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363 changes: 359 additions & 4 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -41,18 +41,373 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 1,
"id": "cc2c441d-9dcf-4817-b097-cf6cbe440846",
"metadata": {},
"outputs": [],
"source": [
"# your code goes here"
"# your code goes here\n",
"# Creamos una lista de productos\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "63c2f35b",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"ERROR: Quantity must be a non-negative integer.\n",
"Please, try again.\n",
"ERROR: Quantity must be a non-negative integer.\n",
"Please, try again.\n",
"t-shirt added succesfully.\n",
"mug added succesfully.\n",
"hat added succesfully.\n",
"book added succesfully.\n",
"keychain added succesfully.\n",
"Initial inventory: {'t-shirt': 2, 'mug': 3, 'hat': 9, 'book': 5, 'keychain': 6}\n"
]
}
],
"source": [
"# Definimos una funcion\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
" for product in products:\n",
" while True:\n",
" try:\n",
" quantity = input(f\"Enter the quantity of each {product} in the inventory: \")\n",
"\n",
" # Validacion manual: raise si no es entero no negativo\n",
" if not quantity.isdigit():\n",
" raise ValueError(\"Quantity must be a non-negative integer.\")\n",
" \n",
" quantity_int = int(quantity)\n",
" \n",
" if quantity_int < 0:\n",
" raise ValueError(\"Quantity cannot be negative.\")\n",
" \n",
" except ValueError as ve:\n",
" # Mensajes de error para el usuario\n",
" print(f\"ERROR: {ve}\")\n",
" print(\"Please, try again.\")\n",
"\n",
" else:\n",
" # Si no hay errores, guardamos el valor y salimos del bucle\n",
" inventory[product] = quantity_int\n",
" print(f\"{product} added succesfully.\")\n",
" break\n",
"\n",
" finally:\n",
" # Este bloque siempre se ejecuta\n",
" pass\n",
"\n",
" return inventory\n",
"inventory = initialize_inventory(products)\n",
"print(f\"Initial inventory: {inventory}\")\n"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "9fff47f7",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"ERROR Product not found. Enter a valid product name\n",
"Please, try again\n",
"t-shirt added to order\n",
"mug added to order\n",
"Customer orders: {'t-shirt', 'mug'}\n"
]
}
],
"source": [
"# Definimos otra funcion para pedir al usuario productos\n",
"def get_customer_order():\n",
" customer_orders = set()\n",
" while True:\n",
" try:\n",
" order = input(\"Enter the product name to order (or type 'done' to finish):\").strip().lower()\n",
"\n",
" # Validaciones basicas\n",
" if order == \"\":\n",
" raise ValueError (\"Input cannot be empty. Please enter a product name or 'done'.\")\n",
" \n",
" if order.lower() == 'done':\n",
" break\n",
"\n",
" # Validar si el producto aparece en la lista\n",
" product_list_lower = [p.lower() for p in products]\n",
" if order not in product_list_lower:\n",
" raise ValueError(\"Product not found. Enter a valid product name\")\n",
" \n",
" except ValueError as ve:\n",
" print(f\"ERROR {ve}\")\n",
" print(\"Please, try again\")\n",
"\n",
" except Exception as e:\n",
" print(f\"Unexpected error: {e}\")\n",
" print(\"Please, try again\")\n",
"\n",
" else:\n",
" # Encontrar el producto original\n",
" for product in products:\n",
" if product.lower() == order:\n",
" customer_orders.add(product)\n",
" print(f\"{product} added to order\")\n",
" break\n",
"\n",
" finally:\n",
" pass # Siempre se ejecuta\n",
"\n",
" return customer_orders\n",
"\n",
"customer_orders = get_customer_order()\n",
"print(f\"Customer orders: {customer_orders}\")"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "095f1d04",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"t-shirt updated successfully. Reaming: 1\n",
"mug updated successfully. Reaming: 2\n",
"Update inventory: {'t-shirt': 1, 'mug': 2, 'hat': 9, 'book': 5, 'keychain': 6}\n"
]
}
],
"source": [
"# Definimos otra funcion para actualizar inventario\n",
"def update_inventory(inventory, customer_orders):\n",
" for order in customer_orders:\n",
" try:\n",
" # Validar que el producto existe\n",
" if order not in inventory:\n",
" raise KeyError(f\"Product '{order}' does not exist in the inventory.\")\n",
" \n",
" # Validar que la cantidad no sea negativa\n",
" if inventory[order] > 0:\n",
" inventory[order] -= 1\n",
" print(f\"{order} updated successfully. Reaming: {inventory[order]}\")\n",
" else:\n",
" print(f\"The {order} is out of stock\")\n",
"\n",
" except KeyError as ke:\n",
" print(f\"ERROR: {ke}\")\n",
"\n",
" except ValueError as ve:\n",
" print(f\"ERROR: {ve}\")\n",
" \n",
" except Exception as e:\n",
" print(f\"Unexpected error: {e}\")\n",
" \n",
" else:\n",
" # Se ejecuta solo si no hubo errores\n",
