From a9ad83d9f67da71db8409f7b641e00a7ebda2a08 Mon Sep 17 00:00:00 2001 From: Saurabh Gupta Date: Sun, 7 Sep 2025 16:11:34 -0400 Subject: [PATCH] week1 day1 Flight Prices Tracker by Saurabh Gupta --- .../Week1_Day1_Flight_Prices_Tracker.ipynb | 223 ++++++++++++++++++ 1 file changed, 223 insertions(+) create mode 100644 week1/community-contributions/Week1_Day1_Flight_Prices_Tracker.ipynb diff --git a/week1/community-contributions/Week1_Day1_Flight_Prices_Tracker.ipynb b/week1/community-contributions/Week1_Day1_Flight_Prices_Tracker.ipynb new file mode 100644 index 0000000..6f07562 --- /dev/null +++ b/week1/community-contributions/Week1_Day1_Flight_Prices_Tracker.ipynb @@ -0,0 +1,223 @@ +{ + "cells": [ + { + "cell_type": "code", + "execution_count": 1, + "id": "fdc2f470", + "metadata": {}, + "outputs": [], + "source": [ + "# imports\n", + "\n", + "import os\n", + "import requests\n", + "from dotenv import load_dotenv\n", + "from bs4 import BeautifulSoup\n", + "from IPython.display import Markdown, display\n", + "from openai import OpenAI\n", + "\n", + "# If you get an error running this cell, then please head over to the troubleshooting notebook!" + ] + }, + { + "cell_type": "code", + "execution_count": 2, + "id": "5f0fbd79", + "metadata": {}, + "outputs": [ + { + "name": "stdout", + "output_type": "stream", + "text": [ + "API key found and looks good so far!\n" + ] + } + ], + "source": [ + "# Load environment variables in a file called .env\n", + "\n", + "load_dotenv(override=True)\n", + "api_key = os.getenv('OPENAI_API_KEY')\n", + "\n", + "# Check the key\n", + "\n", + "if not api_key:\n", + " print(\"No API key was found - please head over to the troubleshooting notebook in this folder to identify & fix!\")\n", + "elif not api_key.startswith(\"sk-proj-\"):\n", + " print(\"An API key was found, but it doesn't start sk-proj-; please check you're using the right key - see troubleshooting notebook\")\n", + "elif api_key.strip() != api_key:\n", + " print(\"An API key was found, but it looks like it might have space or tab characters at the start or end - please remove them - see troubleshooting notebook\")\n", + "else:\n", + " print(\"API key found and looks good so far!\")\n" + ] + }, + { + "cell_type": "code", + "execution_count": 3, + "id": "b771480a", + "metadata": {}, + "outputs": [], + "source": [ + "openai = OpenAI()" + ] + }, + { + "cell_type": "code", + "execution_count": 4, + "id": "0e97974c", + "metadata": {}, + "outputs": [], + "source": [ + "# A class to represent a Webpage\n", + "# If you're not familiar with Classes, check out the \"Intermediate Python\" notebook\n", + "\n", + "# Some websites need you to use proper headers when fetching them:\n", + "headers = {\n", + " \"User-Agent\": \"Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36\"\n", + "}\n", + "\n", + "class Website:\n", + "\n", + " def __init__(self, url):\n", + " \"\"\"\n", + " Create this Website object from the given url using the BeautifulSoup library\n", + " \"\"\"\n", + " self.url = url\n", + " response = requests.get(url, headers=headers)\n", + " soup = BeautifulSoup(response.content, 'html.parser')\n", + " self.title = soup.title.string if soup.title else \"No title found\"\n", + " for irrelevant in soup.body([\"script\", \"style\", \"img\", \"input\"]):\n", + " irrelevant.decompose()\n", + " self.text = soup.body.get_text(separator=\"\\n\", strip=True)" + ] + }, + { + "cell_type": "code", + "execution_count": 5, + "id": "2ec62fb3", + "metadata": {}, + "outputs": [], + "source": [ + "# Define our system prompt - you can experiment with this later, changing the last sentence to 'Respond in markdown in Spanish.\"\n", + "\n", + "system_prompt = \"You are an assistant that analyzes the contents of a website \\\n", + "and provides a list of the flights available according to what user asks for, ignoring text that might be navigation related. \\\n", + "Respond in markdown.\"" + ] + }, + { + "cell_type": "code", + "execution_count": 6, + "id": "7a93a605", + "metadata": {}, + "outputs": [], + "source": [ + "# A function that writes a User Prompt that asks for summaries of websites:\n", + "\n", + "def user_prompt_for(website):\n", + " user_prompt = f\"You are looking at a website titled {website.title}\"\n", + " user_prompt += \"\\nThe contents of this website is as follows; \\\n", + "please provide a list of all the flights available in a table format in markdown. The columns of the table should be - Flight carrier, Flight Dat and times, Fare, No. of stops. \\\n", + "Provide exact flight carriers. If it includes ads or offers, then summarize these too.\\n\\n\"\n", + " user_prompt += website.text\n", + " return user_prompt" + ] + }, + { + "cell_type": "code", + "execution_count": 7, + "id": "597646e5", + "metadata": {}, + "outputs": [], + "source": [ + "def fetch_flights(from_tx,to_tx, date_from,date_to=''):\n", + " website = Website(f\"https://www.ca.kayak.com/flights/{from_tx}-{to_tx}/{date_from}/{date_to}\")\n", + " user_prompt = user_prompt_for(website)\n", + " messages = [{\"role\":\"system\",\"content\":system_prompt},{\"role\":\"user\",\"content\":user_prompt}]\n", + " response = openai.chat.completions.create(model=\"gpt-4o-mini\", messages=messages)\n", + " display(Markdown(response.choices[0].message.content))" + ] + }, + { + "cell_type": "code", + "execution_count": 8, + "id": "47ae61f3", + "metadata": {}, + "outputs": [ + { + "data": { + "text/markdown": [ + "Here is the list of available flights from YYZ to DEL on 9/11:\n", + "\n", + "| Flight Carrier | Flight Date and Times | Fare | No. of Stops |\n", + "|----------------|-----------------------|--------|--------------|\n", + "| Air Canada | 9/11, 10:00 AM | C$ 833 | 1 |\n", + "| Lufthansa | 9/11, 5:00 PM | C$ 847 | 2 |\n", + "| Qatar Airways | 9/11, 1:30 PM | C$ 1,559| 1 |\n", + "\n", + "### Summary of Offers\n", + "- The cheapest fare is C$ 833 with a travel time of 23 hours and 35 minutes.\n", + "- The best fare option is C$ 847 with a travel time of 22 hours and 20 minutes.\n", + "- The quickest option is priced at C$ 1,559 with a travel duration of 13 hours and 55 minutes. \n", + "\n", + "*Note: Prices are per person and do not include baggage fees.*" + ], + "text/plain": [ + "" + ] + }, + "metadata": {}, + "output_type": "display_data" + } + ], + "source": [ + "fetch_flights('yyz','del','2025-11-09')" + ] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "3a48ceb6", + "metadata": {}, + "outputs": [], + "source": [] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "15bb1a04", + "metadata": {}, + "outputs": [], + "source": [] + }, + { + "cell_type": "code", + "execution_count": null, + "id": "902975bf", + "metadata": {}, + "outputs": [], + "source": [] + } + ], + "metadata": { + "kernelspec": { + "display_name": "venv", + "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": "3.12.11" + } + }, + "nbformat": 4, + "nbformat_minor": 5 +}