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297 changes: 297 additions & 0 deletions .ipynb_checkpoints/lab-python-data-structures-checkpoint.ipynb
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{
"cells": [
{
"cell_type": "markdown",
"metadata": {
"tags": []
},
"source": [
"# Lab | Data Structures "
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Exercise: Managing Customer Orders\n",
"\n",
"As part of a business venture, you are starting an online store that sells various products. To ensure smooth operations, you need to develop a program that manages customer orders and inventory.\n",
"\n",
"Follow the steps below to complete the exercise:\n",
"\n",
"1. Define a list called `products` that contains the following items: \"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\".\n",
"\n",
"2. Create an empty dictionary called `inventory`.\n",
"\n",
"3. Ask the user to input the quantity of each product available in the inventory. Use the product names from the `products` list as keys in the `inventory` dictionary and assign the respective quantities as values.\n",
"\n",
"4. Create an empty set called `customer_orders`.\n",
"\n",
"5. Ask the user to input the name of three products that a customer wants to order (from those in the products list, meaning three products out of \"t-shirt\", \"mug\", \"hat\", \"book\" or \"keychain\". Add each product name to the `customer_orders` set.\n",
"\n",
"6. Print the products in the `customer_orders` set.\n",
"\n",
"7. Calculate the following order statistics:\n",
" - Total Products Ordered: The total number of products in the `customer_orders` set.\n",
" - Percentage of Products Ordered: The percentage of products ordered compared to the total available products.\n",
" \n",
" Store these statistics in a tuple called `order_status`.\n",
"\n",
"8. Print the order statistics using the following format:\n",
" ```\n",
" Order Statistics:\n",
" Total Products Ordered: <total_products_ordered>\n",
" Percentage of Products Ordered: <percentage_ordered>% \n",
" ```\n",
"\n",
"9. Update the inventory by subtracting 1 from the quantity of each product. Modify the `inventory` dictionary accordingly.\n",
"\n",
"10. Print the updated inventory, displaying the quantity of each product on separate lines.\n",
"\n",
"Solve the exercise by implementing the steps using the Python concepts of lists, dictionaries, sets, and basic input/output operations. "
]
},
{
"cell_type": "code",
"execution_count": 71,
"metadata": {},
"outputs": [],
"source": [
"# creating a list that contains the items\n",
"\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]"
]
},
{
"cell_type": "code",
"execution_count": 72,
"metadata": {},
"outputs": [],
"source": [
"# creating an empty iventory\n",
"\n",
"inventory = {}"
]
},
{
"cell_type": "code",
"execution_count": 73,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Please enter the quantity of each product available in the inventory:\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Quantity for t-shirt: 67\n",
"Quantity for mug: 56\n",
"Quantity for hat: 44\n",
"Quantity for book: 89\n",
"Quantity for keychain: 99\n"
]
}
],
"source": [
"#3 ask the user to input the quantity of each product using a for loop to go through a list \n",
"\n",
"print(\"Please enter the quantity of each product available in the inventory:\")\n",
"\n",
"for product in products:\n",
" quantity = int(input(f\"Quantity for {product}: \")) # using input() inside a loop and casting the input to an int()\n",
" inventory[product] = quantity # assinging a value to a dictionary key"
]
},
{
"cell_type": "code",
"execution_count": 74,
"metadata": {},
"outputs": [],
"source": [
"#4 creating an empty set called customer_orders\n",
"\n",
"customer_orders = set()"
]
},
{
"cell_type": "code",
"execution_count": 75,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Please select three products to order from the following list:\n",
"['t-shirt', 'mug', 'hat', 'book', 'keychain']\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Enter product name 1/3: t-shirt\n",
"Enter product name 2/3: mug\n",
"Enter product name 3/3: keychain\n"
]
}
],
"source": [
"#5 ask the user to input the name of three products that a customer wants to order\n",
"\n",
"print(\"Please select three products to order from the following list:\")\n",
"print(products) # display the available options\n",
"\n",
"for i in range(3): # loop three times to get the three orders\n",
" order = input(f\"Enter product name {i+1}/3: \")\n",
" customer_orders.add(order)"
]
},
{
"cell_type": "code",
"execution_count": 76,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The customer ordered these products: {'keychain', 'mug', 't-shirt'}\n"
]
}
],
"source": [
"#6 print the products in the customer_orders set\n",
"\n",
"print(f\"The customer ordered these products: {customer_orders}\")"
]
},
{
"cell_type": "code",
"execution_count": 77,
"metadata": {},
"outputs": [],
"source": [
"#7 calculate orders statistics\n",
"# total products ordered: the total number of products in the customer_orders set\n",
"\n",
"total_products_ordered = len(customer_orders)\n",
"\n",
"# percentage of products ordered: the percentage of products ordered compared to the total available products\n",
"percentage_ordered = (total_products_ordered / len(products)) * 100\n",
"\n",
"# store these statistics in a tuple called order_status.\n",
"order_status = (total_products_ordered, percentage_ordered)"
]
},
{
"cell_type": "code",
"execution_count": 78,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Order Statistics:\n",
"Total Products Ordered: 3\n",
"Percentage of Products Ordered: 60.0%\n"
]
}
],
"source": [
"#8 print the order statistics\n",
"\n",
"print(\"Order Statistics:\")\n",
"print(f\"Total Products Ordered: {order_status[0]}\")\n",
"print(f\"Percentage of Products Ordered: {order_status[1]}%\")"
]
},
{
"cell_type": "code",
"execution_count": 79,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Inventory Updating...\n",
" - Sold one 'keychain'. Updated quantity: 98\n",
" - Sold one 'mug'. Updated quantity: 55\n",
" - Sold one 't-shirt'. Updated quantity: 66\n"
]
}
],
"source": [
"#9 update the inventory by subtracting 1 from the quantity of each product\n",
"\n",
"print(\"Inventory Updating...\")\n",
"for product in customer_orders:\n",
" if product in inventory: # check if product is in inventory\n",
" inventory[product] -= 1\n",
" print (f\" - Sold one '{product}'. Updated quantity: {inventory[product]}\")"
]
},
{
"cell_type": "code",
"execution_count": 80,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Updated Inventory:\n",
"t-shirt: 66\n",
"mug: 55\n",
"hat: 44\n",
"book: 89\n",
"keychain: 98\n"
]
}
],
"source": [
"#10 print the updated inventory \n",
"\n",
"print(\"Updated Inventory:\")\n",
"# .items() displays the key and value for each item in the dictionary\n",
"for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")"
]
},
{
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"execution_count": null,
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"outputs": [],
"source": []
}
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