Programming Tutorials

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If you've ever built a RAG (Retrieval-Augmented Generation) system, you know the pain: every new project means rewriting the same boilerplate — vector

Web Scraping for Beginners: Sell Data as a Service As a developer, you're likely aware of the vast amounts of data available on the web. Ho

A daily deep dive into llm topics, coding problems, and platform features from PixelBank. Topic Deep Dive: Human Evaluation From the Ev

Why I Stopped Using SQS and Built a Kafka System From Scratch TL;DR: I'd been using SQS and Sidekiq at work for a year. They worked fine —

A subtle and dangerous Python bug many developers encounter is this: Your function works once, then starts behaving strangely on later calls. Data k

Your Pipeline Is 11.9h Behind: Catching Banking Sentiment Leads with Pulsebit We recently observed a striking anomaly: a 24h momentum spike

Last month, my CA messaged me at 11pm: "Bhai, send all April invoices in a single zip, named properly." I had 47 PDF invoices in my Downloads folder,

Your pipeline just missed a significant anomaly: a 24h momentum spike of +0.862 in health sentiment. This finding reveals a rising interest in health

Webhooks made sense when the consumer was a cloud server with a static IP and a permanent HTTPS endpoint. For AI agents, almost none of those assumpti

The Morning Voice Note I Did Not Write At 7 AM every day, I get a briefing on my phone. Not from a person. From a system I built — one tha

Your Airflow DAG ran last night. All tasks: green. All durations: normal. Export job completed at 02:14. Zero rows exported. Nobody knows. This is t

Check your grasp of the Factory Method pattern in Python: when to use it, the roles involved, and how to implement a flexible object factory.

How do you add agent skills to your data science workflow? How can a coding agent assist with data wrangling and research? This week on the show, Trev

One night. One command. Full threat intelligence picture. The Problem Every time I needed to check if an IP or domain was malicious,

1. PYTHON SELENIUM ARCHITECTURE Selenium is one of the most widely used tools for automating web applications. When we use Selenium

Picture this. A test starts failing in CI. You pull the branch locally, run the suite, and it passes. You dig in for twenty minutes before realising t

Shopify data engineering interview questions are SQL end-to-end with a sharp merchant-sessions analytics edge: five SQL primitives (DATE_TRUNC('month'

PayPal data engineering interview questions are Python end-to-end with a payments-analytics edge: five Python primitives (list comprehensions for filt

Your agent has 40 tools. Each tool definition — name, description, JSON Schema parameters — costs roughly 200 tokens. That's 8,000 tokens before the a