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a-gal lab error handling completed2 #529

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191c8ce
lab completed
ab-gal Nov 24, 2025
5e38cbc
commit test 2
ab-gal Nov 24, 2025
bdbf6e9
a-gal lab error handling completed2
ab-gal Nov 24, 2025
25fc56a
Laboratory with step 1 added
ab-gal Nov 24, 2025
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275 changes: 274 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 +72,279 @@
"\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": "da597fad-a0d3-49b5-9e55-951efa7b25ed",
"metadata": {},
"outputs": [],
"source": [
"######\n",
"products=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"def initialize_inventory(products):\n",
" inventory={product: int(input(f\"quantity of {product}:\")) for product in products}\n",
" return inventory\n",
"#initialize_inventory(products)"
]
},
{
"cell_type": "code",
"execution_count": 1,
"id": "8465b3be-559e-4ee1-9322-6c550dd66de8",
"metadata": {},
"outputs": [],
"source": [
"#1\n",
"products=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\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",
"#initialize_inventory(products)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "c63957b1-80e5-4d2b-ad48-609ae4e67b89",
"metadata": {},
"outputs": [],
"source": [
"#2\n",
"def get_customer_orders():\n",
" customer_orders=set()\n",
" NumberOrders = int(input(f\"number of orders:\"))\n",
" while NumberOrders <= 0:\n",
" print( f\"enter a correct order number\")\n",
" NumberOrders = int(input(f\"number of orders:\"))\n",
" while NumberOrders>0:\n",
" customer_product=input(f\"add a product from the list {products}:\") \n",
" customer_orders.update({customer_product} if customer_product in products else {})\n",
" NumberOrders -= 1 if customer_product in products else 0\n",
" return customer_orders\n",
"#get_customer_orders()"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "de663730-e768-42af-87d7-9487ff84386b",
"metadata": {},
"outputs": [],
"source": [
"#d"
]
},
{
"cell_type": "code",
"execution_count": 3,
"id": "0813dc4f-ebc6-48ff-b5c6-79bfdb6154cc",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the quantity of t-shirts available: 5\n",
"Enter the quantity of mugs available: 5\n",
"Enter the quantity of hats available: 5\n",
"Enter the quantity of books available: 5\n",
"Enter the quantity of keychains available: 5\n",
"number of orders: 2\n",
"add a product from the list ['t-shirt', 'mug', 'hat', 'book', 'keychain']: book\n",
"add a product from the list ['t-shirt', 'mug', 'hat', 'book', 'keychain']: hat\n",
"enter a price for book: 5\n",
"enter a price for hat: '2\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"invalid input\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"enter a price for hat: '1\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"invalid input\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"enter a price for hat: 1\n"
]
},
{
"data": {
"text/plain": [
"'total price is 6'"
]
},
"execution_count": 3,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#3\n",
"inventory=initialize_inventory(products)\n",
"customer_orders=get_customer_orders()\n",
"def get_customer_orders_price(customer_orders):\n",
" CustomerPrices=[]\n",
" for product in customer_orders:\n",
" while True: \n",
" try:\n",
" price_str = input(f\"enter a price for {product}:\")\n",
" price= int(price_str)\n",
" if price <= 0:\n",
" raise ValueError (\"number must be positive \")\n",
" CustomerPrices.append(price)\n",
" break\n",
" except:\n",
" print(\"invalid input\")\n",
" return f\"total price is {sum(CustomerPrices)}\"\n",
"get_customer_orders_price(customer_orders)"
]
},
{
"cell_type": "markdown",
"id": "4d291cba-f559-440c-a6c6-22735fc3bcfe",
"metadata": {},
"source": [
"##### "
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "1183fe39-74bf-4714-90d4-fc9c1ebc41b2",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"quantity of t-shirt: 5\n",
"quantity of mug: 5\n",
"quantity of hat: 5\n",
"quantity of book: 5\n",
"quantity of keychain: 5\n",
"number of orders: 2\n"
]
}
],
"source": [
"#4\n",
"inventory=initialize_inventory(products)\n",
"customer_orders=get_customer_orders()\n",
"def update_inventory(customer_orders, inventory):\n",
" CustOrderList=list(customer_orders)\n",
" inventory = {order:inventory[order]-CustOrderList.count(order) for order in inventory if inventory[order]-CustOrderList.count(order)!=0}\n",
" return print(f\"updated inventory: {inventory}\")\n",
" \n",
"#update_inventory(customer_orders, inventory)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "e32ee759-ef3c-4488-b7c2-8d636ab7b8db",
"metadata": {},
"outputs": [],
"source": [
"#5\n",
"def calculate_order_statistics(customer_orders, products):\n",
" number_orders=len(customer_orders)\n",
" ordered_products=f\"{int((number_orders/len(products))*100)}%\"\n",
" return number_orders, ordered_products\n",
"\n",
"#calculate_order_statistics(customer_orders, products)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "bc27ddd3-91b9-4059-90ce-064cb13415ab",
"metadata": {},
"outputs": [],
"source": [
"#6\n",
"order_statistics = calculate_order_statistics(customer_orders, products)\n",
"def print_order_statistics(order_statistics):\n",
" print(f\"number of products:\", order_statistics[0], \"products %:\", order_statistics[1])\n",
"\n",
"#print_order_statistics(order_statistics)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "16d68e8f-8776-4714-b15a-d18a9ae0560d",
"metadata": {},
"outputs": [],
"source": [
"#7\n",
"def print_updated_inventory(inventory):\n",
" return print(inventory)\n",
"#print_updated_inventory(inventory)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "aee5f95e-9f3d-473a-965f-cac55411c971",
"metadata": {},
"outputs": [],
"source": [
"#8\n",
"products=[\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"inventory=initialize_inventory(products)\n",
"customer_orders=get_customer_orders()\n",
"inventory=update_inventory(customer_orders, inventory)\n",
"order_statistics=calculate_order_statistics(customer_orders, products)\n",
"print_order_statistics(order_statistics)\n",
"print_updated_inventory(inventory)\n",
"get_customer_orders_price(customer_orders)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "b56143ef-d926-437e-9f2e-ae08b8cc6b33",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "d31a79c6-efcf-49b9-8966-103126be583a",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
Expand All @@ -90,7 +363,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.4"
}
},
"nbformat": 4,
Expand Down