Category: Python

Perfect 👍Given how deeply you approached Strings and Lists, a Deep Python Dictionary (dict) tutorial will take your Python fundamentals to an interview + real-world production level. Below is a complete “Deep Python Dictionaries...

🔥 Awesome — this is going to be your “Deep Python Lists in 3 Days” full mastery roadmap. You’ll go from list internals (memory, references, slicing) → fundamental list algorithms → advanced sliding window and two-pointer...

Let’s do this step-by-step: first build a deep mental model of Python strings, then walk through all the exercises with solid patterns (brute-force → optimal where it matters). 1️⃣ Python Strings – Deep Mental Model 1.1 What...

Here we are with a complete, step-by-step Python tutorial on📘 File Handling + Exception Handling (Basic → Advanced → Real-World → Interview-Ready) We’ll go from beginner-level ideas to advanced, industry-grade usage — with...

Excellent 👏 — this is a core Python topic and one of the most asked interview areas for data engineers, backend developers, and AI/ML engineers. Let’s make it interactive + simple + industry-connected with examples, diagrams...

let’s build a solid foundations-first explanation of how processes, threads, stacks, memory, and process creation work from an OS viewpoint, aimed at someone starting with OS concepts. I’ll keep it clear, conceptual, and...

Perfect 👌 — let’s make this the ultimate “Asyncio in Python” guide — explained that would teach you in an interactive class — from basics → practical → real industry usage → interview prep. 🧠 1. What is asyncio? Think of Python...

Absolutely! Let’s do a deep dive into Pydantic step by step, with clear examples and industry use cases. I’ll break this down in a structured way so you can fully grasp it. 1. What is Pydantic? Pydantic is a data validation and...

let’s add JWT authentication, password hashing, protected routes, and a Dockerized pgAdmin to your FastAPI + PostgreSQL stack. I’ll give you a focused, ready-to-run implementation (files + explanations + Docker changes).I’ll...

👉 In this Post we will show how to connect these APIs to a real production database (like PostgreSQL ) using SQLAlchemy or SQLModel — with environment variables for security. Excellent choice 💪 — moving from SQLite → PostgreSQL...

Perfect 👍 — let’s do a side-by-side mini example comparing Flask vs FastAPI for the same RESTful API.This will make it crystal clear how both frameworks work. 🎯 Goal: Build a simple API with two endpoints GET / → returns a...

Let’s go step-by-step So First ALL ABOUT API👇 🧩 1️⃣ What is an API? API stands for Application Programming Interface.It is a set of rules and endpoints that allows two applications or systems to communicate with each other....