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‘lab-python-error-handling’ #297

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‘lab-python-error-handling’ #297

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156 changes: 155 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 +72,160 @@
"\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": 2,
"id": "b893859f-815c-4d51-abd6-c13a825d213d",
"metadata": {},
"outputs": [],
"source": [
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"inventory = {}\n",
"\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:\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",
"def get_customer_orders(inventory):\n",
" customer_orders = set()\n",
" while True:\n",
" try:\n",
" orders_number = int(input(\"Enter the number of customer orders:\"))\n",
" if orders_number <= 0:\n",
" print(\"Please enter a number above 0.\")\n",
" continue\n",
" except ValueError as error:\n",
" print(f\"{error}! Please enter a valid number!\")\n",
" continue\n",
" \n",
" for orders in range(orders_number):\n",
" while True:\n",
" orders = input(f\"Enter a product name:\")\n",
" if orders in products:\n",
" customer_orders.add(orders)\n",
" break\n",
" else:\n",
" print(f\"Please choose one of the available products! Here are your options: {products}\")\n",
"\n",
" print(f\"Customer's orders : {customer_orders}\")\n",
" return customer_orders\n",
"\n",
"def update_inventory(customer_orders, inventory):\n",
" for product in customer_orders:\n",
" if product in inventory and inventory[product] > 0:\n",
" inventory[product] -= 1\n",
" return {product: qty for product, qty in inventory.items() if qty > 0}\n",
"\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",
" return total_products_ordered, percentage_ordered\n",
"\n",
"def print_order_statistics(order_statistics):\n",
" total_products_ordered, percentage_ordered = order_statistics\n",
" print(\"Order Statistics:\")\n",
" print(f\"Total Products Ordered: {total_products_ordered} \")\n",
" print(f\"Percentage of Products Ordered: {percentage_ordered} % \")\n",
"\n",
"def calculate_total_price():\n",
" total_price = 0\n",
" for product in customer_orders:\n",
" while True:\n",
" try:\n",
" price = float(input(f\"Enter the price of {product} : \"))\n",
" if price < 0:\n",
" print(\"Please enter a number above 0.\")\n",
" else:\n",
" total_price += price\n",
" break\n",
" except ValueError as error:\n",
" print(f\"{error}! Please enter a valid number.\")\n",
" print(f\"Total price:{total_price:.2f} €\")\n",
"\n",
"def print_updated_inventory(inventory):\n",
" for products, quantities in inventory.items():\n",
" print(f\"We have {quantities} {products}s!\")"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "d601dead-dc2c-4d61-bffa-b6a9ec8d971b",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Enter the quantity of t-shirts available: 6\n",
"Enter the quantity of mugs available: 4\n",
"Enter the quantity of hats available: 3\n",
"Enter the quantity of books available: 2\n",
"Enter the quantity of keychains available: 5\n",
"Enter the number of customer orders: 5\n",
"Enter a product name: mug\n",
"Enter a product name: book\n",
"Enter a product name: hat\n",
"Enter a product name: keychain\n",
"Enter a product name: mug\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Customer's orders : {'mug', 'keychain', 'book', 'hat'}\n",
"Order Statistics:\n",
"Total Products Ordered: 4 \n",
"Percentage of Products Ordered: 80.0 % \n",
"We have 6 t-shirts!\n",
"We have 3 mugs!\n",
"We have 2 hats!\n",
"We have 1 books!\n",
"We have 4 keychains!\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Enter the price of mug : 6\n",
"Enter the price of keychain : 3\n",
"Enter the price of book : 17\n",
"Enter the price of hat : 12\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Total price:38.00 €\n"
]
}
],
"source": [
"inventory = initialize_inventory(products)\n",
"customer_orders = get_customer_orders(inventory)\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",
"calculate_total_price()"
]
}
],
"metadata": {
Expand All @@ -90,7 +244,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.12.4"
}
},
"nbformat": 4,
Expand Down