#Python

Build a Streaming Chat UI with React, Vercel AI SDK, and FastAPI

Wire up token-by-token streaming between a FastAPI backend and a React frontend using the Vercel AI SDK data-stream protocol.

Tutorial · 1mo ago0

Add Semantic Caching to Your LLM App with Redis

Build a Python layer that stores LLM responses by embedding and retrieves them by semantic similarity, so paraphrased questions skip the API entirely.

Tutorial · 2mos ago0

Build a Multi-Agent Research Pipeline with CrewAI and Ollama

Assemble a three-agent CrewAI crew backed by a locally running Llama 3.1 model to autonomously produce structured, cited research reports — no OpenAI key required.

Tutorial · 2mos ago0

Build and Deploy a Serverless REST API with AWS Lambda, API Gateway, and SAM CLI

Scaffold, run locally, and ship a typed Python REST API to AWS in under 30 minutes using SAM templates and a single deploy command.

Tutorial · 2mos ago0

Replace nvm, pyenv, and rbenv with mise: One Tool for All Your Runtime Versions

Install mise once, pin Node, Python, and Ruby in a single config file, and let every teammate get the same toolchain on clone.

Tutorial · 2mos ago0

The Python Bugs Behind Microsoft's Disputed Quantum Breakthrough

A peer-reviewed critique reveals how simple array-reversal and filtering mistakes can undermine major scientific claims.

Article · 2mos ago1

Ditching the Magic: Why Haystack Wins in Production RAG

Haystack's explicit, graph-based architecture replaces implicit framework magic with predictable, production-ready pipelines for LLMs and agents.

Article · 2mos ago0

Extract Structured Data from Documents with Claude Tool Use and Pydantic

Build a Python pipeline that sends invoice PDFs or images to Claude, forces a structured response via tool use, and returns a fully validated Pydantic model.

Tutorial · 2mos ago0

Ditch pip and pyenv: Manage Your Entire Python Toolchain with uv

One Rust-powered tool replaces pip, pip-tools, and pyenv. Learn to install Python versions, create virtual environments, and lock dependencies in minutes.

Tutorial · 2mos ago0

The Elegant Razor of Norvig’s Lispy

Why a 130-line Python script from 2010 remains the ultimate masterclass in language design and domain-specific engines.

Article · 2mos ago0

Profile and Fix a Slow Python Service Using py-spy Flame Graphs

Attach py-spy to a live process with zero code changes, read the flame graph to pinpoint an O(n²) bottleneck, and verify a 1000x+ speedup — all without restarting your service.

Tutorial · 2mos ago0

Analyze Images and PDFs with Google Gemini's Multimodal API in Python

Send a photo or a PDF to Gemini 1.5 Flash and get back clean, structured JSON — in under 50 lines of Python.

Tutorial · 2mos ago0

Defend Your LLM App Against Prompt Injection and Jailbreaks

Build a practical two-layer defense—regex heuristics plus an ML classifier—and an output guardrail that blocks attacks before they reach your model or your users.

Tutorial · 2mos ago0

Sliding-Window Rate Limiting for FastAPI with Redis

Protect your Python API from hammering and credential-stuffing with a per-IP and per-token rate limiter backed by Redis — before you ship to production.

Tutorial · 2mos ago0

Bootstrap an Arch Linux Dev Machine: pacman, yay, and a Full Toolchain

Go from a fresh Arch install to a fully equipped dev environment — AUR helper, a slick shell prompt, and Node.js, Python, and Rust — in under an hour.

Tutorial · 2mos ago0