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lab complete #421

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200 changes: 197 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 +72,207 @@
"\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": 13,
"id": "a7e390fa-6a92-4208-9839-dddb139b9104",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the quantity of t-shirts available: 1\n",
"Enter the quantity of mugs available: 1\n",
"Enter the quantity of hats available: 1\n",
"Enter the quantity of books available: 1\n",
"Enter the quantity of keychains available: 1\n",
"Enter the number of customer orders: one\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: invalid literal for int() with base 10: 'one'\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the number of customer orders: -1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: Number of orders cannot be negative.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the number of customer orders: 1\n",
"Enter the name of one of the product : mugg\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: this product is not available. Please enter one that is.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the name of one of the product : mug\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"\n",
"Order Statistics:\n",
"Total Products Ordered: 1.\n",
"Percentage of Products Ordered: 20.00%. \n",
"\n",
"Updated Inventory: \n",
"t-shirt : 1\n",
"hat : 1\n",
"book : 1\n",
"keychain : 1\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the price of mug : 10\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Total Price : 10\n"
]
}
],
"source": [
"list_products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"def initialize_inventory ():\n",
" #inventory = {product : int(input(f\"Enter the quantity of {product} available: \")) for product in list_products}\n",
" inventory = {}\n",
" for product in list_products:\n",
" valid_quantity = False\n",
" while not valid_quantity:\n",
" try:\n",
" quantity = int(input(f\"Enter the quantity of {product}s available: \"))\n",
" if quantity < 0:\n",
" raise ValueError(\"Invalid quantity! Please enter a non-negative value.\")\n",
" valid_quantity = True\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" inventory[product] = quantity\n",
" return inventory\n",
"\n",
"def get_customer_orders(inventory):\n",
" customer_orders = []\n",
" while True:\n",
" try:\n",
" customer_status=int(input(\"Enter the number of customer orders:\"))\n",
" if customer_status < 0:\n",
" raise ValueError(\"Number of orders cannot be negative.\")\n",
" break\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" for i in range (customer_status):\n",
" while True:\n",
" product = input(f\"Enter the name of one of the product :\")\n",
" if product not in inventory:\n",
" print(\"Error: this product is not available. Please enter one that is.\")\n",
" elif inventory[product] <=0 :\n",
" print(f\"Error: {product} out of stock.\")\n",
" else:\n",
" customer_orders.append(product)\n",
" break\n",
" return customer_orders\n",
" \n",
"def calculate_total_price(customer_orders):\n",
" prices = {}\n",
" #prices = {product : round(float(input(f\"Enter the price of {product} : \")),1) for product in customer_orders }\n",
" for product in customer_orders :\n",
" valid_price = False\n",
" while not valid_price:\n",
" try: \n",
" price = int(input(f\"Enter the price of {product} : \"))\n",
" if price < 0 or not float(price):\n",
" raise ValueError(\"Invalid price ! Please enter a non-negative value in numbers.\")\n",
" valid_price = True\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" prices[product] = price \n",
" print(f\"Total Price : {sum(prices.values())}\")\n",
" return prices\n",
" \n",
"def update_inventory(customer_orders, inventory):\n",
" inventory = { product: (amount -1 if product in customer_orders else amount) for product, amount in inventory.items() if (product not in customer_orders and amount > 0) or\n",
" (product in customer_orders and amount > 1)} \n",
" return inventory\n",
"\n",
"def calculate_order_statistics (customer_orders,list_products,inventory) :\n",
" order_statistics = {}\n",
" total_prod_ordered = len(customer_orders)\n",
" order_statistics[\"total_prod_ordered\"] = total_prod_ordered\n",
" \n",
" total_inventory = len(list_products)\n",
" percentage_products_ordered = (total_prod_ordered / total_inventory)*100\n",
" order_statistics [\"percentage_products_ordered\"] = percentage_products_ordered\n",
" return order_statistics\n",
"\n",
"def print_order_statistics (order_statistics):\n",
" print(\"Order Statistics:\")\n",
" print(f\"Total Products Ordered: {order_statistics[\"total_prod_ordered\"]}.\")\n",
" print(f\"Percentage of Products Ordered: {order_statistics[\"percentage_products_ordered\"]:.2f}%. \")\n",
"\n",
"def print_updated_inventory (inventory) :\n",
" print(f\"Updated Inventory: \")\n",
" for product, quantity in inventory.items():\n",
" print (f\"{product} : {quantity}\")\n",
"\n",
"inventory = initialize_inventory ()\n",
"customer_orders = get_customer_orders(inventory)\n",
"print()\n",
"order_statistics = calculate_order_statistics (customer_orders,list_products,inventory)\n",
"print_order_statistics (order_statistics)\n",
"print()\n",
"inventory = update_inventory(customer_orders, inventory)\n",
"print_updated_inventory (inventory)\n",
"prices = calculate_total_price(customer_orders)\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "0fc3541e-14b0-4d36-87a2-745d1f7cbefe",
"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 +284,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.7"
}
},
"nbformat": 4,
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