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Articles Written By Rana Md Ali Ahsan

About Rana Ahsan

Rana Ahsan is a seasoned software engineer and technology leader specialized in distributed systems and software architecture. With a Master’s in Software Engineering from Concordia University, his experience spans leading scalable architecture at Coursera and TopHat, contributing to open-source projects. This blog, CodeSamplez.com, showcases his passion for sharing practical insights on programming and distributed systems concepts and help educate others.
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Python Runtime Environment: Understanding Code Execution Flow

Updated November 24, 2025 by Rana Ahsan Leave a Comment ⏰ 14 minutes

python runtime environment

Ever wondered what happens when you run Python code? The Python runtime environment—comprising the interpreter, virtual machine, and system resources—executes your code through bytecode compilation and stack-based execution. Understanding these internals helps you debug faster, optimize smarter, and deploy with confidence. Master Python’s runtime today.

Automation With Python: A Complete Guide

Updated November 6, 2025 by Rana Ahsan Leave a Comment ⏰ 21 minutes

automation with python

Tired of repetitive tasks eating up your time? Python can help you automate the boring stuff — from organizing files to scraping websites and sending reports. In this guide, you’ll learn how to write your first automation script and unlock a world of productivity.

Python File Handling: A Beginner’s Complete Guide

Updated October 20, 2025 by Rana Ahsan Leave a Comment ⏰ 16 minutes

python file handling

Learn python file handling from scratch! This comprehensive guide walks you through reading, writing, and managing files in Python with real-world examples, troubleshooting tips, and best practices that’ll have you handling files like a pro.

Service Worker Best Practices: Security & Debugging Guide

Updated October 9, 2025 by Rana Ahsan Leave a Comment ⏰ 10 minutes

service worker best practices

You’ve conquered the service worker lifecycle, mastered caching strategies, and explored advanced features. Now it’s time to lock down your implementation with battle-tested service worker best practices that prevent security nightmares and production headaches.

Advanced Service Worker Features: Push Beyond the Basics

Updated October 8, 2025 by Rana Ahsan Leave a Comment ⏰ 8 minutes

advanced service worker features

Unlock the full potential of service workers with advanced features like push notifications, background sync, and performance optimization techniques that transform your web app into a native-like experience.

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