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Completed lab #683

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151 changes: 150 additions & 1 deletion lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -72,6 +72,155 @@
"\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": "bf8b5a1b-f8fe-4884-8459-304d3c92fa23",
"metadata": {},
"outputs": [],
"source": [
"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": null,
"id": "0fd055ac-4edf-4107-93d1-4d672c4b5c73",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "b31d543a-7fa9-4058-a73f-3f3385133d83",
"metadata": {},
"outputs": [],
"source": [
"def calculate_total_price(customer_products):\n",
" total_price = 0\n",
"\n",
" for product in customer_orders:\n",
" valid_input = False\n",
"\n",
" while not valid_input:\n",
" try:\n",
" price = float(input(f\"Enter the price of {product}: \"))\n",
" if price >= 0:\n",
" total_price += price\n",
" valid_input = True\n",
" else:\n",
" print(\"Price cannot be negative. Please enter a valid price.\")\n",
" \n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a numeric price.\")\n",
"\n",
" return total_price"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "1164004c-a3a4-4710-961c-ff4b84769873",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "1a61dc37-649b-44f4-ac6f-9cd4911ee8ba",
"metadata": {},
"outputs": [],
"source": [
"def get_customer_orders(inventory):\n",
"\n",
" while True:\n",
" try:\n",
" number_of_orders = int(input(\"Enter the number of customer order: \"))\n",
"\n",
" if number_of_orders < 0:\n",
" print(\"Error: number of orders cannot be negative. Please try again.\")\n",
" break\n",
"\n",
" except ValueError:\n",
" print(\"Invalid input. Please enter a whole number. \")\n",
"\n",
" customer_orders = []\n",
" \n",
" for i in range(number_of_orders):\n",
" valid_product = False\n",
"\n",
" while not valid_product:\n",
" product_name = input(\"Enter the product name to order: \").lower()\n",
"\n",
" if product_name in inventory and inventory [product_name] > 0:\n",
" customer_orders.append(product_name)\n",
" valid_product = True\n",
" elif product_name not in inventory:\n",
" print(\"That product is not is inventory. Please enter a valid product name. \")\n",
" else:\n",
" print(\"That product is out of stock. Please choose another product.\")\n",
" \n",
" return customer_orders"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "0264d0c2-113b-41ea-87d0-0cfb027349ad",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "8f2a39d9-495f-4528-ae77-daeeb83e47dc",
"metadata": {},
"outputs": [],
"source": [
"if __name__ == \"__main__\":\n",
" products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
" product_prices = {\n",
" \"t-shirt\": 15,\n",
" \"mug\": 8,\n",
" \"hat\": 12,\n",
" \"book\" : 20,\n",
" \"keychain\": 5\n",
" }\n",
"\n",
" print(\"initialize Inventory\")\n",
" inventory = initialize_inventory(products)\n",
"\n",
" print(\"Get Customer Orders\")\n",
" customer_orders = get_customer_orders(inventory)\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "868a795e-39e2-4766-82af-673fdcfc3642",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
Expand All @@ -90,7 +239,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.14.6"
}
},
"nbformat": 4,
Expand Down