Modules in Python
Modules are files containing Python code (functions, classes, variables) that you can import into other files. They help organize code, avoid repetition, and make programs easier to maintain.
Python comes with a rich standard library of modules, and you can create your own.
Importing Modules
Use import to load a module.
Import Specific Names
Use from ... import to import specific items.
Aliases with as
Creating Your Own Module
Save functions in a .py file and import it.
__name__ == "__main__" Guard
Run code only when file is executed directly, not when imported.
Quick Quiz
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