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151 changes: 149 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 +72,158 @@
"\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": 5,
"id": "d544c39a",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Invalid input:invalid literal for int() with base 10: 's'\n",
"Sorry, this product is out of stock. Please choose another product.\n",
"Products in customer orders: {'hat', 'book'}\n",
"Order Statistics\n",
"Total Products Ordered: 2\n",
"Percentage of Products Ordered: 40.0 %\n",
"Updated Inventory:\n",
"t-shirt: 2\n",
"mug: 1\n",
"hat: 3\n",
"book: 5\n",
"keychain: 0\n",
"Total Price: 102.0\n"
]
},
{
"data": {
"text/plain": [
"102.0"
]
},
"execution_count": 5,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#1 \n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"#2\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",
"#3\n",
"def get_customer_orders(inventory):\n",
" customer_orders = set()\n",
" \n",
" while True: \n",
" try:\n",
" num_orders = int(input(\"How many products would you like to order'? \"))\n",
" if num_orders < 0:\n",
" raise ValueError(\"Number of orders cannot be negative.\")\n",
" break\n",
" except ValueError as error:\n",
" print(f\"Invalid input:{error}\")\n",
"\n",
" for _ in range(num_orders):\n",
" while True:\n",
" product = input(\"Enter the product you want to order: \").strip().lower()\n",
" if product not in inventory:\n",
" print(\"Product not found in inventory. Please enter a valid product\")\n",
" elif inventory[product] <= 0:\n",
" print(\"Sorry, this product is out of stock. Please choose another product.\")\n",
" else:\n",
" customer_orders.add(product)\n",
" break\n",
" \n",
" \n",
" print(\"Products in customer orders:\", customer_orders)\n",
" return customer_orders\n",
"\n",
"\n",
"#4\n",
"def update_inventory(inventory,customer_orders):\n",
" inventory = {item: inventory[item] - 1 if item in customer_orders else inventory[item] for item in inventory}\n",
"\n",
" inventory = {item: qty for item, qty in inventory.items() if qty > 0}\n",
" for item, qty in inventory.items():\n",
" print(f\"{item}, Quantity Left: {qty}\")\n",
"\n",
" return inventory\n",
"\n",
"def price_calculator(customer_orders):\n",
" total_price = 0.0\n",
"\n",
" for product in customer_orders:\n",
" valid_price = False\n",
" while not valid_price:\n",
" try:\n",
" price = float(input(f\"Enter the price of {product}: \"))\n",
" if price < 0:\n",
" raise ValueError(\"Price cannot be negative.\")\n",
" total_price += price\n",
" valid_price = True\n",
" except ValueError as error:\n",
" print(f\"Invalid input: {error}\")\n",
"\n",
" print(f\"Total Price: {total_price}\")\n",
" return total_price\n",
"\n",
"\n",
"#5\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_status = (total_products_ordered, percentage_ordered)\n",
" return order_status\n",
"#6\n",
"def print_order_statistics(order_statistics):\n",
" print(\"Order Statistics\")\n",
" print(\"Total Products Ordered:\", order_statistics[0])\n",
" print(\"Percentage of Products Ordered:\", order_statistics[1], \"%\")\n",
"#7\n",
"def print_updated_inventory(inventory):\n",
" print(\"Updated Inventory:\")\n",
" for item, qty in inventory.items():\n",
" print(f\"{item}: {qty}\")\n",
"\n",
"\n",
"inventory = initialize_inventory(products)\n",
"customer_orders = get_customer_orders(inventory)\n",
"order_statistics = calculate_order_statistics(customer_orders, products)\n",
"print_order_statistics(order_statistics)\n",
"print_updated_inventory(inventory)\n",
"price_calculator(customer_orders)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "271ae85e",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -90,7 +237,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.14.2"
}
},
"nbformat": 4,
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