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Completed lab #702

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373 changes: 373 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",
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"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": "markdown",
"id": "ddbc1c72-f342-4945-8aed-3d8dd066e749",
"metadata": {},
"source": [
"## Solution"
]
},
{
"cell_type": "markdown",
"id": "40c1241e-aca1-4311-90fd-5ea6a0bcad99",
"metadata": {},
"source": [
"1. Look at your code from the lab data structures, and improve repeated code with loops."
]
},
{
"cell_type": "code",
"execution_count": 14,
"id": "90454303-01a1-40c2-a416-ed521640c2f8",
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"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Please tell me the number of t-shirts: 9\n",
"Please tell me the number of mugs: 9\n",
"Please tell me the number of hats: 9\n",
"Please tell me the number of books: 9\n",
"Please tell me the number of keychains: 9\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt': 9, 'mug': 9, 'hat': 9, 'book': 9, 'keychain': 9}\n"
]
}
],
"source": [
"#1. Define a list called products that contains the following items: \"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\".\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"#2. Create an empty dictionary called inventory.\n",
"inventory = {}\n",
"\n",
"#3. Ask the user to input the quantity of each product available in the inventory.\n",
" #Use the product names from the products list as keys in the inventory dictionary and assign the respective quantities as values.\n",
"#Once we review loops, the following code can be improved.\n",
"\n",
"for product in products:\n",
" inventory[product]=int(input(f'Please tell me the number of {product}s: '))\n",
"\n",
"print(inventory)\n"
]
},
{
"cell_type": "code",
"execution_count": 15,
"id": "39cfcd2d-cad7-46a9-bd69-55dd9fd45046",
"metadata": {},
"outputs": [],
"source": [
"#4. Create an empty set called customer_orders.\n",
"customer_orders = set()\n",
"total_products_ordered = {}\n"
]
},
{
"cell_type": "markdown",
"id": "62173814-d582-4d1e-bb8a-ec565d0c8c04",
"metadata": {},
"source": [
"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."
]
},
{
"cell_type": "code",
"execution_count": 16,
"id": "ecd67463-5abe-4041-84ac-8e73222e818b",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Do you want to order a t-shirt? respond yes or no yes\n",
"How many t-shirts do you want? Currently there are 9 available. 2\n",
"Do you want to order something else? no\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt'}\n",
"{'t-shirt': 2}\n"
]
}
],
"source": [
"#5. Ask the user to input the name of three products that a customer wants to order\n",
"#(from those in the products list, meaning three products out of \"t-shirt\", \"mug\", \"hat\", \"book\" or \"keychain\".\n",
"#Add each product name to the customer_orders set.\n",
"\n",
"def askForOrder():\n",
" order_is_complete = False\n",
" \n",
" while order_is_complete == False:\n",
" for product in products:\n",
" wants_product_request = input(f'Do you want to order a {product}? respond yes or no').lower()\n",
" if (wants_product_request == \"yes\"):\n",
" customer_orders.add(product)\n",
" quantity_request = input(f'How many {product}s do you want? Currently there are {inventory[product]} available.')\n",
" total_products_ordered[product] = int(quantity_request)\n",
" # elif wants_product_request == \"no\":\n",
" \n",
" wants_another_product = input(f'Do you want to order something else?').lower()\n",
" if (wants_another_product == \"no\"):\n",
" order_is_complete = True\n",
" break\n",
" \n",
"askForOrder()\n",
"\n",
"\n",
"\n",
"#6. Print the products in the customer_orders set.\n",
"print(customer_orders)\n",
"print(total_products_ordered)"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "0c033fa1-7f92-4e65-b653-87a27f177a5f",
"metadata": {},
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"source": []
},
{
"cell_type": "code",
"execution_count": 17,
"id": "729773d2-9911-4403-8447-d638469d14c5",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"dict_values([2])\n"
]
}
],
"source": [
"#7. Calculate the following order statistics:\n",
"\n",
"#Total Products Ordered: The total number of products in the customer_orders set.\n",
"sum_total_products_ordered = total_products_ordered.values()\n",
"print(sum_total_products_ordered)\n"
]
},
{
"cell_type": "code",
"execution_count": 20,
"id": "c11321a4-6cef-4299-8af6-903ed4668d8f",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"(0.2222222222222222,)\n"
]
}
],
"source": [
"#Percentage of Products Ordered: The percentage of products ordered compared to the total available products.\n",
"\n",
"percentages = []\n",
"\n",
"for product in total_products_ordered:\n",
" percentages.append(total_products_ordered[product]/inventory[product])\n",
"\n",
"#Store these statistics in a tuple called order_status.\n",
"order_status = tuple(percentages)\n",
"print(order_status)\n"
]
},
{
"cell_type": "markdown",
"id": "1db3f242-97d1-4aa4-b4b5-7cfd82638542",
"metadata": {},
"source": [
"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": 26,
"id": "a65869f6-d345-4258-abcf-87cc2892064f",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Order Statistics: \n",
"\n",
"T-shirt\n",
"Total Products Ordered: 2\n",
"Percentage of Products Ordered: : 0.2222222222222222\n",
"\n"
]
},
{
"data": {
"text/plain": [
"\"\\nprint(product_request2.capitalize())\\nprint(f'Total Products Ordered: {total_products_ordered[product_request2]}')\\nprint(f'Percentage of Products Ordered: : {percentage2}\\n')\\n\\nprint(product_request3.capitalize())\\nprint(f'Total Products Ordered: {total_products_ordered[product_request3]}')\\nprint(f'Percentage of Products Ordered: : {percentage3}\\n')\\n\""
]
},
"execution_count": 26,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"#8. Print the order statistics using the following format:\n",
"#Order Statistics:\n",
"#Total Products Ordered: <total_products_ordered>\n",
"#Percentage of Products Ordered: <percentage_ordered>% \n",
"\n",
"print('Order Statistics: \\n')\n",
"for product in total_products_ordered: \n",
" print(product.capitalize())\n",
" print(f'Total Products Ordered: {total_products_ordered[product]}')\n",
" print(f'Percentage of Products Ordered: : {total_products_ordered[product]/(inventory[product]+total_products_ordered[product])}\\n')\n",
"\n"
]
},
{
"cell_type": "code",
"execution_count": 22,
"id": "94e841fe-793d-4add-b7ab-cac2e02e2f4e",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt': 7, 'mug': 9, 'hat': 9, 'book': 9, 'keychain': 9}\n"
]
}
],
"source": [
"#9. Update the inventory by subtracting 1 from the quantity of each product. Modify the inventory dictionary accordingly.\n",
"\n",
"for product in total_products_ordered:\n",
" inventory[product]=inventory[product]-total_products_ordered[product] \n",
"\n",
"print(inventory)"
]
},
{
"cell_type": "code",
"execution_count": 24,
"id": "775cd3f8-82f2-4c7e-bdd4-ea55de6532fc",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"T-shirts: 7\n",
"\n",
"Mugs: 9\n",
"\n",
"Hats: 9\n",
"\n",
"Books: 9\n",
"\n",
"Keychains: 9\n",
"\n"
]
}
],
"source": [
"#10. Print the updated inventory, displaying the quantity of each product on separate lines.\n",
"\n",
"for product in inventory:\n",
" print(f'{product.capitalize()}s: {inventory[product]}\\n')\n"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "8bd31cac-799a-48b6-86a4-47f5d9093c2e",
"metadata": {},
"outputs": [],
"source": []
}
],
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