Programming Tutorials

装饰器模式深度指南：让对象能力动态扩展的艺术 引言 在软件开发的日常中，我们经常遇到这样的需求：需要为某个对象添加新的功能，但又不希望修改原有的类结构。传统的做法是通过继承子类来扩展功能，但这种方式会导致类爆炸问题——每增加一种功能组合，就需要创建一个新的

In the rapidly evolving landscape of quantitative trading and fintech in 2026, market data APIs have become essential infrastructure for both individu

在量化交易与金融科技快速发展的 2026 年，行情数据 API 已经成为个人开发者和机构投资者的核心基础设施。选择一个稳定、低延迟、价格合理的股票 API，有时甚至比交易策略本身更能决定成败。然而，面对港股、美股、A 股三个截然不同的市场，API 的选型绝非“一个方案打天下”。本文将从跨境量化视角，

Unlocking the Secrets of the Universe: Insights from the DGCE SIG Seminar The search for answers to humanity's most profound questions has

Transforming Your Obsidian Vault into a Project Manager As a user of Obsidian, you're likely familiar with its powerful note-taking capabil

Building a Reliable Team Without Increasing Headcount: A Game-Changer for Small Businesses As a small business owner, you're no stranger to

Brazil has one of the most complex crime landscapes in Latin America — but getting clean, queryable data has historically been a nightmare of PDFs, br

Day 1/75: Python DSA environment setup 75 Day DSA in Python Challenge Today I focused on building a Python setup that makes daily DSA work

Senior Python Challenges: What I Learned After Moving From Writing Code to Running Systems in Production Working with Python as a senior developer fe

LLMs are stateless by default. Every conversation starts fresh — no memory of past interactions, user preferences, or project context. For productio

Cursor Rules for FastAPI: The Complete Guide to AI-Assisted Python API Development FastAPI is the framework where "the response came back w

A few months ago I was building a product listing page for a small Shopify store. The client had decent product photos — white-background PNGs, cleanl

Building distributed systems in Python? Here is how python-cqrs tackles consistency with orchestrated sagas, the mediator pattern, and a transactional

From Concept to Clinical Application Building intelligent diagnostic systems requires balancing technical sophistication with medical rigor

A 2025 peer-reviewed study (Vectara, NAACL 2025) found something most RAG teams get backwards: Chunking strategy has equal or greater impact on retri

Ml Intern – Python Project: Complete Top Tools Comparison Guide (2026) Best Ml Intern – Python Project tools compared in 2026. Free and pa

Hey friends! What a season it's been - This Adventure of Blink is flying right by. We have a working game, but... we'd like to have a little somethi

Most tutorials about building AI agents focus on the happy path. The agent calls a tool, gets a result, continues. Clean. Simple. Nothing like what yo

How I Automate My Freelance Workflow with Python As a freelance developer, I've learned that automation is key to increasing productivity a

Hello, DEV community! 👋 I’ve been a long-time reader, but I finally decided to stop lurking and start contributing. I’m a Backend Developer, and I sp