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Tech Blog & Engineering Masterclasses

In-depth developer guides on V8 internals, Python architecture, SQL, Next.js, and placement drives.

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🌐 All Articles (39) 🚀 Backend & SaaS (0) 🐍 Python & Backend (5) 🚀 Django & Web Architecture (3) 🗄️ Database & SQL (2) 🧩 Data Structures & Algorithms (5) 🎯 Interview Prep & Database (12) 💼 Career & Git Roadmaps (4) 🎨 UI & Design Systems (1) ⚡ JavaScript & Engines (2) ⚛️ Frontend & Next.js (2) 🛠️ Developer Tooling & Compilers (3)
Kashinath Chavan Kashinath Chavan • Python & Backend • Aug 23

Advanced Python Handbook by Kashinath: Internals, Concurrency & Meta-Programming

A masterclass in advanced Python architecture: deep dive into generator pipelines, custom context managers, metaclasses, descriptors, asyncio event loops, and memory profiling.

⏱️ 3 min read 👁️ 193 views 👏 42 claps ⭐ Featured
Advanced Python Handbook by Kashinath: Internals, Concurrency & Meta-Programming
Kashinath Chavan Kashinath Chavan • Python & Backend • Aug 21

Mastering Pytest: Automated Testing, Fixtures & Parametrization for Python

Learn professional unit testing with Pytest: test fixtures, dependency injection, parametrization, mocking external APIs, and test coverage reporting.

⏱️ 1 min read 👁️ 265 views 👏 58 claps
Mastering Pytest: Automated Testing, Fixtures & Parametrization for Python
Kashinath Chavan Kashinath Chavan • Python & Backend • Aug 21

Python Asyncio Masterclass: Building a High-Concurrency Web Scraper with aiohttp

Python's asyncio event loop can handle 10,000+ concurrent connections on a single thread. Learn coroutines, tasks, semaphores, and build a real production async web scraper with aiohttp that is 40x faster than the requests equivalent.

⏱️ 5 min read 👁️ 2985 views 👏 398 claps
Python Asyncio Masterclass: Building a High-Concurrency Web Scraper with aiohttp
Kashinath Chavan Kashinath Chavan • Python & Backend • Aug 15

Mastering Python Object-Oriented Programming (OOP) with Practical Examples

Deep dive into OOP in Python: understand classes, inheritance, encapsulation, polymorphism, abstract base classes, and dunder methods with clean production code.

⏱️ 1 min read 👁️ 481 views 👏 106 claps
Mastering Python Object-Oriented Programming (OOP) with Practical Examples
Kashinath Chavan Kashinath Chavan • Python & Backend • Aug 14

The JavaScript Event Loop Explained: Microtasks, Macrotasks and Execution Contexts

A visual step-by-step breakdown of how single-threaded JavaScript handles asynchronous operations, Promise microtask queues, setTimeout timers, and UI render ticks.

⏱️ 1 min read 👁️ 304 views 👏 76 claps
The JavaScript Event Loop Explained: Microtasks, Macrotasks and Execution Contexts
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