In Part 1, we explored what end-to-end encryption is and why it matters. We also covered the basics of symmetric and asymmetric encryption. Now, we’ll focus on symmetric encryption — specifically using the AES algorithm — and implement it safely and effectively in Python. Symmetric…
In Part 1, I described how pandas reached its limit and how Polars solved my immediate performance headaches. In this part, I’ll dig into the practical steps I used to convert a real data pipeline from pandas to Polars. I’ll share what made the migration…
Here’s a fun thought experiment: imagine you’re sending a postcard through the mail, but instead of the postal workers just seeing the address, they can read your entire message, make copies, store it in their database, and share it with whoever they want. Sounds terrible,…
There I was at 2:47 AM on a Tuesday, staring at my laptop screen while my “quick data analysis” entered its fourth hour. The progress bar hadn’t moved in twenty minutes, my MacBook was making sounds that belonged in a server room, and I was…
You could say it all began back in June 1979. That’s when VisiCalc—the world’s first spreadsheet app—landed on the Apple II. Fast forward nearly forty years, and while VisiCalc is long gone, its grandchildren (hello, Excel!) are everywhere, especially in finance. I meet traders who…
How to Build a Modern Python API in 2025: FastAPI vs. Flask vs. Django Rest Framework
August 1, 2025
There’s never been a better (or more confusing) time to build an API in Python. Ten years ago, your options were “Flask or… did you say something else?” Now we’re spoiled: FastAPI, Flask, and Django Rest Framework (DRF) are all mature, battle-tested, and—let’s be honest—a…
5 Python Libraries That Actually Changed How I Code (And Why I Wish I'd Found Them Sooner)
August 1, 2025
I’ve been writing Python for about eight years now, and I’m still discovering libraries that make me think, “where has this been all my life?” Just last week, I was debugging a data processing nightmare at 2 AM when I stumbled across something that literally…
In this tutorial, we will go through ZIP archive, in brief, and cover how to work efficiently with ZipFile in python. We will be using the inbuilt python library Zipfile for this and implement some simple python scripts. What is a ZIP archive and how…
In this tutorial, we will cover the preorder traversal ( DLR traversal ) in binary trees in both recursive and non-recursive methods. In preorder traversal, we process each node before either of its subtrees. Also, it is the simplest to understand binary tree traversal method….
In this tutorial, We are going to make an Amazon Price Scraping and Auto mailer Python App using Requests, BeautifulSoup and smtplib library that check for the price change and if the product’s price goes beyond a set value, it automatically emails the user or…
