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lab Solved #41

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168 changes: 163 additions & 5 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -41,18 +41,176 @@
},
{
"cell_type": "code",
"execution_count": null,
"execution_count": 11,
"id": "cc2c441d-9dcf-4817-b097-cf6cbe440846",
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Quantity cannot be negative. Please enter a valid quantity.\n",
"Inventory initialized successfully.\n",
"Current Inventory:\n",
"t-shirt: 100\n",
"mug: 100\n",
"hat: 100\n",
"book: 100\n",
"keychain: 100\n"
]
}
],
"source": [
"# your code goes here\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: #only accept positive number \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",
"\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"] #products for inventory\n",
"\n",
"inventory = initialize_inventory(products)\n",
"print(\"Inventory initialized successfully.\")\n",
"print(\"Current Inventory:\")\n",
"for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n"
]
},
{
"cell_type": "code",
"execution_count": 14,
"id": "db40e656",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: Only 47 mugs are available.\n",
"Order completed!\n"
]
}
],
"source": [
"def get_customer_orders(inventory):\n",
" customer_order = {} #empty order\n",
" while True:\n",
" try:\n",
" product_name = input(\"Enter the desired product: \").strip().lower()\n",
" if product_name not in inventory: #if user type an invalid product \n",
" raise ValueError(f\"{product_name} is not available in the inventory.\")\n",
" if inventory[product_name] <= 0:\n",
" raise ValueError(f\"{product_name} is out of stock.\")\n",
" \n",
" valid_quantity = False\n",
" while not valid_quantity:\n",
" try:\n",
" quantity = int(input(f\"Enter the quantity of {product_name} you want to order: \"))\n",
" if quantity <= 0:\n",
" raise ValueError(\"Quantity must be a positive number.\")\n",
" if quantity > inventory[product_name]:\n",
" raise ValueError(f\"Only {inventory[product_name]} {product_name}s are available.\")\n",
" valid_quantity = True\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" \n",
" customer_order[product_name] = quantity\n",
" inventory[product_name] -= quantity # Update inventory\n",
" \n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" \n",
" another_product = input(\"Do you want to order more products? (yes/no): \").strip().lower()\n",
" if another_product != 'yes':\n",
" print(\"Order completed!\")\n",
" break\n",
" return customer_order\n",
"\n",
"customer_order = get_customer_orders(inventory) #get customer orders"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "d242be11",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"mugis not available\n",
"None\n"
]
}
],
"source": [
"\n",
"def update_inventory(customer_order, inventory):\n",
" for product in customer_order:\n",
" try:\n",
" if product in inventory:\n",
" if inventory[product]>0:\n",
" inventory[product]-=1\n",
" else:\n",
" print(f\"{product} is not available\")\n",
" else:\n",
" raise KeyError(f\"{product} doen't exist in this inventory\")\n",
" except KeyError as e:\n",
" print(e)\n",
" \n",
"\n",
"print(update_inventory(customer_order, inventory))"
]
},
{
"cell_type": "code",
"execution_count": 27,
"id": "3840e09e",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Order Statistics:\n",
"Total Products Ordered: 1\n",
"Percentage of Products Ordered: 20.00%\n"
]
}
],
"source": [
"# your code goes here"
"def calculate_order_statistics(customer_order, products):\n",
" total_products_ordered = len(customer_order)\n",
" total_products = 0 \n",
" try:\n",
" total_products_ordered = len(customer_order)\n",
" percentage_products_ordered = (total_products_ordered / len(products) * 100)\n",
" return total_products_ordered, percentage_products_ordered\n",
" except ZeroDivisionError: \n",
" print(f\"Error: the list can't be empty\")\n",
" \n",
"result = calculate_order_statistics(customer_order, products)\n",
"# Print the order statistics\n",
"print(f\"Order Statistics:\\nTotal Products Ordered: {result[0]}\\nPercentage of Products Ordered: {result[1]:.2f}%\")\n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "venv",
"language": "python",
"name": "python3"
},
Expand All @@ -66,7 +224,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.1"
}
},
"nbformat": 4,
Expand Down