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290 changes: 290 additions & 0 deletions .ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb
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{
"cells": [
{
"cell_type": "markdown",
"id": "d3bfc191-8885-42ee-b0a0-bbab867c6f9f",
"metadata": {
"tags": []
},
"source": [
"# Lab | Flow Control"
]
},
{
"cell_type": "markdown",
"id": "3851fcd1-cf98-4653-9c89-e003b7ec9400",
"metadata": {},
"source": [
"## Exercise: Managing Customer Orders Optimized\n",
"\n",
"In the last lab, you were starting an online store that sells various products. To ensure smooth operations, you developed a program that manages customer orders and inventory.\n",
"\n",
"You did so without using flow control. Let's go a step further and improve this code.\n",
"\n",
"Follow the steps below to complete the exercise:\n",
"\n",
"1. Look at your code from the lab data structures, and improve repeated code with loops.\n",
"\n",
"2. Instead of asking the user to input the name of three products that a customer wants to order, do the following:\n",
" \n",
" a. Prompt the user to enter the name of a product that a customer wants to order.\n",
" \n",
" b. Add the product name to the \"customer_orders\" set.\n",
" \n",
" c. Ask the user if they want to add another product (yes/no).\n",
" \n",
" d. Continue the loop until the user does not want to add another product.\n",
"\n",
"3. Instead of updating the inventory by subtracting 1 from the quantity of each product, only do it for the products that were ordered (those in \"customer_orders\")."
]
},
{
"cell_type": "code",
"execution_count": 6,
"id": "737186fb-baab-4573-801b-4afc86142fe6",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Available products: ['t-shirt', 'mug', 'hat', 'book', 'keychain']\n"
]
}
],
"source": [
"# defining a list of products\n",
"\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"print(\"Available products:\", products)"
]
},
{
"cell_type": "code",
"execution_count": 7,
"id": "09a4d3eb-bf0a-4c5b-a203-e3b29f8c2415",
"metadata": {},
"outputs": [],
"source": [
"# creating an empty iventory\n",
"\n",
"inventory = {}"
]
},
{
"cell_type": "code",
"execution_count": 8,
"id": "4cf96427-0da5-4c4c-9eab-28c5b9fda659",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Please enter the quantity of each prodcut:\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter quantity for t-shirt: 67\n",
"Enter quantity for mug: 87\n",
"Enter quantity for hat: 56\n",
"Enter quantity for book: 34\n",
"Enter quantity for keychain: 45\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Current Inventory: {'t-shirt': 67, 'mug': 87, 'hat': 56, 'book': 34, 'keychain': 45}\n"
]
}
],
"source": [
"# ask the user for the quantity of each product using a loop\n",
"\n",
"print(\"Please enter the quantity of each prodcut:\")\n",
"for product in products:\n",
" quantity = int(input(f\"Enter quantity for {product}: \"))\n",
" inventory[product] = quantity\n",
"\n",
"print (\"Current Inventory:\", inventory)"
]
},
{
"cell_type": "code",
"execution_count": 9,
"id": "a498fa34-fc80-4603-a46a-8338a0655302",
"metadata": {},
"outputs": [],
"source": [
"# create an empty set for customer orders\n",
"\n",
"customer_orders = set()\n",
"add_another = 'yes'"
]
},
{
"cell_type": "code",
"execution_count": 10,
"id": "2515900b-2291-4215-82be-80d3e8e14275",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Enter the product a customer wants to order: hat\n",
"Do you want to add another product? (yes/no): yes\n",
"Enter the product a customer wants to order: book\n",
"Do you want to add another product? (yes/no): yes\n",
"Enter the product a customer wants to order: keychain\n",
"Do you want to add another product? (yes/no): no\n"
]
}
],
"source": [
"# use a while loop and conditional logic to add prodcuts\n",
"\n",
"while add_another.lower() == 'yes':\n",
" order_item = input(\"Enter the product a customer wants to order: \")\n",
" if order_item in products:\n",
" customer_orders.add(order_item)\n",
" add_another = input(\"Do you want to add another product? (yes/no): \")\n",
" else:\n",
" print(\"That product is not available. Please choose from the list again\")\n"
]
},
{
"cell_type": "code",
"execution_count": 11,
"id": "97e0ad40-2a12-4968-9470-d099a869c7fb",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Products in customer order: {'hat', 'keychain', 'book'}\n"
]
}
],
"source": [
"# print the products in the customer_orders set\n",
"\n",
"print(\"Products in customer order:\", customer_orders)"
]
},
{
"cell_type": "code",
"execution_count": 12,
"id": "4e5a5ee8-f339-45c2-ba71-5b85f7978e3b",
"metadata": {},
"outputs": [],
"source": [
"# calculate order statistics\n",
"\n",
"total_products_ordered = len(customer_orders)\n",
"percentage_ordered = (total_products_ordered / len(products)) * 100"
]
},
{
"cell_type": "code",
"execution_count": 13,
"id": "4b4d4a80-a6ba-4e15-9bb1-2720473e3e67",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Order Statistics:\n",
"Total Products Ordered: 3\n",
"Percentage of Products Ordered: 60.0%\n"
]
}
],
"source": [
"# store statistics in a tuple and print \n",
"\n",
"order_status = (total_products_ordered, percentage_ordered)\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": 14,
"id": "e17beb4d-67b0-438b-be25-54102015e430",
"metadata": {},
"outputs": [],
"source": [
"# update the inventory only for ordered products using a loop\n",
"\n",
"for product in customer_orders:\n",
" if product in inventory:\n",
" inventory[product] -= 1"
]
},
{
"cell_type": "code",
"execution_count": 15,
"id": "7f82e8ea-c1b9-4e7a-9982-ab5275ea3993",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Updated Inventory:\n",
"t-shirt: 67\n",
"mug: 87\n",
"hat: 55\n",
"book: 33\n",
"keychain: 44\n"
]
}
],
"source": [
"# print the updated inventory\n",
"\n",
"print (\"Updated Inventory:\")\n",
"for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "a8be15f1-12d2-4500-9333-6f8879372e8c",
"metadata": {},
"outputs": [],
"source": []
}
],
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