" pass\n",
" finally:\n",
" # Se ejecuta siempre\n",
" pass\n",
"\n",
" return inventory\n",
"print(f\"Update inventory: {update_inventory(inventory, customer_orders)}\")"
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "d187c6b9",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"\n",
"Order Statitics: \n",
"Total number of products ordered: 2 \n",
"Percentage of total products ordered: 40.0%\n"
]
}
],
"source": [
"# Definimos otra función para imprimir las estadisticas del pedido\n",
"def calculate_order_statistics(products, customer_orders):\n",
" try:\n",
" # Validar que las listas no estén vacias\n",
" if len(products) == 0:\n",
" raise ValueError(\"Product list cannot be empty:\")\n",
" if not isinstance(customer_orders, (set, list, tuple)):\n",
" raise TypeError(\"Customer orders must be a set, list or tuple.\")\n",
" \n",
" total_products_ordered = len(customer_orders)\n",
" # Calcular porcentaje\n",
" percentage_ordered = (total_products_ordered / len(products)) * 100\n",
"\n",
" except (ValueError, TypeError) as ve:\n",
" print(f\"ERROR: {ve}\")\n",
" return 0, 0 # Devolvemos valores seguros\n",
" \n",
" except (Exception) as e:\n",
" print(f\"Unexpected erro: {e}\")\n",
" return 0, 0\n",
" else:\n",
" return total_products_ordered, percentage_ordered\n",
" \n",
" finally:\n",
" pass\n",
"\n",
"def print_order_statistics(order_statistics):\n",
" try:\n",
" total_products_ordered, percentage_ordered = order_statistics\n",
"\n",
" # Validar tipos\n",
" if not isinstance(total_products_ordered, int):\n",
" raise TypeError(\"Total products ordered must be an integer.\")\n",
" \n",
" if not isinstance(percentage_ordered, (int, float)):\n",
" raise TypeError(\"Percentage ordered must be a numeric value\")\n",
" \n",
" print(\"\\nOrder Statitics: \")\n",
" print(f\"Total number of products ordered: {total_products_ordered} \")\n",
" print(f\"Percentage of total products ordered: {percentage_ordered:}%\")\n",
" \n",
" except (ValueError, TypeError) as ve:\n",
" print(f\"ERROR: {ve}\")\n",
" \n",
" except (Exception) as e:\n",
" print(f\"Unexpected error: {e}\")\n",
"\n",
" finally:\n",
" pass\n",
"\n",
"order_statistics = calculate_order_statistics(products, customer_orders)\n",
"print_order_statistics(order_statistics)"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "e783c911",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"\n",
"Updated Inventory: \n",
"t-shirt: 1\n",
"mug: 2\n",
"hat: 9\n",
"book: 5\n",
"keychain: 6\n"
]
}
],
"source": [
"# Imprimos el inventario actualizado\n",
"def print_updated_inventory(inventory):\n",
" try:\n",
" # Validar que invetory sea un diccionario\n",
" if not isinstance(inventory, dict):\n",
" raise TypeError(\"Inventory must be a dictionary.\")\n",
" # Validar que no este vacio\n",
" if len(inventory) == 0:\n",
" raise ValueError(\"Inventory is empty. Nothing to print.\")\n",
" \n",
" except (TypeError, ValueError) as ve:\n",
" print(f\"ERROR: {ve}\")\n",
"\n",
" except Exception as e:\n",
" print(f\"Unexpected error: {e}\")\n",
"\n",
" else:\n",
" print(\"\\nUpdated Inventory: \")\n",
" for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n",
" \n",
" finally:\n",
" pass\n",
"\n",
"print_updated_inventory(inventory)"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "292c423f",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"t-shirt added succesfully.\n",
"mug added succesfully.\n",
"hat added succesfully.\n",
"book added succesfully.\n",
"keychain added succesfully.\n",
"ERROR Product not found. Enter a valid product name\n",
"Please, try again\n",
"t-shirt added to order\n",
"mug added to order\n",
"t-shirt updated successfully. Reaming: 8\n",
"mug updated successfully. Reaming: 7\n",
"\n",
"Order Statitics: \n",
"Total number of products ordered: 2 \n",
"Percentage of total products ordered: 40.0%\n",
"\n",
"Updated Inventory: \n",
"t-shirt: 8\n",
"mug: 7\n",
"hat: 7\n",
"book: 6\n",
"keychain: 5\n",
"\n",
"Program finished. Thank you!\n"
]
}
],
"source": [
"def main():\n",
" try:\n",
" inventory = initialize_inventory(products)\n",
" customer_orders = get_customer_order()\n",
" inventory = update_inventory(inventory, customer_orders)\n",
"\n",
" order_statistics = calculate_order_statistics(products, customer_orders)\n",
" print_order_statistics(order_statistics)\n",
"\n",
" print_updated_inventory(inventory)\n",
"\n",
" except Exception as e:\n",
" print(f\"Unexpected error in main program: {e}\")\n",
"\n",
" finally:\n",
" print(\"\\nProgram finished. Thank you!\")\n",
"main()"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -66,7 +421,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.9"
}
},
"nbformat": 4,
Expand Down