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Lab Solved Error Handling #524

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189 changes: 186 additions & 3 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -72,13 +72,196 @@
"\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": 28,
"id": "12951cad-1c3c-41b7-98e0-ac49c70a7fa8",
"metadata": {},
"outputs": [],
"source": [
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
" for product in products:\n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n",
" if quantity >= 0:\n",
" inventory[product] = quantity\n",
" valid_input = True\n",
" else:\n",
" print(\"Quantity cannot be negative. Please enter a valid quantity.\")\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a valid quantity.\")\n",
" return inventory"
]
},
{
"cell_type": "code",
"execution_count": 38,
"id": "11fde404-b794-462b-a828-cbd31958806a",
"metadata": {},
"outputs": [],
"source": [
"def total_price(customer_orders):\n",
" prices = {} \n",
"\n",
" for product in customer_orders:\n",
" if isinstance(product, list):\n",
" product = product[0]\n",
" \n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" price = float(input(f\"Enter the price of {products}: \"))\n",
" if price >= 0:\n",
" prices[product] = price\n",
" valid_input = True\n",
" else:\n",
" print(\"Price cannot be negative. Please enter a valid price.\")\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a numeric value for the price.\")\n",
"\n",
" total = sum(prices.values())\n",
" return total"
]
},
{
"cell_type": "code",
"execution_count": 43,
"id": "3e36bb12-94e4-4931-93e5-35210db204a0",
"metadata": {},
"outputs": [],
"source": [
"def get_customer_orders(inventory):\n",
" \n",
" while True:\n",
" try:\n",
" user_order = int(input(\"Enter the number of customer orders: \"))\n",
" if user_order > 0:\n",
" break\n",
" else:\n",
" print(\"Number of orders must be positive. Please try again.\")\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a numeric value.\")\n",
"\n",
" customer_orders = []\n",
"\n",
" for i in range(user_order):\n",
" while True: \n",
" order = input(f\"Enter the name of a product that a customer wants to order: \").strip()\n",
"\n",
" if order not in inventory:\n",
" print(\"Product not found. Please enter a valid product.\")\n",
" elif inventory[order] <= 0:\n",
" print(f\"Sorry, {order} is out of stock. Please choose another product.\")\n",
" else:\n",
" customer_orders.append(order)\n",
" inventory[order] -= 1 # reducir stock\n",
" break \n",
"\n",
" return customer_orders"
]
},
{
"cell_type": "code",
"execution_count": 46,
"id": "842145f9-7ea0-44b7-a370-65eac47ee5c4",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the quantity of t-shirts available: 4\n",
"Enter the quantity of mugs available: 4\n",
"Enter the quantity of hats available: 4\n",
"Enter the quantity of books available: 4\n",
"Enter the quantity of keychains available: 4\n",
"Enter the number of customer orders: -1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Number of orders must be positive. Please try again.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the number of customer orders: 2\n",
"Enter the name of a product that a customer wants to order: pencil\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Product not found. Please enter a valid product.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the name of a product that a customer wants to order: book\n",
"Enter the name of a product that a customer wants to order: mug\n",
"Enter the price of ['t-shirt', 'mug', 'hat', 'book', 'keychain']: -4\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Price cannot be negative. Please enter a valid price.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the price of ['t-shirt', 'mug', 'hat', 'book', 'keychain']: 4.56\n",
"Enter the price of ['t-shirt', 'mug', 'hat', 'book', 'keychain']: 13.99\n"
]
},
{
"data": {
"text/plain": [
"18.55"
]
},
"execution_count": 46,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"inventory = initialize_inventory(products)\n",
"\n",
"customer_orders = get_customer_orders(inventory)\n",
"total_price(customer_orders)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "cade2383-c4b2-41d2-8eeb-2611375ec1e1",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python [conda env:base] *",
"language": "python",
"name": "python3"
"name": "conda-base-py"
},
"language_info": {
"codemirror_mode": {
Expand All @@ -90,7 +273,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down