python Archives

Build an AI Data Analyst with PandasAI and Python: Query CSV/Excel Data Using Natural Language

July 21, 2026

PandasAI wraps an LLM around any pandas DataFrame, letting you query CSV and Excel files in plain English and generate charts without writing a single line of pandas. This guide walks through the full setup — from installation to production-ready configuration — with practical code examples.

Database

PostgreSQL Job Queue with SKIP LOCKED and Advisory Locks: Background Tasks Without Redis or RabbitMQ

July 20, 2026

Learn how to build a reliable background job queue using PostgreSQL's SKIP LOCKED and Advisory Locks — no Redis or RabbitMQ required. Covers worker implementation in Python, retry logic with exponential backoff, per-resource locking, and queue monitoring using plain SQL.

Build a Personal AI Knowledge Base with Obsidian, Ollama and ChromaDB: Offline Semantic Search for Your Notes

July 20, 2026

Keyword search fails when you need it most — 2 AM, 600 notes, and the answer is in there somewhere with a title you don't remember. This guide builds a fully offline personal AI knowledge base using Obsidian, Ollama, and ChromaDB so you can search your notes by meaning, not by exact wording, with no cloud dependency.

Networking

Python Network Traffic Analysis with PyShark: Automated Anomaly Detection and Reporting

July 19, 2026

PyShark lets you capture and analyze network packets programmatically in Python — aggregating connection counts, detecting anomalies, and generating traffic reports automatically. This tutorial walks through building a real traffic analyzer, from live capture to post-incident pcap analysis, that replaces manual Wireshark filtering during production incidents.

Stop Settling for Mediocre RAG: A Practical Guide to Reranking with BGE and Cohere

July 18, 2026

Reranking is the secret to high-accuracy RAG. Learn how to implement a two-stage retrieval pipeline using BGE-Reranker and Cohere's API to eliminate irrelevant AI context.

Build a Local AI OCR System with GOT-OCR2: No Cloud, No Subscriptions, Just Python

July 18, 2026

Tired of expensive cloud OCR bills? Learn how to build a high-performance, local AI OCR system using Python and GOT-OCR2 to handle complex tables, formulas, and messy documents.

Stop Overpaying for GPT-4o: Smart Query Routing with RouteLLM

July 18, 2026

Is GPT-4o draining your budget? Learn how to use RouteLLM to automatically route simple queries to cheaper models, cutting your API costs by up to 50% without sacrificing response quality.

Building AI Applications with Microsoft Semantic Kernel and Python: Plugins, Memory, and Planning for Enterprise AI Agents

July 16, 2026

If LangChain version bumps have burned you before, Microsoft Semantic Kernel is worth a serious look. This guide builds a working Python AI agent from scratch — native plugins, semantic plugins, vector memory, and auto-invocation planning — with real code you can run today.

Programming

Build Modern CLI Tools with Typer and Python: Type Hinting, Validation, and Professional Command Line Interfaces

July 14, 2026

Learn how to build production-ready CLI tools with Typer and Python using type hints for automatic validation, subcommands, and shell autocomplete. Covers real-world patterns including custom validators, testing with CliRunner, and packaging as installable commands — based on production experience replacing fragile argparse scripts.

Automated Red Teaming for LLMs with Giskard: Detecting Vulnerabilities and Bias

July 14, 2026

Learn how to automate Red Teaming for your LLM applications using Giskard. This guide covers detecting prompt injections, data leakage, and bias using automated adversarial testing to ensure your AI is production-ready.