diff --git a/lab-python-error-handling.ipynb b/lab-python-error-handling.ipynb index f4c6ef6..83ad090 100644 --- a/lab-python-error-handling.ipynb +++ b/lab-python-error-handling.ipynb @@ -72,11 +72,180 @@ "\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": "2ce25673", + "metadata": {}, + "outputs": [], + "source": [ + "def manage_orders():\n", + " def initialize_inventory(products):\n", + " inventory = {}\n", + " products = [item.lower().strip() for item in products]\n", + " for product in products:\n", + " while True:\n", + " try:\n", + " quantity = int(input(f\"Enter quantity of {product}: \").strip())\n", + " if quantity >= 0:\n", + " inventory[product] = quantity\n", + " break\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", + " \n", + " return inventory\n", + "\n", + " def get_customer_orders(inventory):\n", + " customer_orders = set()\n", + "\n", + " while True:\n", + " try:\n", + " order = input('Enter the name of the product to purchase: ').strip().lower()\n", + "\n", + " if order not in inventory:\n", + " raise KeyError\n", + " if inventory[order] <= 0:\n", + " raise ValueError\n", + " \n", + " customer_orders.add(order)\n", + " inventory[order] -= 1\n", + " except KeyError:\n", + " print(f'Product {order} not found')\n", + " except ValueError:\n", + " print(f'Sorry, {order} is out of stock')\n", + " \n", + " validation = input(\"Do you want to buy more items? (yes/no): \").strip().lower()\n", + " while validation not in ('yes','no'):\n", + " print(f\"'{validation}' is not a correct option. Please select 'yes' or 'no'.\", \"\\n\")\n", + " validation = input(\"Do you want to buy more items? (yes/no): \").strip().lower() \n", + "\n", + " if validation == \"no\":\n", + " break \n", + "\n", + " print(\"------Customer´s order------\")\n", + " print (f\"The customer has ordered {customer_orders}\", \"\\n\")\n", + "\n", + " return customer_orders\n", + " \n", + " def calculate_order_statistics(customer_orders,products):\n", + "\n", + " total_products_ordered = len(customer_orders)\n", + " percentage_ordered = round((total_products_ordered/len(products))*100,1)\n", + "\n", + " return total_products_ordered, percentage_ordered\n", + "\n", + " def print_order_statistics(order_statistics):\n", + "\n", + " total_products_ordered, percentage_of_products_ordered = order_statistics\n", + " print(\"------Order Statistics------\")\n", + " print(f\"Total products ordered: {total_products_ordered}\")\n", + " print(f\"Percentage of products ordered: {percentage_of_products_ordered}%\",\"\\n\")\n", + "\n", + " def print_updated_inventory(inventory):\n", + " print(\"------Updated inventory------\")\n", + " for key,value in inventory.items():\n", + " print(f\"{key}: {value}\")\n", + " print()\n", + "\n", + " def calculate_total_price(customer_orders):\n", + "\n", + " prices_list = []\n", + " for product in customer_orders:\n", + "\n", + " while True:\n", + " try:\n", + " user_input = float(input(f'Enter the price of one {product}').replace(',','.'))\n", + " if user_input >= 0:\n", + " prices_list.append(user_input)\n", + " break\n", + " else:\n", + " print('Price cannot be negative. Please enter a valid price')\n", + " except ValueError:\n", + " print('Invalid input. Price has be a number.')\n", + "\n", + " print('------Receipt------')\n", + " for price,item in zip(prices_list,list(customer_orders)):\n", + " print(f'The price of one {item} is: {price}$ ') \n", + "\n", + " sum_prices = round(sum(prices_list),1)\n", + " \n", + " return sum_prices\n", + "\n", + " products = [\"T-shirt\", \"MUg\", \"hat\", \"bOok\", \"keychain\"]\n", + "\n", + " inventory = initialize_inventory(products) \n", + " print(\"------Availability of products------\")\n", + " for item,value in inventory.items():\n", + " print(item,\":\",value) \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", + " total = calculate_total_price(customer_orders)\n", + " print(f'the total price is: {total}$')" + ] + }, + { + "cell_type": "code", + "execution_count": 4, + "id": "d492c33d", + "metadata": {}, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "------Availability of products------\n", + "t-shirt : 1\n", + "mug : 1\n", + "hat : 1\n", + "book : 1\n", + "keychain : 1\n", + "Product mu not found\n", + "Sorry, mug is out of stock\n", + "'45' is not a correct option. Please select 'yes' or 'no'. \n", + "\n", + "------Customer´s order------\n", + "The customer has ordered {'mug'} \n", + "\n", + "------Order Statistics------\n", + "Total products ordered: 1\n", + "Percentage of products ordered: 20.0% \n", + "\n", + "------Updated inventory------\n", + "t-shirt: 1\n", + "mug: 0\n", + "hat: 1\n", + "book: 1\n", + "keychain: 1\n", + "\n", + "Invalid input. Price must be a number.\n", + "Price cannot be negative. Please enter a valid price\n", + "------Receipt------\n", + "The price of one mug is: 34.5$ \n", + "the total price is: 34.5$\n" + ] + } + ], + "source": [ + "manage_orders()" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "2fa4bb28", + "metadata": {}, + "outputs": [], + "source": [] } ], "metadata": { "kernelspec": { - "display_name": "Python 3 (ipykernel)", + "display_name": "Python 3", "language": "python", "name": "python3" }, @@ -90,7 +259,7 @@ "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", - "version": "3.9.13" + "version": "3.14.4" } }, "nbformat": 4,