Hello World 2.0: Build a Simple Python App in 10 Minutes Hello World 2.0: Build a Simple Python App in 10 Minutes From zero to working app: master the basic concepts of user input, variables, and functions. Welcome! Python's reputation as a beginner-friendly language is well-earned. Unlike many other languages, you can go from an empty text file to a functional application in under ten minutes, learning fundamental programming concepts along the way. We’re going to build a simple **"Tip Calculator"** that takes user input and uses basic math operations—the perfect "Hello World 2.0" to kickstart your coding journey. Phase 1: Setup and the "Shebang" (1 Minute) Before starting, ensure you have Python installed. We'll use a simple text editor (like VS Code, Sublime Text, or even Notepad) for this exercise. Create a new file named ...