Python

18 articles tagged with python.

freeCodeCamp

How to Build Your First Multi-Agent AI System in Python and LangGraph

In this tutorial, I'll show you how to build a multi-agent AI system in Python with no orchestration framework. We'll also implement this in LangGraph with nodes, edges, and shared state. The point of

Darsh Shah 11 minabout 19 hours ago
freeCodeCamp

How to Analyze Insider Transactions with Python: A CEO Buying Case Study

When a CEO buys shares after their company’s stock has fallen hard, it's tempting to read the purchase as a vote of confidence. The person running the business knows more than the average investor, so

Nikhil Adithyan 28 min1 day ago
freeCodeCamp

How to Write Your First Quantum Circuit in Python: A Beginner's Step-by-Step Guide

Imagine opening your laptop and writing code that follows the laws of Quantum Physics. Sounds like science fiction, right? That's exactly what I thought the first time I heard about quantum computing.

Casmir Onyekani 16 min16 days ago
freeCodeCamp

How a Bloom Filter Works: Build One From Scratch in Python

A Bloom filter gives you something that feels like magic: it can tell you whether an item is in a set of billions, using only a few kilobytes of memory. And it answers in the same tiny amount of time

Prasanth Madhurapantula 11 min16 days ago
freeCodeCamp

How to Build a Personal Web Research AI Agent with Ollama and Qwen

In this tutorial, I’ll show you how to build an AI web research agent using Ollama, Qwen, and Python. The agent searches the web for a topic, fetches relevant pages, and uses a local LLM to generate a

Darsh Shah 9 min19 days ago
freeCodeCamp

How to Find Stock-Specific Moves in the S&P 500 with Python

On June 12, 2026, SPY closed up 0.54%. EchoStar (SATS) dropped 11%. Lennar (LEN) dropped 4.9%. Most of the other 500 stocks in the index barely moved beyond what SPY’s own gain would predict. That gap

Nikhil Adithyan 18 min21 days ago
freeCodeCamp

How to Analyze Analyst Estimate Ranges with Python

Most financial models use analyst consensus as a single forward-looking input: revenue estimate, EPS estimate, EBITDA estimate, or some version of a forward margin assumption. That works, but it flatt

Nikhil Adithyan 14 min27 days ago
freeCodeCamp

Geopolitical Risk Isn't One Thing. I Built a Python Framework to Prove It

On April 3, 2025, the US announced sweeping tariffs on Chinese imports. SPY dropped 4.8% that day. The next day, it dropped another 6%. Financial news ran the usual headline: markets rattled by geopol

Nikhil Adithyan 22 minabout 1 month ago
DEV Community

Why I still teach Singleton even though modules make it redundant

Ask any developer what design pattern they know best and Singleton comes up first. Ask the same group...

Dmitry Sheiko3 minabout 1 month ago1
DEV Community

Heterogeneous Pythonic language in your pocket

Hello everyone 👋, I am Amr Hesham, and I am very passionate about Compilers, Languages, and building...

Amr Hesham9 minabout 1 month ago
DEV Community

Google Antigravity SDK: The developer guide

The Google Antigravity SDK is a Python framework for building and running autonomous agents. It...

Karl Weinmeister9 minabout 1 month ago5
freeCodeCamp

How to Automate PDF Data Extraction Using Python

PDFs are still one of the most widely used document formats in business. Financial reports, invoices, contracts, compliance filings, and operational documents are often shared as PDFs because they pre

Manish Shivanandhan 7 minabout 1 month ago
freeCodeCamp

How to Use Bash & Python for Real DevOps Automation – Full Handbook with 5 Production Use Cases

Automation scripts often validate process completion instead of system health. A Kubernetes pod can be running while the application inside it can't authenticate to the database. A Terraform deploymen

Osomudeya Zudonu 50 minabout 2 months ago
freeCodeCamp

How to Clean Time Series Data in Python

Real-world time series data is rarely clean. Sensors drop out, systems clock-drift, pipelines duplicate records, and manual data entry introduces mistakes. By the time a dataset reaches your notebook,

Bala Priya C 15 minabout 2 months ago
freeCodeCamp

How to Build a Calculator with Tkinter in Python

In this tutorial, you'll learn how to create a simple arithmetic calculator in Python with Tkinter. The project will be one of your first steps towards building an actual GUI in Python. This is a hand

Sara Jadhav 18 min2 months ago
freeCodeCamp

How to Build an Autonomous OSINT Agent in Python Using Claude's Tool Use API

When I started studying OSINT, I always felt I was just putting random values into software without deeply understanding what I was doing. After months in the field, I realized I wasn't really investi

Tommaso Bertocchi 11 min2 months ago
freeCodeCamp

How to Build a Live Options Database in Python – A Complete Guide

Live options analytics change constantly. Implied volatility shifts, Greeks drift, and the shape of the surface can look different even a few minutes later. But a lot of teams still treat these number

Nikhil Adithyan 20 min2 months ago
freeCodeCamp

How to Build a Market Research Copilot with MCP and Python [Full Handbook]

Most financial AI tools are good at one thing: summarizing a stock. You ask about Apple, NVIDIA, or Tesla, and they give you a clean overview of price action, a few ratios, and maybe some company cont

Nikhil Adithyan 36 min2 months ago