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133 changes: 133 additions & 0 deletions .ipynb_checkpoints/lab-python-flow-control-checkpoint.ipynb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,133 @@
{
"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": 2,
"id": "5406bd24-7514-40a0-80e9-005b9ee6e8b2",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"please enter the quantity of each product available.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"t-shirt: 5\n",
"mug: 7\n",
"hat: 9\n",
"book: 1\n",
"keychain: 0\n",
"which product do you want to buy: book\n",
"do you want to buy another product? (y/n): y\n",
"which product do you want to buy: book\n",
"do you want to buy another product? (y/n): n\n"
]
},
{
"data": {
"text/plain": [
"{'t-shirt': 5, 'mug': 7, 'hat': 9, 'book': 0, 'keychain': 0}"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
"inventory={}\n",
"print(\"please enter the quantity of each product available.\")\n",
"for i in products:\n",
" quantity=int(input(i+\":\"))\n",
" while quantity<0:\n",
" quantity=int(input(\"please enter a new number that is not under 0:\"))\n",
" inventory[i]=quantity\n",
"inventory\n",
"\n",
"customer_orders=set()\n",
"x=\"y\"\n",
"while x==\"y\":\n",
" customer_orders.add(input(\"which product do you want to buy:\"))\n",
" x=input(\"do you want to buy another product? (y/n):\")\n",
"\n",
"for i in customer_orders:\n",
" if inventory[i]!= 0:\n",
" inventory[i]-=1\n",
"inventory"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "65c4b5f4-efce-4f37-8bca-3b6fff33afb8",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"language": "python",
"name": "python3"
},
"language_info": {
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"file_extension": ".py",
"mimetype": "text/x-python",
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.10.14"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
72 changes: 71 additions & 1 deletion lab-python-flow-control.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,76 @@
"\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": 2,
"id": "5406bd24-7514-40a0-80e9-005b9ee6e8b2",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"please enter the quantity of each product available.\n"
]
},
{
"name": "stdin",
"output_type": "stream",
"text": [
"t-shirt: 5\n",
"mug: 7\n",
"hat: 9\n",
"book: 1\n",
"keychain: 0\n",
"which product do you want to buy: book\n",
"do you want to buy another product? (y/n): y\n",
"which product do you want to buy: book\n",
"do you want to buy another product? (y/n): n\n"
]
},
{
"data": {
"text/plain": [
"{'t-shirt': 5, 'mug': 7, 'hat': 9, 'book': 0, 'keychain': 0}"
]
},
"execution_count": 2,
"metadata": {},
"output_type": "execute_result"
}
],
"source": [
"products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
"inventory={}\n",
"print(\"please enter the quantity of each product available.\")\n",
"for i in products:\n",
" quantity=int(input(i+\":\"))\n",
" while quantity<0:\n",
" quantity=int(input(\"please enter a new number that is not under 0:\"))\n",
" inventory[i]=quantity\n",
"inventory\n",
"\n",
"customer_orders=set()\n",
"x=\"y\"\n",
"while x==\"y\":\n",
" customer_orders.add(input(\"which product do you want to buy:\"))\n",
" x=input(\"do you want to buy another product? (y/n):\")\n",
"\n",
"for i in customer_orders:\n",
" if inventory[i]!= 0:\n",
" inventory[i]-=1\n",
"inventory"
]
},
{
"cell_type": "code",
"execution_count": null,
"id": "65c4b5f4-efce-4f37-8bca-3b6fff33afb8",
"metadata": {},
"outputs": [],
"source": []
}
],
"metadata": {
Expand All @@ -55,7 +125,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.10.14"
}
},
"nbformat": 4,
Expand Down