by ABCofAI Team | Oct 24, 2025 | Python
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 (conceptually described), and interview... by ABCofAI Team | Oct 24, 2025 | Python
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 practical — with Python-relevant notes and... by ABCofAI Team | Oct 23, 2025 | Python
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 code as a line of people at a single... by ABCofAI Team | Oct 23, 2025 | 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 settings management library for Python,... by ABCofAI Team | Oct 23, 2025 | Python
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 also briefly explain how to do the same for... by ABCofAI Team | Oct 23, 2025 | Python
👉 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 is exactly what you’d do in a real-world... by ABCofAI Team | Oct 23, 2025 | Python
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 welcome message GET /items/{item_id} →... by ABCofAI Team | Oct 23, 2025 | Python
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. Think of it as a messenger between two... by ABCofAI Team | Jul 21, 2025 | Python
✅ Finalized Python Problem-Solving Template (Enhanced) 🧠 0. Understand the Problem Problem Statement: What exactly is asked? Input/Output Format: Examples + edge cases Constraints: Time/space limits, input size Keywords: Sort, Search, Max/Min, Count, Path, Decision ✏️... by ABCofAI Team | Jul 21, 2025 | Python
Below is a structured, visual, and templated explanation for core algorithmic patterns. Each includes: ✅ Problem Statement 🧠 Pattern / Strategy Used 🔍 Why that pattern works here ✍️ Pseudocode (before coding) 🧭 Flow (decision-making or diagram) 🔧 Code using Input →...