Python Operators & input() Explained 2026 | Class 3 - Build a Calculator from Scratch (Urdu/Hindi)

Learn the Python input() function, all the core operators, and build your first real Calculator — explained step by step in simple Urdu/Hindi. This is Class 3 of the FREE "Code to AI" full course for absolute beginners. No prior experience needed! 🚀 In this class we take user input, master arithmetic, comparison, assignment, logical & membership operators, and put it all together to build a working calculator program. 📚 What You'll Learn in Class 3: ✅ The input() function — taking input from the user ✅ Why input is always text (str) by default + type casting it for math ✅ The concatenation trap: "2" + "3" = "23" (not 5!) ✅ Arithmetic operators: + - * / % ** (power) and floor division ✅ Assignment operators: += -= *= as shorthand ✅ Comparison operators: == and != (equal & not equal) ✅ Relational operators: ✅ Logical operators: and / or (boolean logic) ✅ Membership operator: in ✅ F-strings to display results cleanly ✅ Build Project: a working Calculator program 🧮 ⏱ Timestamps: 0:00 Assignment review & recap 06:51 type() for debugging 13:20 The input() function 26:18 Arithmetic operations & data conversion 31:35 Assignment operators (+=, -=, *=) 40:29 Comparison operators (==, !=) 52:11 Greater than & less than 01:00:20 Logical operators (and / or) 01:31:25 Membership operator (in) 01:10:33 Building the Calculator 01:19:41 Modulus (remainder) operator 01:28:47 Week 1 Project & wrap-up 📝 Class 3 Project — Personality Card Generator: Build a "Personality Card Generator" in a Markdown file using everything you've learned (variables, input(), f-strings, operators). Go through the Week 1 project details, implement it, and submit your results at the START of Friday's class. Push it to GitHub & share the link in the WhatsApp group! ✅ 👨‍🏫 About the Instructor: I'm Ali Hasnain — a Lead AI Engineer & CTO building production AI systems (computer vision, NLP, multi-agent LLM systems). I'll take you from ZERO to a real job-ready portfolio. 🔔 Subscribe for new classes every week — let's build the future together, from Code to AI! ▶️ Full Playlist:    • Code to AI: Python & Data Science Full Cou...   ◀️ Previous Class (Class 2):    • Python Variables & Data Types Explained 20...   #python #learnpython #pythonforbeginners #pythontutorial #datascience #ai #codetoai #pythonoperators #PythonInput #PythonCalculator #urdututorial #hinditutorial #pythonurdu #learntocodefast #programming #fstrings #codingforbeginners #pythonprojects #machinelearning #calculator