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Lab solved #538

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204 changes: 201 additions & 3 deletions lab-python-error-handling.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,13 @@
"\n",
"```python\n",
"# Step 1: Define the function for initializing the inventory with error handling\n",
"\n",
"#while not valid_quantity: loop will repeatedly ask for the user input until valid_quantity is set to True. Essentially, this creates a loop that continues until the user provides a valid input.\n",
"\n",
"#valid_quantity is set to False. This acts as a flag to indicate that a valid quantity has not yet been entered.\n",
"\n",
"# if both checks pass without exceptions being raised, valid_quantity is set to True, which breaks the loop.\n",
"\n",
"def initialize_inventory(products):\n",
" inventory = {}\n",
" for product in products:\n",
Expand Down Expand Up @@ -72,13 +79,204 @@
"\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": 1,
"id": "ad020a96-5381-41f7-a0db-05b3b2f6a7c9",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the price per each t-shirt in customer orders 3\n",
"Enter the price per each mug in customer orders 4\n",
"Enter the price per each hat in customer orders 5\n",
"Enter the price per each book in customer orders 6\n",
"Enter the price per each keychain in customer orders 7\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
" tot_price_customer_orders is: 25.0\n"
]
}
],
"source": [
"#2\n",
"\n",
"customer_order = [\"bike\", \"hat\", \"mug\"]\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"def tot_price_customer_orders():\n",
" total_price = 0 # Don't forget to initialize total_price\n",
" for product in products: \n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" \n",
" product_price = float(input(f\"Enter the price per each {product} in customer orders\"))\n",
" \n",
" if product_price < 0: # Ensure consistent indentation for if statement\n",
" raise ValueError(\"Invalid price. Insert the price per product again\")\n",
" \n",
" total_price += product_price\n",
" valid_input = True\n",
" \n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
"\n",
" return total_price # Consistently indented with def line\n",
"\n",
"total_price = tot_price_customer_orders () # Call the function and store the result\n",
"\n",
"print (\" tot_price_customer_orders is:\", total_price)"
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "7bed5739-83b1-4ef2-beb3-84470ce70f39",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the number of customer orders: 2\n",
"Enter product name: hat\n",
"Enter product name: book\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"customer_orders are: {'hat', 'book'}\n"
]
}
],
"source": [
"#3\n",
"def get_customer_orders(n_of_orders):\n",
" customer_orders = set() # Initialize a set to collect unique product names\n",
" for _ in range(n_of_orders):\n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" product_name = input(\"Enter product name: \")\n",
" if not product_name.strip():\n",
" raise ValueError(\"Product name cannot be empty.\")\n",
" customer_orders.add(product_name) # Add to the set\n",
" valid_input = True\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" return customer_orders\n",
"\n",
"try:\n",
" n_of_orders = int(input(\"Enter the number of customer orders: \"))\n",
" if n_of_orders <= 0:\n",
" raise ValueError(\"The number of customer orders should be a positive integer.\")\n",
" \n",
" customer_orders = get_customer_orders(n_of_orders)\n",
" print(\"customer_orders are:\", customer_orders)\n",
"except ValueError as error:\n",
" print(f\"Error: {error}. Please restart the program and enter a valid number.\")"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "81d9eff6-cd54-49ce-96a6-4e7739c79b10",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the number of customer orders: 2\n",
"Enter product name that is available table\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Error: Product name is not available .\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter product name that is available book\n",
"Enter product name that is available mug\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"customer_orders are: {'book', 'mug'}\n"
]
}
],
"source": [
"#4\n",
"\n",
"inventory = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"def get_customer_orders(n_of_orders, inventory):\n",
" customer_orders = set() # Initialize a set to collect unique product names\n",
" for _ in range(n_of_orders):\n",
" valid_input = False\n",
" while not valid_input:\n",
" try:\n",
" product_name = input(\"Enter product name that is available\")\n",
" if product_name not in inventory:\n",
" raise ValueError(\"Product name is not available .\")\n",
" customer_orders.add(product_name) # Add to the set\n",
" valid_input = True\n",
" except ValueError as error:\n",
" print(f\"Error: {error}\")\n",
" return customer_orders\n",
"\n",
"try:\n",
" n_of_orders = int(input(\"Enter the number of customer orders: \"))\n",
" if n_of_orders <= 0:\n",
" raise ValueError(\"The number of customer orders should be a positive integer.\")\n",
" \n",
" customer_orders = get_customer_orders(n_of_orders, inventory)\n",
" print(\"customer_orders are:\", customer_orders)\n",
"except ValueError as error:\n",
" print(f\"Error: {error}. Please restart the program and enter a valid number.\")\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "f2d1d9ee-1233-4f51-aa74-a6c714d7384b",
"metadata": {},
"outputs": [],
"source": []
},
{
"cell_type": "code",
"execution_count": null,
"id": "c92a3e0c-16c1-4dce-ba96-f0febc5219c8",
"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 +288,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.5"
}
},
"nbformat": 4,
Expand Down