Sharing notes from my ongoing learning journey — what I build, break and understand along the way.
Python Basics – Part 3: Conditional Statements (if, elif, else) In this part of my 5-week Python training notes, we’ll look at conditional statements – how to make decisions in your code using if, elif, and else.These are part of…
Python Basics – Part 2: Operators in Python As part of my 5-week Python training course, these notes cover the most important Python operators — from arithmetic and string operations to logical and comparison operators.We’ll also look at assignment shortcuts,…
Python Basics – Part 1: Comments, Variables, and Data Types Over the next few weeks, I’ll be sharing my notes from a 5-week Python training course.Throughout the course, we covered fundamental programming concepts and practical examples step by step.From time…
Understanding IPsec Step by Step: Encryption, Tunnels, IKE, ESP, and More Sending data over the internet often means traveling through an environment full of risks. Our information passes through routers, switches, service providers, and various networks before it reaches its…
Understanding DPI Firewall: How Deep Packet Inspection Works and Why It Matters What Is DPI? A High-Level Overview DPI (Deep Packet Inspection) is a technology that analyzes network packets beyond basic headers, diving into the actual content (payload) of the…
Understanding WhatsApp’s Hybrid Encryption: Symmetric + Asymmetric Made Clear You’ve seen the famous WhatsApp line: “Your messages are end-to-end encrypted.” Sounds comforting, but for most people it basically means: “Okay… I think my chats are safe?” There’s actually a very…
Understanding Transformers: The Architecture Behind Modern AI Models A few years ago, if you wanted a machine to understand text, you had to feed it information word by word, like reading a sentence to a child very slowly and hoping…
Turn Your Python Script into a Windows EXE — Complete Beginner-Friendly Guide You’ve built your Python project, tested it, everything works perfectly. Now it’s time to share it… but the other person doesn’t have Python installed, no libraries, different system…
What Are White Box and Black Box Tests and When Should You Use Them? When writing code, just because something “runs” doesn’t mean it’s correct.To be sure our code actually works as expected, we need to test it.Two of the…
Understanding Pseudocode with an Example: Step-by-Step Explanation and Python Code Pseudocode is a simple, structured way to describe how an algorithm works without using any specific programming language.It’s not real code — it’s a human-readable description that shows the logical…