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finished error handling lab #561

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154 changes: 152 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 +72,161 @@
"\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": 4,
"id": "49685fe2",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Quantity cannot be negative. Please enter a valid quantity.\n",
"Quantity cannot be negative. Please enter a valid quantity.\n",
"Invalid input. Please enter a valid quantity.\n"
]
}
],
"source": [
"products = [\"t-shirt\", \"mug\", \"book\", \"hat\", \"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\n",
"inventory = initialize_inventory(products)"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "895ab404",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt': 5, 'mug': 3, 'book': 0, 'hat': 6, 'keychain': 4}\n"
]
}
],
"source": [
"print(inventory)"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "7a6301ab",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error. Please enter a numeric value.\n",
"Number of product cannot be negative. Please enter the order again.\n",
"Error. papa is not in the inventory\n",
"Sorry book it's out of stock\n"
]
}
],
"source": [
"def get_customer_orders(inventory):\n",
" customer_order = {}\n",
"\n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" quantity_orders = int(input(f\"How many products do you want to order: \"))\n",
" if quantity_orders > 0:\n",
" valid_input = True\n",
" else:\n",
" print(\"Number of product cannot be negative. Please enter the order again.\")\n",
" except ValueError: \n",
" print(\"Error. Please enter a numeric value.\")\n",
"\n",
" for o in range(quantity_orders):\n",
" valid_product = False\n",
" while not valid_product:\n",
" try:\n",
" order = input(\"Please enter the name of the product: \")\n",
" stock = inventory[order]\n",
" if stock > 0:\n",
" customer_order[order] = order\n",
" valid_product = True\n",
" else:\n",
" print(f\"Sorry {order} it's out of stock\")\n",
" except KeyError:\n",
" print(f\"Error. {order} is not in the inventory\")\n",
" \n",
" return customer_order\n",
"\n",
"customer_order = get_customer_orders(inventory)"
]
},
{
"cell_type": "code",
"execution_count": 17,
"id": "5ecc0f4c",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Price cannot be a word. Enter a number.\n",
"Price cannot be negative. Enter price again.\n",
"The order's total price is: 20.0\n"
]
}
],
"source": [
"def products_price (customer_order):\n",
" prices = {}\n",
"\n",
" for product in customer_order:\n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" price = float(input(f\"Please introduce the price of {product} in the customer order: \"))\n",
" if price >= 0:\n",
" prices[product] = price\n",
" valid_input = True\n",
"\n",
" else:\n",
" print(\"Price cannot be negative. Enter price again.\")\n",
"\n",
" except ValueError:\n",
" print(\"Price cannot be a word. Enter a number.\")\n",
" \n",
" \n",
" total_price = sum(prices.values())\n",
" print(f\"The order's total price is: {total_price}\")\n",
" \n",
" return total_price \n",
"\n",
"prices = products_price(customer_order) \n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -90,7 +240,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.9"
}
},
"nbformat": 4,
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