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Taking My First Steps in Core Python Mastery Today, I kicked off my core Python journey by building a continuous, terminal-based calculator completely
Python Crypto Dashboard: Track BTC and ETH Prices in Real-Time Current BTC: $62,613 (+1.0%) 📈 Current ETH: $1,763 (+1.5%) Build a real-tim
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Copy this entire block and paste it into Dev.to: Every sales tool I've used has the same problem: it forgets everything the moment you close the t
A Python service I work on did something that shouldn't be possible. It wrote a directory full of files, turned around to upload them, and found nothi
It was 3 a.m. when a message from a customer jolted me awake: “Your support bot is amnesic again — after rolling back a conversation, it started mixin
Introduction Through Chapter 6 (Fine-tuning), we focused on improving a single AI system. This chapter introduces multi-agent design, where
TIL: Python's Walrus Operator := Can Simplify While Loops If you're like me, you've written your fair share of while loops that read and pr
Python Performance Tips: Make Your Code 10x Faster Speed matters. Here are the most impactful Python optimizations. 1. Use Built-
Introduction In Chapter 5 (MLOps), we built a CI/CD pipeline. This chapter explores a different approach: fine-tuning — training the model
Introduction Through Chapter 4 (Security), we implemented Evals, Observability, and Security as individual components. In this chapter, we
Check your understanding of Python interfaces, from informal interfaces and duck typing to formal interfaces built with the abc module.
How do you avoid the risk of running a Python application locally that could be malicious, break your code, or leak private data? How can you create a
In this tutorial, I'll show you how to build a private local RAG-powered Q&A AI agent for your personal documents using LangChain v1, Ollama, Qwen, an
Your AI product experiment reaches statistical significance on day 14 of a planned 30-day run, measuring a causal inference question: did the LLM-base
Discord Bot in 50 Lines of Python I'll show you how to build a working Discord bot that responds to commands in less than 5 minutes. What
Most of the code we write can be checked against something. A tax calculator has the tax code. A JSON parser has a spec. A physics sim has reality. Yo
The most valuable code in my agent stack is the code that does nothing. I run a pipeline where agents research, draft, and queue content for publishi
Build a Real-Time Crypto Trading Dashboard with Python, WebSockets, and React Real-time data is the difference between catching a move and
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