Python decorators are powerful tools that allow developers to modify or enhance the functionality of functions or classes without changing their actual code. By wrapping one function with another, decorators enable reusable logic such as logging, authentication, or timing to be easily applied across multiple functions. This improves code reusability, keeps the codebase clean, and promotes the DRY (Don't Repeat Yourself) principle. Developers can create custom decorators to handle repetitive tasks efficiently, making the code more modular and easier to maintain. Mastering decorators is a key skill in advanced Python development. If you want to learn, start your journey with a Python certification course: https://www.theiotacademy.co/python-training