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Solved lab #712

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245 changes: 245 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": "markdown",
"id": "272bc537-af6d-49d3-bb50-47be8e3e1043",
"metadata": {},
"source": [
"1. Look at your code from the lab data structures, and improve repeated code with loops."
]
},
{
"cell_type": "code",
"execution_count": 2,
"id": "f3f55a2f-4044-420c-8e57-8f93c9e54cf3",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Place your order: keychain\n",
"Place your order: book\n",
"Place your order: pen\n"
]
},
{
"name": "stdout",
"output_type": "stream",
"text": [
"Product is not in the list\n"
]
}
],
"source": [
"customer_orders = set()\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"for product in range(3):\n",
" order = str(input(\"Place your order: \"))\n",
"\n",
" if order in products: \n",
" customer_orders.add(order) #.add when we're talking about set's\n",
" else:\n",
" print(\"Product is not in the list\")"
]
},
{
"cell_type": "markdown",
"id": "56492a7c-eda5-4489-a978-1a16024da3bf",
"metadata": {},
"source": [
"2. Instead of asking the user to input the name of three products that a customer wants to order, do the following:"
]
},
{
"cell_type": "code",
"execution_count": 4,
"id": "a6736be1-2576-4c86-abba-a9e38653d405",
"metadata": {},
"outputs": [
{
"name": "stdin",
"output_type": "stream",
"text": [
"Place a order: mug\n",
"Do you want to enter place another order? (yes/no): yes\n",
"Place a order: book\n",
"Do you want to enter place another order? (yes/no): yes\n",
"Place a order: t-shirt\n",
"Do you want to enter place another order? (yes/no): no\n"
]
}
],
"source": [
"customer_orders = set()\n",
"products = [\"t-shirt\", \"mug\", \"hat\", \"book\", \"keychain\"]\n",
"\n",
"asking_order = \"yes\"\n",
"\n",
"while asking_order == \"yes\":\n",
"\n",
" order = (input(\"Place a order: \"))\n",
" customer_orders.add(order)\n",
"\n",
" asking_order = input(\"Do you want to enter place another order? (yes/no): \").lower()"
]
},
{
"cell_type": "code",
"execution_count": 5,
"id": "bcfe2352-fb8b-4875-9431-35c211a6890f",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'book', 't-shirt', 'mug'}\n"
]
}
],
"source": [
"print(customer_orders)"
]
},
{
"cell_type": "markdown",
"id": "cb5fd533-72b7-4702-a239-a8339b789ce8",
"metadata": {},
"source": [
"# notas: \n",
"-> .add utilizado para sets, que não pode tomar type str\n",
"\n",
"-> .append used for lists\n",
"\n",
"-> no need to break because when user answer \"no\", the while loop is automatically stopped"
]
},
{
"cell_type": "markdown",
"id": "be0050c0-c017-4eee-a22f-926632a68093",
"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": 11,
"id": "14e716fa-aa03-4acf-bee6-be5eff8d4176",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The quantity of t-shirt is 122\n",
"The quantity of mug is 357\n",
"The quantity of hat is 903\n",
"The quantity of book is 528\n",
"The quantity of keychain is 507\n"
]
}
],
"source": [
"## previous code:\n",
"inventory = {'t-shirt': 123, 'mug': 358, 'hat': 904, 'book': 529, 'keychain': 508}\n",
"\n",
"for product in products:\n",
" inventory[product] = inventory[product] - 1\n",
" print(f\"The quantity of {product} is {inventory[product]}\")"
]
},
{
"cell_type": "code",
"execution_count": 13,
"id": "cd351c89-1431-4cfe-900e-63cd5cb5cad5",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"The quantity of book is 527\n",
"The quantity of t-shirt is 121\n",
"The quantity of mug is 356\n"
]
}
],
"source": [
"for order in customer_orders:\n",
" inventory[order] = inventory[order] - 1\n",
" print(f\"The quantity of {order} is {inventory[order]}\")"
]
},
{
"cell_type": "markdown",
"id": "2f9bc811-8f19-49b3-95e3-bf20c70915dc",
"metadata": {},
"source": [
"# notas:\n",
"-> a set doesnt have keys or indexes."
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python [conda env:anaconda3]",
"language": "python",
"name": "conda-env-anaconda3-py"
},
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"codemirror_mode": {
"name": "ipython",
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"file_extension": ".py",
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"pygments_lexer": "ipython3",
"version": "3.13.9"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
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