Python – Page 24 – ITFROMZERO

Task Scheduling with Python APScheduler: Comparing cron, schedule, and APScheduler

By IT From Zero March 6, 2026

A comparison of three task scheduling approaches in Python: cron, the schedule library, and APScheduler. Analyzes the trade-offs of each approach and walks through practical APScheduler implementation using interval, cron, and date triggers with real-world error handling.

Python

Web Scraping with Python BeautifulSoup: Choose the Right Tool Before You Code

By IT From Zero March 3, 2026

Compare requests+BeautifulSoup, Selenium, and Scrapy to choose the right web scraping tool for each problem. A step-by-step implementation guide with real Python code: HTML parsing, CSS selectors, edge case handling, and lessons learned from a real project.

Development

Installing and Using Visual Studio Code on Linux: Real-World Tips & Tricks

By IT From Zero March 3, 2026

A detailed guide to installing Visual Studio Code on Ubuntu, Fedora, and Arch Linux — including settings.json configuration, essential extensions, and practical tips to boost your productivity from the very first day.

Artificial Intelligence tutorial - IT technology blog

A Practical Guide to Using OpenAI API with Python: From Setup to Production

By IT From Zero March 3, 2026

A practical guide to using the OpenAI API with Python in a DevOps environment: proper setup, building a wrapper function with retry logic, streaming responses, parsing structured JSON output, and tracking token costs. Focused on common pitfalls and how to avoid them from the start.

How to Install ComfyUI for Local AI Image Generation

By IT From Zero March 2, 2026

A practical guide to installing ComfyUI locally for AI image generation with Stable Diffusion — covering GPU setup, model downloads, configuration, and real-world monitoring. Drawn from 8 months of hands-on use.

Fine-tuning AI Models with Your Own Data: A Practical Guide from A to Z

By IT From Zero March 2, 2026

A hands-on guide to fine-tuning AI models with your own data using LoRA and QLoRA. From dataset preparation and LoRA adapter configuration to training with SFTTrainer, merging, and deploying a custom model for real-world use.

Machine Learning for Beginners: From Theory to Practice with scikit-learn

By IT From Zero February 28, 2026

A practical machine learning guide for beginners: set up a Python environment, train a classification model with scikit-learn, serialize it, and monitor data drift in production. Based on real-world experience integrating ML into a DevOps pipeline — including the painful lesson of neglecting a model for 3 months and watching it drift.

Building a RAG Application with LangChain and Python: From Failure to Production

By IT From Zero February 28, 2026

Six months of hands-on experience building a RAG (Retrieval-Augmented Generation) system with LangChain and Python for an internal document lookup chatbot. From hallucination issues and context window limitations to a solution that actually works in production, with complete code examples.

Integrating ChatGPT API into Web Apps: Real-World Error Handling from Production

By IT From Zero February 28, 2026

Integrating the ChatGPT API into a real web app is more than just a few API calls — you'll hit rate limits, token overflow, and unstable latency the moment you deploy. This post cuts straight to the most common production failures and how to handle them properly from the start.

Database

Getting Started with Redis: Installation and Basic Usage — From 2 AM Production Crisis to Proficiency

By IT From Zero February 28, 2026

When a Django server starts timing out under heavy traffic, the culprit is often a database overwhelmed by repeated identical queries. This guide covers installing Redis on Linux, the essential commands you need to know, and how to integrate a cache layer into Python to immediately reduce database load.