_orders() con validación de número de pedidos y producto\n",
"def get_customer_orders(inventory):\n",
" customer_orders = set()\n",
"\n",
" valid_orders_number = False\n",
" while not valid_orders_number:\n",
" try:\n",
" num_orders = int(input(\"Enter the number of customer orders: \"))\n",
"\n",
" if num_orders < 0:\n",
" raise ValueError(\"Number of orders cannot be negative.\")\n",
"\n",
" valid_orders_number = True\n",
"\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" for i in range(num_orders):\n",
" valid_product = False\n",
"\n",
" while not valid_product:\n",
" try:\n",
" product = input(f\"Enter product name {i + 1}: \").strip()\n",
"\n",
" if product not in inventory:\n",
" raise ValueError(\"This product is not in the inventory.\")\n",
"\n",
" if inventory[product] <= 0:\n",
" raise ValueError(\"This product is out of stock.\")\n",
"\n",
" customer_orders.add(product)\n",
" valid_product = True\n",
"\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" return customer_orders\n",
"\n",
"\n",
"# PASO 3: calculate_total_price() con validación del precio\n",
"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 as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" return total_price\n",
"\n",
"\n",
"# PASO 4: update_inventory() para restar stock y eliminar productos con 0\n",
"def update_inventory(customer_orders, inventory):\n",
" updated_inventory = {}\n",
"\n",
" for product, quantity in inventory.items():\n",
" if product in customer_orders:\n",
" quantity -= 1\n",
"\n",
" if quantity > 0:\n",
" updated_inventory[product] = quantity\n",
"\n",
" return updated_inventory\n",
"\n",
"\n",
"# PASO 5: calculate_order_statistics() para calcular estadísticas del pedido\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",
" order_statistics = (total_products_ordered, percentage_ordered)\n",
" return order_statistics\n",
"\n",
"\n",
"# PASO 6: print_order_statistics() para imprimir estadísticas\n",
"def print_order_statistics(order_statistics):\n",
" print(\"Order Statistics:\")\n",
" print(f\"Total products ordered: {order_statistics[0]}\")\n",
" print(f\"Percentage of unique products ordered: {order_statistics[1]}%\")\n",
"\n",
"\n",
"# PASO 7: print_updated_inventory() para imprimir inventario actualizado\n",
"def print_updated_inventory(inventory):\n",
" print(\"Updated Inventory:\")\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n",
"\n",
"\n",
"# PASO 8: ejecución principal del programa\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"inventory = initialize_inventory(products)\n",
"customer_orders = get_customer_orders(inventory)\n",
"total_price = calculate_total_price(customer_orders)\n",
"inventory = update_inventory(customer_orders, inventory)\n",
"order_statistics = calculate_order_statistics(customer_orders, products)\n",
"\n",
"print(f\"Total price of the customer order: {total_price}\")\n",
"print_order_statistics(order_statistics)\n",
"print_updated_inventory(inventory)"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -90,7 +263,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.14.4"
}
},
"nbformat": 4,
Expand Down