Modules & Imports In JavaScript, we break code into separate files and use / . Python does the same with modules (single files) and packages (folders with ). This helps us organize code, reuse logic, and avoid huge single files . Importing a Module Suppose we have a file : Usage: JS equivalent: Selective Import Aliases Built-in Modules Python ships with a large standard library , similar to Node’s core modules. Creating a Package Folder structure: : : Usage: Relative Imports (inside packages) Special Import Styles Every module has a . When run directly → When imported → module name. This is like a check in JS/Node. Example – Inventory Package : : Main app: ✅ Why it matters : Imports in Python are similar to JS , but Python has powerful packages to group files. Using allows code to act as both script and library . Real-world projects split code into modules for maintainability and reusability .