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151 changes: 151 additions & 0 deletions lab-flow-control_elbgr.ipynb
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@@ -0,0 +1,151 @@
{
"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": 9,
"id": "0998adbf",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0, 'book': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0, 'book': 5.0, 'keychain': 5.0}\n",
"This product is not available\n",
"hat: 4.0\n"
]
}
],
"source": [
"products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
"inventory={}\n",
"for product in products:\n",
" quantity=float(input(f\"Please enter the quantity for {product}\"))\n",
" #here we are defining that product is the key on the dictionary and quantity is the value\n",
" inventory[product]=quantity\n",
" print(inventory)\n",
"\n",
"customers_orders=set()\n",
"\n",
"\n",
"while True:\n",
" order_product=input(\"Please choose an item from the product list\")\n",
" if order_product not in products:\n",
" print(\"This product is not available\")\n",
" continue\n",
" if order_product in customers_orders:\n",
" print(\"You already selected this product\")\n",
" continue\n",
" \n",
" customers_orders.add(order_product)\n",
" another = input(\"Do you want to add another product? (yes/no): \")\n",
" another.lower()\n",
" if another!=\"yes\":\n",
" break\n",
"\n",
"#This code is not the best way to do it is better to set a condition to the loop while.\n",
"#You could also do:\n",
"\n",
"\n",
"#another=\"yes\"\n",
"#another.lower()\n",
"#while another==\"yes\":\n",
"# order_product=input(\"Please choose an item from the product list\")\n",
"# if order_product not in products:\n",
"# print(\"This product is not available\")\n",
"# continue\n",
"# if order_product in customers_orders:\n",
"# print(\"You already selected this product\")\n",
"# continue\n",
" \n",
"# customers_orders.add(order_product)\n",
"# another = input(\"Do you want to add another product? (yes/no): \")\n",
"# \n",
" \n",
" \n",
"for product in customers_orders:\n",
" inventory[product]=float(inventory[product])-1\n",
"\n",
"#The following for loop returns all the items on the dictionary and only modify the product that the customer ordered: \n",
"#for product,quantity in inventory.items():\n",
"# print(f\"{product}: {quantity}\")\n",
" \n",
"# I want to print only the product that the customer ordered alongside the modified quantity. How can i do that?\n",
"for product in customers_orders:\n",
" print(f\"{product}: {inventory[product]}\")\n",
"\n",
" \n",
" \n",
" \n",
" \n",
"\n",
" \n",
" \n",
" \n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3",
"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": "3.13.6"
}
},
"nbformat": 4,
"nbformat_minor": 5
}
76 changes: 74 additions & 2 deletions lab-python-flow-control.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -37,11 +37,83 @@
"\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": null,
"id": "0998adbf",
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"{'t-shirt': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0, 'book': 5.0}\n",
"{'t-shirt': 5.0, 'mug': 5.0, 'hat': 5.0, 'book': 5.0, 'keychain': 5.0}\n"
]
},
{
"ename": "TypeError",
"evalue": "'set' object is not callable",
"output_type": "error",
"traceback": [
"\u001b[31m---------------------------------------------------------------------------\u001b[39m",
"\u001b[31mTypeError\u001b[39m Traceback (most recent call last)",
"\u001b[36mCell\u001b[39m\u001b[36m \u001b[39m\u001b[32mIn[6]\u001b[39m\u001b[32m, line 30\u001b[39m\n\u001b[32m 27\u001b[39m \u001b[38;5;28;01mfor\u001b[39;00m product \u001b[38;5;129;01min\u001b[39;00m customers_orders:\n\u001b[32m 28\u001b[39m inventory[product]=\u001b[38;5;28mfloat\u001b[39m(inventory[product])-\u001b[32m1\u001b[39m\n\u001b[32m---> \u001b[39m\u001b[32m30\u001b[39m \u001b[38;5;28;01mfor\u001b[39;00m product, quantity \u001b[38;5;129;01min\u001b[39;00m \u001b[43mcustomers_orders\u001b[49m\u001b[43m(\u001b[49m\u001b[43m)\u001b[49m:\n\u001b[32m 31\u001b[39m \u001b[38;5;28mprint\u001b[39m(\u001b[33mf\u001b[39m\u001b[33m\"\u001b[39m\u001b[38;5;132;01m{\u001b[39;00mproduct\u001b[38;5;132;01m}\u001b[39;00m\u001b[33m: \u001b[39m\u001b[38;5;132;01m{\u001b[39;00mquantity\u001b[38;5;132;01m}\u001b[39;00m\u001b[33m\"\u001b[39m)\n",
"\u001b[31mTypeError\u001b[39m: 'set' object is not callable"
]
}
],
"source": [
"products=[\"t-shirt\",\"mug\",\"hat\",\"book\",\"keychain\"]\n",
"inventory={}\n",
"for product in products:\n",
" quantity=float(input(f\"Please enter the quantity for {product}\"))\n",
" #here we are defining that product is the key on the dictionary and quantity is the value\n",
" inventory[product]=quantity\n",
" print(inventory)\n",
"\n",
"customers_orders=set()\n",
"\n",
"while True:\n",
" order_product=input(\"Please choose an item from the product list\")\n",
" if order_product not in products:\n",
" print(\"This product is not available\")\n",
" continue\n",
" if order_product in customers_orders:\n",
" print(\"You already selected this product\")\n",
" continue\n",
" \n",
" customers_orders.add(order_product)\n",
" another = input(\"Do you want to add another product? (yes/no): \")\n",
" another.lower()\n",
" if another != \"yes\":\n",
" break\n",
" \n",
"\n",
"for product in customers_orders:\n",
" inventory[product]=float(inventory[product])-1\n",
"\n",
"for product, quantity in inventory.items():\n",
" print(f\"{product}: {quantity}\")\n",
" \n",
" \n",
" \n",
" \n",
" \n",
"\n",
" \n",
" \n",
" \n"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Python 3 (ipykernel)",
"display_name": "Python 3",
"language": "python",
"name": "python3"
},
Expand All @@ -55,7 +127,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.13"
"version": "3.13.6"
}
},
"nbformat": 4,
Expand Down